/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-new/count_by_nondet.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 12:37:11,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 12:37:11,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 12:37:11,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-02 12:37:11,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 12:37:11,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 12:37:11,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 12:37:11,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 12:37:11,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 12:37:11,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 12:37:11,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 12:37:11,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 12:37:11,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 12:37:11,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 12:37:11,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 12:37:11,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 12:37:11,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 12:37:11,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 12:37:11,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 12:37:11,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 12:37:11,429 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-05-02 12:37:11,456 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 12:37:11,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 12:37:11,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-02 12:37:11,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-02 12:37:11,459 INFO L138 SettingsManager]: * Use SBE=true [2021-05-02 12:37:11,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 12:37:11,459 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 12:37:11,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 12:37:11,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 12:37:11,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 12:37:11,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 12:37:11,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 12:37:11,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 12:37:11,460 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 12:37:11,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 12:37:11,460 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 12:37:11,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 12:37:11,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 12:37:11,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 12:37:11,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 12:37:11,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 12:37:11,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 12:37:11,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-02 12:37:11,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-02 12:37:11,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 12:37:11,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-02 12:37:11,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-02 12:37:11,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-05-02 12:37:11,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 12:37:11,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 12:37:11,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 12:37:11,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 12:37:11,859 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 12:37:11,860 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 12:37:11,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_nondet.i [2021-05-02 12:37:11,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915f238b3/400510b0c1384a6488bfab619d8350dc/FLAGb37cac39c [2021-05-02 12:37:12,263 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 12:37:12,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_nondet.i [2021-05-02 12:37:12,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915f238b3/400510b0c1384a6488bfab619d8350dc/FLAGb37cac39c [2021-05-02 12:37:12,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915f238b3/400510b0c1384a6488bfab619d8350dc [2021-05-02 12:37:12,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 12:37:12,287 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-02 12:37:12,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 12:37:12,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 12:37:12,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 12:37:12,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 12:37:12" (1/1) ... [2021-05-02 12:37:12,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2faeb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:37:12, skipping insertion in model container [2021-05-02 12:37:12,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 12:37:12" (1/1) ... [2021-05-02 12:37:12,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 12:37:12,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 12:37:12,441 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_nondet.i[891,904] [2021-05-02 12:37:12,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 12:37:12,456 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 12:37:12,464 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_nondet.i[891,904] [2021-05-02 12:37:12,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 12:37:12,492 INFO L208 MainTranslator]: Completed translation [2021-05-02 12:37:12,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:37:12 WrapperNode [2021-05-02 12:37:12,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 12:37:12,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 12:37:12,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 12:37:12,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 12:37:12,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:37:12" (1/1) ... [2021-05-02 12:37:12,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:37:12" (1/1) ... [2021-05-02 12:37:12,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:37:12" (1/1) ... [2021-05-02 12:37:12,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:37:12" (1/1) ... [2021-05-02 12:37:12,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:37:12" (1/1) ... [2021-05-02 12:37:12,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:37:12" (1/1) ... [2021-05-02 12:37:12,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:37:12" (1/1) ... [2021-05-02 12:37:12,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 12:37:12,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 12:37:12,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 12:37:12,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 12:37:12,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:37:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 12:37:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 12:37:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 12:37:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 12:37:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-02 12:37:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 12:37:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 12:37:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 12:37:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 12:37:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-02 12:37:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-02 12:37:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 12:37:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 12:37:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-02 12:37:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 12:37:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-02 12:37:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 12:37:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 12:37:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 12:37:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 12:37:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 12:37:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 12:37:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 12:37:12,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 12:37:12,799 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-02 12:37:12,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 12:37:12 BoogieIcfgContainer [2021-05-02 12:37:12,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 12:37:12,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 12:37:12,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 12:37:12,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 12:37:12,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 12:37:12" (1/3) ... [2021-05-02 12:37:12,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c99a4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 12:37:12, skipping insertion in model container [2021-05-02 12:37:12,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:37:12" (2/3) ... [2021-05-02 12:37:12,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c99a4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 12:37:12, skipping insertion in model container [2021-05-02 12:37:12,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 12:37:12" (3/3) ... [2021-05-02 12:37:12,804 INFO L111 eAbstractionObserver]: Analyzing ICFG count_by_nondet.i [2021-05-02 12:37:12,807 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-02 12:37:12,826 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 12:37:12,837 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 12:37:12,866 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 12:37:12,866 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-02 12:37:12,866 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-02 12:37:12,867 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 12:37:12,867 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 12:37:12,867 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 12:37:12,867 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 12:37:12,867 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 12:37:12,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 12:37:12,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-02 12:37:12,899 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:12,900 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:12,900 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:12,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:12,903 INFO L82 PathProgramCache]: Analyzing trace with hash 2089905556, now seen corresponding path program 1 times [2021-05-02 12:37:12,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:12,908 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759759690] [2021-05-02 12:37:12,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:13,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:13,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:13,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759759690] [2021-05-02 12:37:13,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759759690] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 12:37:13,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 12:37:13,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-02 12:37:13,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000529868] [2021-05-02 12:37:13,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-02 12:37:13,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:13,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-02 12:37:13,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-02 12:37:13,131 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:13,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:13,210 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-05-02 12:37:13,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-02 12:37:13,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-05-02 12:37:13,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:13,215 INFO L225 Difference]: With dead ends: 36 [2021-05-02 12:37:13,215 INFO L226 Difference]: Without dead ends: 15 [2021-05-02 12:37:13,217 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-02 12:37:13,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-02 12:37:13,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-05-02 12:37:13,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:13,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-05-02 12:37:13,241 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2021-05-02 12:37:13,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:13,241 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-05-02 12:37:13,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:13,242 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-05-02 12:37:13,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-02 12:37:13,242 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:13,243 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:13,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 12:37:13,243 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:13,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:13,244 INFO L82 PathProgramCache]: Analyzing trace with hash -545306800, now seen corresponding path program 1 times [2021-05-02 12:37:13,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:13,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397917529] [2021-05-02 12:37:13,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:13,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:13,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:13,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:13,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397917529] [2021-05-02 12:37:13,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397917529] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:13,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590925478] [2021-05-02 12:37:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:13,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-02 12:37:13,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:13,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:13,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:13,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:13,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:13,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590925478] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:13,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:13,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2021-05-02 12:37:13,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013818943] [2021-05-02 12:37:13,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-02 12:37:13,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:13,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-02 12:37:13,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-05-02 12:37:13,543 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:13,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:13,602 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-05-02 12:37:13,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-02 12:37:13,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-05-02 12:37:13,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:13,603 INFO L225 Difference]: With dead ends: 21 [2021-05-02 12:37:13,603 INFO L226 Difference]: Without dead ends: 16 [2021-05-02 12:37:13,604 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 61.6ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-05-02 12:37:13,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-05-02 12:37:13,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-05-02 12:37:13,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:13,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-05-02 12:37:13,608 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2021-05-02 12:37:13,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:13,608 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-05-02 12:37:13,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:13,608 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-05-02 12:37:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-02 12:37:13,609 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:13,609 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:13,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-02 12:37:13,831 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:13,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:13,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1046323724, now seen corresponding path program 2 times [2021-05-02 12:37:13,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:13,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089110911] [2021-05-02 12:37:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:13,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:13,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:13,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:13,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089110911] [2021-05-02 12:37:13,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089110911] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:13,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644184637] [2021-05-02 12:37:13,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:14,038 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:37:14,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:14,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-02 12:37:14,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:14,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:14,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644184637] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:14,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:14,159 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-05-02 12:37:14,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297015029] [2021-05-02 12:37:14,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-02 12:37:14,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:14,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-02 12:37:14,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-05-02 12:37:14,161 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:14,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:14,349 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-05-02 12:37:14,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-02 12:37:14,350 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-05-02 12:37:14,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:14,350 INFO L225 Difference]: With dead ends: 24 [2021-05-02 12:37:14,350 INFO L226 Difference]: Without dead ends: 19 [2021-05-02 12:37:14,351 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 191.6ms TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-05-02 12:37:14,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-05-02 12:37:14,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-05-02 12:37:14,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:14,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-05-02 12:37:14,355 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2021-05-02 12:37:14,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:14,355 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-05-02 12:37:14,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:14,355 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-05-02 12:37:14,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-02 12:37:14,355 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:14,356 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:14,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:14,574 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:14,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:14,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1594899912, now seen corresponding path program 3 times [2021-05-02 12:37:14,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:14,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549862707] [2021-05-02 12:37:14,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:14,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:14,650 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:14,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:14,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549862707] [2021-05-02 12:37:14,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549862707] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:14,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026275526] [2021-05-02 12:37:14,651 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:14,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-05-02 12:37:14,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:14,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 10 conjunts are in the unsatisfiable core [2021-05-02 12:37:14,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:14,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:14,756 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:14,757 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026275526] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:14,757 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:14,757 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-05-02 12:37:14,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612573441] [2021-05-02 12:37:14,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-02 12:37:14,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:14,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-02 12:37:14,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-05-02 12:37:14,758 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 9 states have internal predecessors, (19), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:14,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:14,900 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-05-02 12:37:14,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-02 12:37:14,900 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 9 states have internal predecessors, (19), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-05-02 12:37:14,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:14,901 INFO L225 Difference]: With dead ends: 26 [2021-05-02 12:37:14,901 INFO L226 Difference]: Without dead ends: 21 [2021-05-02 12:37:14,901 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 149.4ms TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-05-02 12:37:14,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-05-02 12:37:14,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-05-02 12:37:14,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:14,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-05-02 12:37:14,905 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2021-05-02 12:37:14,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:14,905 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-05-02 12:37:14,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 9 states have internal predecessors, (19), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:14,905 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-05-02 12:37:14,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-05-02 12:37:14,906 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:14,906 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:15,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:15,125 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:15,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:15,125 INFO L82 PathProgramCache]: Analyzing trace with hash 495639172, now seen corresponding path program 4 times [2021-05-02 12:37:15,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:15,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269676907] [2021-05-02 12:37:15,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:15,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:15,206 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:15,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:15,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269676907] [2021-05-02 12:37:15,207 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269676907] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:15,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529841780] [2021-05-02 12:37:15,207 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:15,241 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:37:15,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:15,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjunts are in the unsatisfiable core [2021-05-02 12:37:15,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:15,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,302 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:15,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529841780] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:15,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:15,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 13 [2021-05-02 12:37:15,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184970785] [2021-05-02 12:37:15,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-02 12:37:15,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:15,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-02 12:37:15,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-05-02 12:37:15,304 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 10 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:15,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:15,478 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-05-02 12:37:15,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-02 12:37:15,478 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 10 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-05-02 12:37:15,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:15,479 INFO L225 Difference]: With dead ends: 28 [2021-05-02 12:37:15,479 INFO L226 Difference]: Without dead ends: 23 [2021-05-02 12:37:15,479 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 190.5ms TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2021-05-02 12:37:15,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-05-02 12:37:15,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-05-02 12:37:15,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:15,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-05-02 12:37:15,483 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2021-05-02 12:37:15,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:15,483 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-05-02 12:37:15,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 10 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:15,483 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-05-02 12:37:15,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-05-02 12:37:15,484 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:15,484 INFO L523 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:15,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:15,703 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:15,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:15,704 INFO L82 PathProgramCache]: Analyzing trace with hash 668022848, now seen corresponding path program 5 times [2021-05-02 12:37:15,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:15,704 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842149451] [2021-05-02 12:37:15,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:15,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:15,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:15,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842149451] [2021-05-02 12:37:15,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842149451] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:15,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949384039] [2021-05-02 12:37:15,834 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:15,881 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-02 12:37:15,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:15,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-02 12:37:15,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:15,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:15,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,027 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:16,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949384039] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:16,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:16,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 14 [2021-05-02 12:37:16,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473033352] [2021-05-02 12:37:16,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-02 12:37:16,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:16,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-02 12:37:16,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-05-02 12:37:16,034 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 11 states have internal predecessors, (23), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:16,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:16,338 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2021-05-02 12:37:16,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-02 12:37:16,343 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 11 states have internal predecessors, (23), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-05-02 12:37:16,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:16,344 INFO L225 Difference]: With dead ends: 30 [2021-05-02 12:37:16,344 INFO L226 Difference]: Without dead ends: 25 [2021-05-02 12:37:16,346 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 297.7ms TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2021-05-02 12:37:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-05-02 12:37:16,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2021-05-02 12:37:16,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:16,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-05-02 12:37:16,362 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 21 [2021-05-02 12:37:16,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:16,362 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2021-05-02 12:37:16,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 11 states have internal predecessors, (23), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:16,363 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-05-02 12:37:16,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-02 12:37:16,364 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:16,366 INFO L523 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:16,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-05-02 12:37:16,581 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:16,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:16,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1174989060, now seen corresponding path program 6 times [2021-05-02 12:37:16,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:16,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111937298] [2021-05-02 12:37:16,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:16,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:16,755 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:16,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111937298] [2021-05-02 12:37:16,756 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111937298] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:16,756 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053383022] [2021-05-02 12:37:16,756 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:16,806 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-02 12:37:16,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:16,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-02 12:37:16,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:16,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:16,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053383022] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:16,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:16,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 15 [2021-05-02 12:37:16,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984621268] [2021-05-02 12:37:16,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-02 12:37:16,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:16,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-02 12:37:16,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2021-05-02 12:37:16,888 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:17,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:17,116 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2021-05-02 12:37:17,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-02 12:37:17,117 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-05-02 12:37:17,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:17,117 INFO L225 Difference]: With dead ends: 32 [2021-05-02 12:37:17,117 INFO L226 Difference]: Without dead ends: 27 [2021-05-02 12:37:17,118 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 219.7ms TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-05-02 12:37:17,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-05-02 12:37:17,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-05-02 12:37:17,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-05-02 12:37:17,123 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 23 [2021-05-02 12:37:17,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:17,123 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-05-02 12:37:17,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:17,123 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-05-02 12:37:17,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-05-02 12:37:17,124 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:17,124 INFO L523 BasicCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:17,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:17,342 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:17,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:17,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1512060600, now seen corresponding path program 7 times [2021-05-02 12:37:17,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:17,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111816851] [2021-05-02 12:37:17,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:17,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:17,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111816851] [2021-05-02 12:37:17,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111816851] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:17,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080652134] [2021-05-02 12:37:17,432 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 14 conjunts are in the unsatisfiable core [2021-05-02 12:37:17,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:17,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:17,551 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:17,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080652134] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:17,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:17,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 16 [2021-05-02 12:37:17,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491030451] [2021-05-02 12:37:17,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-02 12:37:17,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:17,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-02 12:37:17,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-05-02 12:37:17,553 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 16 states, 16 states have (on average 1.6875) internal successors, (27), 13 states have internal predecessors, (27), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:17,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:17,824 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-05-02 12:37:17,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-02 12:37:17,824 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.6875) internal successors, (27), 13 states have internal predecessors, (27), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-05-02 12:37:17,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:17,825 INFO L225 Difference]: With dead ends: 34 [2021-05-02 12:37:17,825 INFO L226 Difference]: Without dead ends: 29 [2021-05-02 12:37:17,825 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 279.3ms TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2021-05-02 12:37:17,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-05-02 12:37:17,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2021-05-02 12:37:17,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:17,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2021-05-02 12:37:17,829 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 25 [2021-05-02 12:37:17,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:17,829 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2021-05-02 12:37:17,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.6875) internal successors, (27), 13 states have internal predecessors, (27), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:17,830 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2021-05-02 12:37:17,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-05-02 12:37:17,830 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:17,830 INFO L523 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:18,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:18,049 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:18,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:18,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1803528332, now seen corresponding path program 8 times [2021-05-02 12:37:18,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:18,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358250923] [2021-05-02 12:37:18,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:18,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:18,144 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:18,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:18,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358250923] [2021-05-02 12:37:18,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358250923] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:18,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20085932] [2021-05-02 12:37:18,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:18,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:37:18,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:18,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-02 12:37:18,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:18,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:18,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20085932] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:18,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:18,319 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 17 [2021-05-02 12:37:18,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116524322] [2021-05-02 12:37:18,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-02 12:37:18,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:18,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-02 12:37:18,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-05-02 12:37:18,320 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 17 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 14 states have internal predecessors, (29), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:18,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:18,580 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-05-02 12:37:18,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-02 12:37:18,580 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 14 states have internal predecessors, (29), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-05-02 12:37:18,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:18,581 INFO L225 Difference]: With dead ends: 36 [2021-05-02 12:37:18,581 INFO L226 Difference]: Without dead ends: 31 [2021-05-02 12:37:18,581 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 280.6ms TimeCoverageRelationStatistics Valid=200, Invalid=556, Unknown=0, NotChecked=0, Total=756 [2021-05-02 12:37:18,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-05-02 12:37:18,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2021-05-02 12:37:18,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:18,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2021-05-02 12:37:18,585 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 27 [2021-05-02 12:37:18,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:18,585 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2021-05-02 12:37:18,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 14 states have internal predecessors, (29), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:18,585 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2021-05-02 12:37:18,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-02 12:37:18,585 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:18,586 INFO L523 BasicCegarLoop]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:18,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-05-02 12:37:18,799 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:18,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:18,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1218758352, now seen corresponding path program 9 times [2021-05-02 12:37:18,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:18,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084318605] [2021-05-02 12:37:18,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:18,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:18,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:18,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084318605] [2021-05-02 12:37:18,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084318605] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:18,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153030960] [2021-05-02 12:37:18,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:18,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-05-02 12:37:18,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:18,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 16 conjunts are in the unsatisfiable core [2021-05-02 12:37:18,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:18,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,057 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:19,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153030960] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:19,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:19,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 18 [2021-05-02 12:37:19,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421751889] [2021-05-02 12:37:19,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-02 12:37:19,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:19,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-02 12:37:19,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-05-02 12:37:19,058 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 15 states have internal predecessors, (31), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:19,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:19,355 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2021-05-02 12:37:19,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-02 12:37:19,355 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 15 states have internal predecessors, (31), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-05-02 12:37:19,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:19,356 INFO L225 Difference]: With dead ends: 38 [2021-05-02 12:37:19,357 INFO L226 Difference]: Without dead ends: 33 [2021-05-02 12:37:19,357 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 324.8ms TimeCoverageRelationStatistics Valid=234, Invalid=636, Unknown=0, NotChecked=0, Total=870 [2021-05-02 12:37:19,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-05-02 12:37:19,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2021-05-02 12:37:19,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.037037037037037) internal successors, (28), 27 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:19,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2021-05-02 12:37:19,361 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 29 [2021-05-02 12:37:19,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:19,361 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2021-05-02 12:37:19,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 15 states have internal predecessors, (31), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:19,361 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2021-05-02 12:37:19,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-02 12:37:19,362 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:19,362 INFO L523 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:19,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:19,569 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:19,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:19,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1895523348, now seen corresponding path program 10 times [2021-05-02 12:37:19,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:19,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188518687] [2021-05-02 12:37:19,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:19,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:19,728 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:19,728 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:19,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188518687] [2021-05-02 12:37:19,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188518687] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:19,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353092340] [2021-05-02 12:37:19,728 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:19,782 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:37:19,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:19,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 14 conjunts are in the unsatisfiable core [2021-05-02 12:37:19,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:19,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,900 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:19,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353092340] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:19,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:19,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 19 [2021-05-02 12:37:19,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965003994] [2021-05-02 12:37:19,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-02 12:37:19,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:19,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-02 12:37:19,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-05-02 12:37:19,902 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 19 states, 19 states have (on average 1.736842105263158) internal successors, (33), 16 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:20,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:20,225 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2021-05-02 12:37:20,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-02 12:37:20,226 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.736842105263158) internal successors, (33), 16 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-05-02 12:37:20,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:20,226 INFO L225 Difference]: With dead ends: 40 [2021-05-02 12:37:20,226 INFO L226 Difference]: Without dead ends: 35 [2021-05-02 12:37:20,227 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 329.0ms TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2021-05-02 12:37:20,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-05-02 12:37:20,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2021-05-02 12:37:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:20,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2021-05-02 12:37:20,229 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 31 [2021-05-02 12:37:20,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:20,229 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2021-05-02 12:37:20,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.736842105263158) internal successors, (33), 16 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2021-05-02 12:37:20,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-02 12:37:20,230 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:20,230 INFO L523 BasicCegarLoop]: trace histogram [11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:20,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:20,441 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:20,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:20,441 INFO L82 PathProgramCache]: Analyzing trace with hash 568344488, now seen corresponding path program 11 times [2021-05-02 12:37:20,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:20,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636579929] [2021-05-02 12:37:20,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:20,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:20,622 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:20,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:20,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636579929] [2021-05-02 12:37:20,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636579929] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:20,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784770106] [2021-05-02 12:37:20,622 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:20,676 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-05-02 12:37:20,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:20,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 18 conjunts are in the unsatisfiable core [2021-05-02 12:37:20,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:20,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,804 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:20,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784770106] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:20,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:20,805 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 20 [2021-05-02 12:37:20,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593204101] [2021-05-02 12:37:20,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-02 12:37:20,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:20,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-02 12:37:20,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2021-05-02 12:37:20,806 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 20 states, 20 states have (on average 1.75) internal successors, (35), 17 states have internal predecessors, (35), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:21,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:21,214 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2021-05-02 12:37:21,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-02 12:37:21,215 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.75) internal successors, (35), 17 states have internal predecessors, (35), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-05-02 12:37:21,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:21,215 INFO L225 Difference]: With dead ends: 42 [2021-05-02 12:37:21,215 INFO L226 Difference]: Without dead ends: 37 [2021-05-02 12:37:21,216 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 438.9ms TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2021-05-02 12:37:21,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-05-02 12:37:21,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-05-02 12:37:21,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.032258064516129) internal successors, (32), 31 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:21,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-05-02 12:37:21,220 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 33 [2021-05-02 12:37:21,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:21,220 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-05-02 12:37:21,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.75) internal successors, (35), 17 states have internal predecessors, (35), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:21,220 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-05-02 12:37:21,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-05-02 12:37:21,221 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:21,221 INFO L523 BasicCegarLoop]: trace histogram [12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:21,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-05-02 12:37:21,437 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:21,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:21,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1818354788, now seen corresponding path program 12 times [2021-05-02 12:37:21,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:21,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582709907] [2021-05-02 12:37:21,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:21,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:21,580 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:21,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:21,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582709907] [2021-05-02 12:37:21,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582709907] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:21,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082139676] [2021-05-02 12:37:21,580 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:21,642 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-05-02 12:37:21,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:21,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-02 12:37:21,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:21,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,751 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:21,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082139676] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:21,751 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:21,751 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 21 [2021-05-02 12:37:21,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181349576] [2021-05-02 12:37:21,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-02 12:37:21,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:21,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-02 12:37:21,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2021-05-02 12:37:21,752 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 21 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 18 states have internal predecessors, (37), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:22,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:22,171 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2021-05-02 12:37:22,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-02 12:37:22,172 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 18 states have internal predecessors, (37), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-05-02 12:37:22,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:22,172 INFO L225 Difference]: With dead ends: 44 [2021-05-02 12:37:22,172 INFO L226 Difference]: Without dead ends: 39 [2021-05-02 12:37:22,173 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 454.4ms TimeCoverageRelationStatistics Valid=354, Invalid=906, Unknown=0, NotChecked=0, Total=1260 [2021-05-02 12:37:22,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-05-02 12:37:22,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2021-05-02 12:37:22,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 33 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:22,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2021-05-02 12:37:22,176 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 35 [2021-05-02 12:37:22,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:22,177 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2021-05-02 12:37:22,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 18 states have internal predecessors, (37), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:22,177 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2021-05-02 12:37:22,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-02 12:37:22,177 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:22,177 INFO L523 BasicCegarLoop]: trace histogram [13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:22,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-05-02 12:37:22,396 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:22,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:22,397 INFO L82 PathProgramCache]: Analyzing trace with hash 487410208, now seen corresponding path program 13 times [2021-05-02 12:37:22,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:22,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344500507] [2021-05-02 12:37:22,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:22,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:22,566 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:22,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:22,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344500507] [2021-05-02 12:37:22,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344500507] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:22,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887232120] [2021-05-02 12:37:22,567 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:22,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 20 conjunts are in the unsatisfiable core [2021-05-02 12:37:22,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:22,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:22,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887232120] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:22,729 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:22,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 22 [2021-05-02 12:37:22,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556528131] [2021-05-02 12:37:22,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-02 12:37:22,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:22,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-02 12:37:22,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2021-05-02 12:37:22,730 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand has 22 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 19 states have internal predecessors, (39), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:23,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:23,182 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2021-05-02 12:37:23,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-02 12:37:23,182 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 19 states have internal predecessors, (39), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-05-02 12:37:23,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:23,183 INFO L225 Difference]: With dead ends: 46 [2021-05-02 12:37:23,183 INFO L226 Difference]: Without dead ends: 41 [2021-05-02 12:37:23,183 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 485.8ms TimeCoverageRelationStatistics Valid=400, Invalid=1006, Unknown=0, NotChecked=0, Total=1406 [2021-05-02 12:37:23,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-05-02 12:37:23,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-05-02 12:37:23,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:23,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-05-02 12:37:23,187 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 37 [2021-05-02 12:37:23,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:23,187 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-05-02 12:37:23,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 19 states have internal predecessors, (39), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-05-02 12:37:23,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-02 12:37:23,188 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:23,188 INFO L523 BasicCegarLoop]: trace histogram [14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:23,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-05-02 12:37:23,408 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:23,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:23,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1349923036, now seen corresponding path program 14 times [2021-05-02 12:37:23,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:23,409 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248394566] [2021-05-02 12:37:23,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:23,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:23,584 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:23,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:23,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248394566] [2021-05-02 12:37:23,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248394566] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:23,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667397510] [2021-05-02 12:37:23,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:23,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:37:23,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:23,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 21 conjunts are in the unsatisfiable core [2021-05-02 12:37:23,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:23,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:23,763 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:23,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667397510] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:23,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:23,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 23 [2021-05-02 12:37:23,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50807084] [2021-05-02 12:37:23,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-02 12:37:23,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:23,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-02 12:37:23,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2021-05-02 12:37:23,765 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 20 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:24,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:24,196 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2021-05-02 12:37:24,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-02 12:37:24,197 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 20 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-05-02 12:37:24,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:24,198 INFO L225 Difference]: With dead ends: 48 [2021-05-02 12:37:24,198 INFO L226 Difference]: Without dead ends: 43 [2021-05-02 12:37:24,198 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 491.1ms TimeCoverageRelationStatistics Valid=449, Invalid=1111, Unknown=0, NotChecked=0, Total=1560 [2021-05-02 12:37:24,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-05-02 12:37:24,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2021-05-02 12:37:24,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:24,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2021-05-02 12:37:24,203 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 39 [2021-05-02 12:37:24,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:24,203 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2021-05-02 12:37:24,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 20 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:24,203 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2021-05-02 12:37:24,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-02 12:37:24,204 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:24,204 INFO L523 BasicCegarLoop]: trace histogram [15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:24,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:24,423 INFO L428 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:24,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:24,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1296062616, now seen corresponding path program 15 times [2021-05-02 12:37:24,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:24,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542372743] [2021-05-02 12:37:24,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:24,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:24,597 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:24,597 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:24,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542372743] [2021-05-02 12:37:24,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542372743] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:24,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160377317] [2021-05-02 12:37:24,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:24,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-05-02 12:37:24,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:24,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjunts are in the unsatisfiable core [2021-05-02 12:37:24,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:24,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:24,812 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:24,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160377317] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:24,813 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:24,813 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 24 [2021-05-02 12:37:24,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454735761] [2021-05-02 12:37:24,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-02 12:37:24,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:24,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-02 12:37:24,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=369, Unknown=0, NotChecked=0, Total=552 [2021-05-02 12:37:24,814 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 21 states have internal predecessors, (43), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:25,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:25,269 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-05-02 12:37:25,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-02 12:37:25,269 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 21 states have internal predecessors, (43), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-05-02 12:37:25,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:25,270 INFO L225 Difference]: With dead ends: 50 [2021-05-02 12:37:25,270 INFO L226 Difference]: Without dead ends: 45 [2021-05-02 12:37:25,270 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 515.3ms TimeCoverageRelationStatistics Valid=501, Invalid=1221, Unknown=0, NotChecked=0, Total=1722 [2021-05-02 12:37:25,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-05-02 12:37:25,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2021-05-02 12:37:25,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 39 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:25,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2021-05-02 12:37:25,273 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 41 [2021-05-02 12:37:25,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:25,274 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2021-05-02 12:37:25,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 21 states have internal predecessors, (43), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:25,274 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2021-05-02 12:37:25,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-02 12:37:25,274 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:25,275 INFO L523 BasicCegarLoop]: trace histogram [16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:25,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-05-02 12:37:25,494 INFO L428 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:25,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:25,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1075806548, now seen corresponding path program 16 times [2021-05-02 12:37:25,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:25,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331978713] [2021-05-02 12:37:25,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:25,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:25,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:25,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331978713] [2021-05-02 12:37:25,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331978713] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:25,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595064414] [2021-05-02 12:37:25,723 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:25,773 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:37:25,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:25,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 20 conjunts are in the unsatisfiable core [2021-05-02 12:37:25,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:25,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:25,887 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:25,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595064414] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:25,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:25,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 25 [2021-05-02 12:37:25,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312540701] [2021-05-02 12:37:25,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-02 12:37:25,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:25,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-02 12:37:25,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2021-05-02 12:37:25,889 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand has 25 states, 25 states have (on average 1.8) internal successors, (45), 22 states have internal predecessors, (45), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:26,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:26,420 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2021-05-02 12:37:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-02 12:37:26,421 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.8) internal successors, (45), 22 states have internal predecessors, (45), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-05-02 12:37:26,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:26,421 INFO L225 Difference]: With dead ends: 52 [2021-05-02 12:37:26,421 INFO L226 Difference]: Without dead ends: 47 [2021-05-02 12:37:26,422 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 612.6ms TimeCoverageRelationStatistics Valid=556, Invalid=1336, Unknown=0, NotChecked=0, Total=1892 [2021-05-02 12:37:26,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-05-02 12:37:26,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2021-05-02 12:37:26,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.024390243902439) internal successors, (42), 41 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:26,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-05-02 12:37:26,430 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 43 [2021-05-02 12:37:26,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:26,430 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-05-02 12:37:26,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.8) internal successors, (45), 22 states have internal predecessors, (45), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:26,430 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-05-02 12:37:26,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-05-02 12:37:26,431 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:26,431 INFO L523 BasicCegarLoop]: trace histogram [17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:26,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-05-02 12:37:26,651 INFO L428 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:26,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:26,652 INFO L82 PathProgramCache]: Analyzing trace with hash -136877296, now seen corresponding path program 17 times [2021-05-02 12:37:26,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:26,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410906438] [2021-05-02 12:37:26,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:26,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:26,907 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 289 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:26,907 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:26,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410906438] [2021-05-02 12:37:26,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410906438] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:26,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480871897] [2021-05-02 12:37:26,907 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:27,019 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-05-02 12:37:27,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:27,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 24 conjunts are in the unsatisfiable core [2021-05-02 12:37:27,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:27,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:27,121 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 289 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:27,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480871897] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:27,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:27,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 26 [2021-05-02 12:37:27,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053678086] [2021-05-02 12:37:27,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-02 12:37:27,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:27,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-02 12:37:27,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=428, Unknown=0, NotChecked=0, Total=650 [2021-05-02 12:37:27,122 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 23 states have internal predecessors, (47), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:27,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:27,688 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2021-05-02 12:37:27,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-02 12:37:27,689 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 23 states have internal predecessors, (47), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-05-02 12:37:27,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:27,689 INFO L225 Difference]: With dead ends: 54 [2021-05-02 12:37:27,689 INFO L226 Difference]: Without dead ends: 49 [2021-05-02 12:37:27,690 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 700.4ms TimeCoverageRelationStatistics Valid=614, Invalid=1456, Unknown=0, NotChecked=0, Total=2070 [2021-05-02 12:37:27,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-05-02 12:37:27,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2021-05-02 12:37:27,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 43 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:27,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2021-05-02 12:37:27,697 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 45 [2021-05-02 12:37:27,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:27,697 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2021-05-02 12:37:27,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 23 states have internal predecessors, (47), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:27,697 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2021-05-02 12:37:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-02 12:37:27,697 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:27,697 INFO L523 BasicCegarLoop]: trace histogram [18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:27,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-05-02 12:37:27,911 INFO L428 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:27,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:27,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1589914164, now seen corresponding path program 18 times [2021-05-02 12:37:27,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:27,912 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068004134] [2021-05-02 12:37:27,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:28,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:28,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:28,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068004134] [2021-05-02 12:37:28,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068004134] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:28,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270607695] [2021-05-02 12:37:28,144 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:28,245 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-05-02 12:37:28,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:28,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 25 conjunts are in the unsatisfiable core [2021-05-02 12:37:28,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:28,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:28,349 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:28,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270607695] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:28,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:28,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 27 [2021-05-02 12:37:28,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237676486] [2021-05-02 12:37:28,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-02 12:37:28,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:28,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-02 12:37:28,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=459, Unknown=0, NotChecked=0, Total=702 [2021-05-02 12:37:28,351 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 27 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 24 states have internal predecessors, (49), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:28,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:28,905 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-05-02 12:37:28,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-02 12:37:28,906 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 24 states have internal predecessors, (49), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2021-05-02 12:37:28,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:28,906 INFO L225 Difference]: With dead ends: 56 [2021-05-02 12:37:28,906 INFO L226 Difference]: Without dead ends: 51 [2021-05-02 12:37:28,907 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 676.4ms TimeCoverageRelationStatistics Valid=675, Invalid=1581, Unknown=0, NotChecked=0, Total=2256 [2021-05-02 12:37:28,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-05-02 12:37:28,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2021-05-02 12:37:28,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:28,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-05-02 12:37:28,909 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 47 [2021-05-02 12:37:28,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:28,909 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-05-02 12:37:28,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 24 states have internal predecessors, (49), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:28,910 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-05-02 12:37:28,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-02 12:37:28,910 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:28,910 INFO L523 BasicCegarLoop]: trace histogram [19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:29,125 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:29,125 INFO L428 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:29,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:29,126 INFO L82 PathProgramCache]: Analyzing trace with hash -2093973112, now seen corresponding path program 19 times [2021-05-02 12:37:29,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:29,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851788618] [2021-05-02 12:37:29,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:29,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:29,354 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:29,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:29,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851788618] [2021-05-02 12:37:29,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851788618] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:29,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866062278] [2021-05-02 12:37:29,355 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:29,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 26 conjunts are in the unsatisfiable core [2021-05-02 12:37:29,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:29,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:29,593 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:29,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866062278] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:29,593 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:29,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 28 [2021-05-02 12:37:29,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566865153] [2021-05-02 12:37:29,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-02 12:37:29,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:29,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-02 12:37:29,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=491, Unknown=0, NotChecked=0, Total=756 [2021-05-02 12:37:29,594 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 28 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 25 states have internal predecessors, (51), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:30,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:30,156 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-05-02 12:37:30,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-02 12:37:30,157 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 25 states have internal predecessors, (51), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-05-02 12:37:30,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:30,157 INFO L225 Difference]: With dead ends: 58 [2021-05-02 12:37:30,157 INFO L226 Difference]: Without dead ends: 53 [2021-05-02 12:37:30,158 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 697.6ms TimeCoverageRelationStatistics Valid=739, Invalid=1711, Unknown=0, NotChecked=0, Total=2450 [2021-05-02 12:37:30,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-05-02 12:37:30,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2021-05-02 12:37:30,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 47 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:30,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2021-05-02 12:37:30,160 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 49 [2021-05-02 12:37:30,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:30,160 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2021-05-02 12:37:30,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 25 states have internal predecessors, (51), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:30,160 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2021-05-02 12:37:30,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-02 12:37:30,161 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:30,161 INFO L523 BasicCegarLoop]: trace histogram [20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:30,376 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:30,377 INFO L428 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:30,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:30,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1163317692, now seen corresponding path program 20 times [2021-05-02 12:37:30,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:30,377 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600725974] [2021-05-02 12:37:30,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:30,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:30,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:30,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600725974] [2021-05-02 12:37:30,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600725974] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:30,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607708295] [2021-05-02 12:37:30,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:30,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:37:30,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:30,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 29 conjunts are in the unsatisfiable core [2021-05-02 12:37:30,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:30,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:30,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607708295] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:30,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:30,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 30 [2021-05-02 12:37:30,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122651722] [2021-05-02 12:37:30,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-02 12:37:30,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:30,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-02 12:37:30,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=580, Unknown=0, NotChecked=0, Total=870 [2021-05-02 12:37:30,861 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 30 states, 30 states have (on average 1.8) internal successors, (54), 27 states have internal predecessors, (54), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 12:37:31,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:31,660 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2021-05-02 12:37:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-05-02 12:37:31,660 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.8) internal successors, (54), 27 states have internal predecessors, (54), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 51 [2021-05-02 12:37:31,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:31,661 INFO L225 Difference]: With dead ends: 60 [2021-05-02 12:37:31,661 INFO L226 Difference]: Without dead ends: 55 [2021-05-02 12:37:31,662 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 973.2ms TimeCoverageRelationStatistics Valid=858, Invalid=2004, Unknown=0, NotChecked=0, Total=2862 [2021-05-02 12:37:31,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-05-02 12:37:31,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-05-02 12:37:31,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 49 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:31,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-05-02 12:37:31,665 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 51 [2021-05-02 12:37:31,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:31,665 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-05-02 12:37:31,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 1.8) internal successors, (54), 27 states have internal predecessors, (54), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 12:37:31,666 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-05-02 12:37:31,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-02 12:37:31,666 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:31,666 INFO L523 BasicCegarLoop]: trace histogram [21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:31,883 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-05-02 12:37:31,884 INFO L428 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:31,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:31,884 INFO L82 PathProgramCache]: Analyzing trace with hash -156656640, now seen corresponding path program 21 times [2021-05-02 12:37:31,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:31,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535464349] [2021-05-02 12:37:31,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:32,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:32,157 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:32,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535464349] [2021-05-02 12:37:32,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535464349] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:32,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290348559] [2021-05-02 12:37:32,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:32,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-05-02 12:37:32,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:32,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 28 conjunts are in the unsatisfiable core [2021-05-02 12:37:32,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:32,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:32,356 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:32,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290348559] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:32,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:32,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 30 [2021-05-02 12:37:32,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66939643] [2021-05-02 12:37:32,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-02 12:37:32,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:32,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-02 12:37:32,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=558, Unknown=0, NotChecked=0, Total=870 [2021-05-02 12:37:32,357 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 30 states, 30 states have (on average 1.8333333333333333) internal successors, (55), 27 states have internal predecessors, (55), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:33,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:33,050 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2021-05-02 12:37:33,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-02 12:37:33,051 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.8333333333333333) internal successors, (55), 27 states have internal predecessors, (55), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2021-05-02 12:37:33,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:33,051 INFO L225 Difference]: With dead ends: 62 [2021-05-02 12:37:33,051 INFO L226 Difference]: Without dead ends: 57 [2021-05-02 12:37:33,052 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 833.1ms TimeCoverageRelationStatistics Valid=876, Invalid=1986, Unknown=0, NotChecked=0, Total=2862 [2021-05-02 12:37:33,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-05-02 12:37:33,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2021-05-02 12:37:33,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 51 states have internal predecessors, (52), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:33,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-05-02 12:37:33,055 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 53 [2021-05-02 12:37:33,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:33,056 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-05-02 12:37:33,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 1.8333333333333333) internal successors, (55), 27 states have internal predecessors, (55), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:33,056 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-05-02 12:37:33,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-02 12:37:33,056 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:33,056 INFO L523 BasicCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:33,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-05-02 12:37:33,273 INFO L428 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:33,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:33,273 INFO L82 PathProgramCache]: Analyzing trace with hash 876972732, now seen corresponding path program 22 times [2021-05-02 12:37:33,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:33,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693061017] [2021-05-02 12:37:33,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:33,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:33,602 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:33,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:33,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693061017] [2021-05-02 12:37:33,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693061017] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:33,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725516360] [2021-05-02 12:37:33,603 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:33,663 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:37:33,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:33,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 26 conjunts are in the unsatisfiable core [2021-05-02 12:37:33,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:33,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:33,825 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:33,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725516360] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:33,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:33,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 31 [2021-05-02 12:37:33,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160283295] [2021-05-02 12:37:33,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-02 12:37:33,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:33,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-02 12:37:33,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=593, Unknown=0, NotChecked=0, Total=930 [2021-05-02 12:37:33,828 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 31 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 28 states have internal predecessors, (57), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:34,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:34,607 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2021-05-02 12:37:34,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-05-02 12:37:34,608 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 28 states have internal predecessors, (57), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2021-05-02 12:37:34,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:34,608 INFO L225 Difference]: With dead ends: 64 [2021-05-02 12:37:34,608 INFO L226 Difference]: Without dead ends: 59 [2021-05-02 12:37:34,609 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 918.8ms TimeCoverageRelationStatistics Valid=949, Invalid=2131, Unknown=0, NotChecked=0, Total=3080 [2021-05-02 12:37:34,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-05-02 12:37:34,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2021-05-02 12:37:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 53 states have internal predecessors, (54), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:34,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2021-05-02 12:37:34,613 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 55 [2021-05-02 12:37:34,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:34,614 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2021-05-02 12:37:34,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 28 states have internal predecessors, (57), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:34,614 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2021-05-02 12:37:34,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-02 12:37:34,614 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:34,614 INFO L523 BasicCegarLoop]: trace histogram [23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:34,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:34,834 INFO L428 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:34,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:34,834 INFO L82 PathProgramCache]: Analyzing trace with hash 2057353848, now seen corresponding path program 23 times [2021-05-02 12:37:34,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:34,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966431140] [2021-05-02 12:37:34,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:35,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:35,190 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 529 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:35,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:35,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966431140] [2021-05-02 12:37:35,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966431140] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:35,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787260196] [2021-05-02 12:37:35,191 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:35,276 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-05-02 12:37:35,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:35,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 30 conjunts are in the unsatisfiable core [2021-05-02 12:37:35,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:35,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:35,474 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 529 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:35,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787260196] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:35,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:35,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 28] total 32 [2021-05-02 12:37:35,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791791679] [2021-05-02 12:37:35,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-02 12:37:35,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:35,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-02 12:37:35,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=629, Unknown=0, NotChecked=0, Total=992 [2021-05-02 12:37:35,477 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 32 states, 32 states have (on average 1.84375) internal successors, (59), 29 states have internal predecessors, (59), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:36,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:36,356 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2021-05-02 12:37:36,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-02 12:37:36,356 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.84375) internal successors, (59), 29 states have internal predecessors, (59), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2021-05-02 12:37:36,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:36,357 INFO L225 Difference]: With dead ends: 66 [2021-05-02 12:37:36,357 INFO L226 Difference]: Without dead ends: 61 [2021-05-02 12:37:36,358 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1062.8ms TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2021-05-02 12:37:36,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-05-02 12:37:36,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2021-05-02 12:37:36,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 states have internal predecessors, (56), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:36,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2021-05-02 12:37:36,363 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 57 [2021-05-02 12:37:36,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:36,363 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2021-05-02 12:37:36,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 1.84375) internal successors, (59), 29 states have internal predecessors, (59), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2021-05-02 12:37:36,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-02 12:37:36,363 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:36,363 INFO L523 BasicCegarLoop]: trace histogram [24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:36,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-05-02 12:37:36,582 INFO L428 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:36,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:36,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1762727116, now seen corresponding path program 24 times [2021-05-02 12:37:36,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:36,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833878373] [2021-05-02 12:37:36,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:36,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:36,968 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:36,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:36,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833878373] [2021-05-02 12:37:36,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833878373] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:36,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167143710] [2021-05-02 12:37:36,969 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:37,059 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-05-02 12:37:37,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:37,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 31 conjunts are in the unsatisfiable core [2021-05-02 12:37:37,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:37,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:37,226 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:37,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167143710] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:37,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:37,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29] total 33 [2021-05-02 12:37:37,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025384813] [2021-05-02 12:37:37,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-02 12:37:37,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:37,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-02 12:37:37,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=666, Unknown=0, NotChecked=0, Total=1056 [2021-05-02 12:37:37,228 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand has 33 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 30 states have internal predecessors, (61), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:38,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:38,129 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2021-05-02 12:37:38,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-02 12:37:38,129 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 30 states have internal predecessors, (61), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2021-05-02 12:37:38,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:38,130 INFO L225 Difference]: With dead ends: 68 [2021-05-02 12:37:38,130 INFO L226 Difference]: Without dead ends: 63 [2021-05-02 12:37:38,131 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 1098.9ms TimeCoverageRelationStatistics Valid=1104, Invalid=2436, Unknown=0, NotChecked=0, Total=3540 [2021-05-02 12:37:38,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-05-02 12:37:38,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2021-05-02 12:37:38,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 57 states have internal predecessors, (58), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:38,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2021-05-02 12:37:38,135 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 59 [2021-05-02 12:37:38,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:38,136 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2021-05-02 12:37:38,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 30 states have internal predecessors, (61), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:38,136 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2021-05-02 12:37:38,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-02 12:37:38,136 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:38,136 INFO L523 BasicCegarLoop]: trace histogram [25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:38,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:38,356 INFO L428 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:38,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:38,357 INFO L82 PathProgramCache]: Analyzing trace with hash -663495440, now seen corresponding path program 25 times [2021-05-02 12:37:38,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:38,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917280687] [2021-05-02 12:37:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:38,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:38,770 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 625 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:38,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:38,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917280687] [2021-05-02 12:37:38,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917280687] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:38,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332016599] [2021-05-02 12:37:38,771 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:38,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 32 conjunts are in the unsatisfiable core [2021-05-02 12:37:38,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:38,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:38,954 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 625 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:38,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332016599] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:38,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:38,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 34 [2021-05-02 12:37:38,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181560343] [2021-05-02 12:37:38,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-05-02 12:37:38,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:38,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-05-02 12:37:38,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=704, Unknown=0, NotChecked=0, Total=1122 [2021-05-02 12:37:38,956 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand has 34 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 31 states have internal predecessors, (63), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:39,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:39,879 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2021-05-02 12:37:39,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-02 12:37:39,884 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 31 states have internal predecessors, (63), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2021-05-02 12:37:39,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:39,884 INFO L225 Difference]: With dead ends: 70 [2021-05-02 12:37:39,884 INFO L226 Difference]: Without dead ends: 65 [2021-05-02 12:37:39,885 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 1181.6ms TimeCoverageRelationStatistics Valid=1186, Invalid=2596, Unknown=0, NotChecked=0, Total=3782 [2021-05-02 12:37:39,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-05-02 12:37:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2021-05-02 12:37:39,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 59 states have (on average 1.0169491525423728) internal successors, (60), 59 states have internal predecessors, (60), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:39,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2021-05-02 12:37:39,889 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 61 [2021-05-02 12:37:39,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:39,889 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2021-05-02 12:37:39,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 31 states have internal predecessors, (63), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:39,889 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2021-05-02 12:37:39,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-02 12:37:39,889 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:39,889 INFO L523 BasicCegarLoop]: trace histogram [26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:40,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-05-02 12:37:40,105 INFO L428 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:40,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:40,105 INFO L82 PathProgramCache]: Analyzing trace with hash -863809620, now seen corresponding path program 26 times [2021-05-02 12:37:40,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:40,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950051308] [2021-05-02 12:37:40,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:40,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:40,506 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:40,507 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:40,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950051308] [2021-05-02 12:37:40,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950051308] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:40,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604369553] [2021-05-02 12:37:40,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:40,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:37:40,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:40,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 33 conjunts are in the unsatisfiable core [2021-05-02 12:37:40,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:40,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:40,705 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:40,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604369553] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:40,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:40,706 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31] total 35 [2021-05-02 12:37:40,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009970199] [2021-05-02 12:37:40,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-02 12:37:40,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:40,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-02 12:37:40,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=743, Unknown=0, NotChecked=0, Total=1190 [2021-05-02 12:37:40,706 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 35 states, 35 states have (on average 1.8571428571428572) internal successors, (65), 32 states have internal predecessors, (65), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:41,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:41,637 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2021-05-02 12:37:41,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-02 12:37:41,638 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.8571428571428572) internal successors, (65), 32 states have internal predecessors, (65), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2021-05-02 12:37:41,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:41,639 INFO L225 Difference]: With dead ends: 72 [2021-05-02 12:37:41,639 INFO L226 Difference]: Without dead ends: 67 [2021-05-02 12:37:41,640 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 1201.5ms TimeCoverageRelationStatistics Valid=1271, Invalid=2761, Unknown=0, NotChecked=0, Total=4032 [2021-05-02 12:37:41,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-05-02 12:37:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2021-05-02 12:37:41,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 61 states have (on average 1.0163934426229508) internal successors, (62), 61 states have internal predecessors, (62), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:41,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2021-05-02 12:37:41,643 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 63 [2021-05-02 12:37:41,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:41,644 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2021-05-02 12:37:41,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 1.8571428571428572) internal successors, (65), 32 states have internal predecessors, (65), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:41,644 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2021-05-02 12:37:41,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-05-02 12:37:41,644 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:41,644 INFO L523 BasicCegarLoop]: trace histogram [27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:41,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-05-02 12:37:41,868 INFO L428 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:41,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:41,868 INFO L82 PathProgramCache]: Analyzing trace with hash -92208280, now seen corresponding path program 27 times [2021-05-02 12:37:41,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:41,868 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444311332] [2021-05-02 12:37:41,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:42,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 0 proven. 729 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:42,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:42,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444311332] [2021-05-02 12:37:42,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444311332] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:42,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650598170] [2021-05-02 12:37:42,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:42,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-05-02 12:37:42,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:42,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 34 conjunts are in the unsatisfiable core [2021-05-02 12:37:42,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:42,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 0 proven. 729 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:42,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650598170] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:42,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:42,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32] total 36 [2021-05-02 12:37:42,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319922867] [2021-05-02 12:37:42,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-02 12:37:42,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:42,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-02 12:37:42,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=477, Invalid=783, Unknown=0, NotChecked=0, Total=1260 [2021-05-02 12:37:42,525 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand has 36 states, 36 states have (on average 1.8611111111111112) internal successors, (67), 33 states have internal predecessors, (67), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:43,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:43,509 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2021-05-02 12:37:43,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-02 12:37:43,509 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.8611111111111112) internal successors, (67), 33 states have internal predecessors, (67), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2021-05-02 12:37:43,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:43,510 INFO L225 Difference]: With dead ends: 74 [2021-05-02 12:37:43,510 INFO L226 Difference]: Without dead ends: 69 [2021-05-02 12:37:43,512 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 1215.9ms TimeCoverageRelationStatistics Valid=1359, Invalid=2931, Unknown=0, NotChecked=0, Total=4290 [2021-05-02 12:37:43,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-05-02 12:37:43,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2021-05-02 12:37:43,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 63 states have (on average 1.0158730158730158) internal successors, (64), 63 states have internal predecessors, (64), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:43,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2021-05-02 12:37:43,515 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 65 [2021-05-02 12:37:43,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:43,515 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2021-05-02 12:37:43,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 1.8611111111111112) internal successors, (67), 33 states have internal predecessors, (67), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:43,516 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2021-05-02 12:37:43,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-05-02 12:37:43,516 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:43,516 INFO L523 BasicCegarLoop]: trace histogram [28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:43,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-05-02 12:37:43,733 INFO L428 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:43,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:43,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1612662748, now seen corresponding path program 28 times [2021-05-02 12:37:43,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:43,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108780050] [2021-05-02 12:37:43,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:44,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:44,155 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:44,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:44,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108780050] [2021-05-02 12:37:44,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108780050] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:44,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985585703] [2021-05-02 12:37:44,156 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:44,284 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:37:44,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:44,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 32 conjunts are in the unsatisfiable core [2021-05-02 12:37:44,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:44,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,425 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:44,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985585703] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:44,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:44,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33] total 37 [2021-05-02 12:37:44,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824980136] [2021-05-02 12:37:44,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-05-02 12:37:44,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:44,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-05-02 12:37:44,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=824, Unknown=0, NotChecked=0, Total=1332 [2021-05-02 12:37:44,427 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand has 37 states, 37 states have (on average 1.864864864864865) internal successors, (69), 34 states have internal predecessors, (69), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:45,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:45,449 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2021-05-02 12:37:45,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-02 12:37:45,449 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.864864864864865) internal successors, (69), 34 states have internal predecessors, (69), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2021-05-02 12:37:45,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:45,450 INFO L225 Difference]: With dead ends: 76 [2021-05-02 12:37:45,450 INFO L226 Difference]: Without dead ends: 71 [2021-05-02 12:37:45,450 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 1285.1ms TimeCoverageRelationStatistics Valid=1450, Invalid=3106, Unknown=0, NotChecked=0, Total=4556 [2021-05-02 12:37:45,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-05-02 12:37:45,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2021-05-02 12:37:45,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2021-05-02 12:37:45,454 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 67 [2021-05-02 12:37:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:45,454 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2021-05-02 12:37:45,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 1.864864864864865) internal successors, (69), 34 states have internal predecessors, (69), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:45,454 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2021-05-02 12:37:45,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-05-02 12:37:45,454 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:45,454 INFO L523 BasicCegarLoop]: trace histogram [29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:45,670 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-05-02 12:37:45,671 INFO L428 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:45,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:45,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1814441440, now seen corresponding path program 29 times [2021-05-02 12:37:45,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:45,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973346309] [2021-05-02 12:37:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:46,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:46,115 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 841 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:46,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:46,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973346309] [2021-05-02 12:37:46,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973346309] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:46,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606246590] [2021-05-02 12:37:46,115 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:46,205 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-05-02 12:37:46,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:46,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 36 conjunts are in the unsatisfiable core [2021-05-02 12:37:46,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:46,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,352 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 841 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:46,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606246590] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:46,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:46,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 34] total 38 [2021-05-02 12:37:46,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981773471] [2021-05-02 12:37:46,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-05-02 12:37:46,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:46,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-05-02 12:37:46,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=540, Invalid=866, Unknown=0, NotChecked=0, Total=1406 [2021-05-02 12:37:46,355 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand has 38 states, 38 states have (on average 1.868421052631579) internal successors, (71), 35 states have internal predecessors, (71), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:47,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:47,436 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2021-05-02 12:37:47,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-02 12:37:47,436 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 1.868421052631579) internal successors, (71), 35 states have internal predecessors, (71), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2021-05-02 12:37:47,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:47,437 INFO L225 Difference]: With dead ends: 78 [2021-05-02 12:37:47,437 INFO L226 Difference]: Without dead ends: 73 [2021-05-02 12:37:47,438 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 1350.6ms TimeCoverageRelationStatistics Valid=1544, Invalid=3286, Unknown=0, NotChecked=0, Total=4830 [2021-05-02 12:37:47,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-05-02 12:37:47,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2021-05-02 12:37:47,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 67 states have (on average 1.0149253731343284) internal successors, (68), 67 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:47,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2021-05-02 12:37:47,441 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 69 [2021-05-02 12:37:47,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:47,442 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2021-05-02 12:37:47,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 1.868421052631579) internal successors, (71), 35 states have internal predecessors, (71), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2021-05-02 12:37:47,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-05-02 12:37:47,442 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:47,442 INFO L523 BasicCegarLoop]: trace histogram [30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:47,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:47,658 INFO L428 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:47,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:47,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1021650076, now seen corresponding path program 30 times [2021-05-02 12:37:47,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:47,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734284] [2021-05-02 12:37:47,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:48,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:48,135 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:48,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734284] [2021-05-02 12:37:48,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734284] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:48,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31401593] [2021-05-02 12:37:48,135 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:48,223 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-05-02 12:37:48,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:48,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 37 conjunts are in the unsatisfiable core [2021-05-02 12:37:48,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:48,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,373 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:48,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31401593] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:48,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:48,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 35] total 39 [2021-05-02 12:37:48,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521414004] [2021-05-02 12:37:48,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-05-02 12:37:48,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:48,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-05-02 12:37:48,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=573, Invalid=909, Unknown=0, NotChecked=0, Total=1482 [2021-05-02 12:37:48,375 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand has 39 states, 39 states have (on average 1.8717948717948718) internal successors, (73), 36 states have internal predecessors, (73), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:49,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:49,493 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2021-05-02 12:37:49,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-02 12:37:49,493 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 1.8717948717948718) internal successors, (73), 36 states have internal predecessors, (73), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2021-05-02 12:37:49,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:49,494 INFO L225 Difference]: With dead ends: 80 [2021-05-02 12:37:49,494 INFO L226 Difference]: Without dead ends: 75 [2021-05-02 12:37:49,495 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 834 ImplicationChecksByTransitivity, 1442.8ms TimeCoverageRelationStatistics Valid=1641, Invalid=3471, Unknown=0, NotChecked=0, Total=5112 [2021-05-02 12:37:49,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-05-02 12:37:49,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2021-05-02 12:37:49,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 69 states have (on average 1.0144927536231885) internal successors, (70), 69 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:49,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2021-05-02 12:37:49,498 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 71 [2021-05-02 12:37:49,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:49,499 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2021-05-02 12:37:49,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 1.8717948717948718) internal successors, (73), 36 states have internal predecessors, (73), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:49,499 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2021-05-02 12:37:49,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-05-02 12:37:49,499 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:49,499 INFO L523 BasicCegarLoop]: trace histogram [31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:49,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:49,721 INFO L428 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:49,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:49,721 INFO L82 PathProgramCache]: Analyzing trace with hash -641639336, now seen corresponding path program 31 times [2021-05-02 12:37:49,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:49,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176187007] [2021-05-02 12:37:49,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:50,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 0 proven. 961 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:50,241 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:50,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176187007] [2021-05-02 12:37:50,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176187007] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:50,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828334820] [2021-05-02 12:37:50,241 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:50,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 38 conjunts are in the unsatisfiable core [2021-05-02 12:37:50,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:50,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,497 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 0 proven. 961 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:50,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828334820] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:50,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:50,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 36] total 40 [2021-05-02 12:37:50,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328702168] [2021-05-02 12:37:50,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-02 12:37:50,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:50,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-02 12:37:50,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=607, Invalid=953, Unknown=0, NotChecked=0, Total=1560 [2021-05-02 12:37:50,499 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand has 40 states, 40 states have (on average 1.875) internal successors, (75), 37 states have internal predecessors, (75), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:51,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:51,631 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2021-05-02 12:37:51,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-02 12:37:51,631 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 1.875) internal successors, (75), 37 states have internal predecessors, (75), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2021-05-02 12:37:51,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:51,632 INFO L225 Difference]: With dead ends: 82 [2021-05-02 12:37:51,632 INFO L226 Difference]: Without dead ends: 77 [2021-05-02 12:37:51,633 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 1416.7ms TimeCoverageRelationStatistics Valid=1741, Invalid=3661, Unknown=0, NotChecked=0, Total=5402 [2021-05-02 12:37:51,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-05-02 12:37:51,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2021-05-02 12:37:51,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 71 states have (on average 1.0140845070422535) internal successors, (72), 71 states have internal predecessors, (72), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:51,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2021-05-02 12:37:51,636 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 73 [2021-05-02 12:37:51,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:51,637 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2021-05-02 12:37:51,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 1.875) internal successors, (75), 37 states have internal predecessors, (75), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:51,637 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2021-05-02 12:37:51,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-05-02 12:37:51,637 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:51,637 INFO L523 BasicCegarLoop]: trace histogram [32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:51,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:51,841 INFO L428 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:51,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:51,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1334930156, now seen corresponding path program 32 times [2021-05-02 12:37:51,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:51,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141514797] [2021-05-02 12:37:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:52,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 0 proven. 1024 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:52,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:52,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141514797] [2021-05-02 12:37:52,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141514797] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:52,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029077057] [2021-05-02 12:37:52,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:52,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:37:52,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:52,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 39 conjunts are in the unsatisfiable core [2021-05-02 12:37:52,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:52,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:52,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 0 proven. 1024 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:52,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029077057] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:52,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:52,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 37] total 41 [2021-05-02 12:37:52,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985395617] [2021-05-02 12:37:52,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-05-02 12:37:52,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:52,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-05-02 12:37:52,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=642, Invalid=998, Unknown=0, NotChecked=0, Total=1640 [2021-05-02 12:37:52,784 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand has 41 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 38 states have internal predecessors, (77), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:54,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:54,045 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2021-05-02 12:37:54,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-02 12:37:54,045 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 38 states have internal predecessors, (77), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2021-05-02 12:37:54,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:54,046 INFO L225 Difference]: With dead ends: 84 [2021-05-02 12:37:54,046 INFO L226 Difference]: Without dead ends: 79 [2021-05-02 12:37:54,047 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 1680.5ms TimeCoverageRelationStatistics Valid=1844, Invalid=3856, Unknown=0, NotChecked=0, Total=5700 [2021-05-02 12:37:54,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-05-02 12:37:54,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2021-05-02 12:37:54,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 73 states have (on average 1.0136986301369864) internal successors, (74), 73 states have internal predecessors, (74), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:54,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2021-05-02 12:37:54,051 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 75 [2021-05-02 12:37:54,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:54,051 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2021-05-02 12:37:54,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 38 states have internal predecessors, (77), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:54,051 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2021-05-02 12:37:54,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-05-02 12:37:54,052 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:54,052 INFO L523 BasicCegarLoop]: trace histogram [33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:54,270 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-05-02 12:37:54,270 INFO L428 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:54,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:54,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1867477296, now seen corresponding path program 33 times [2021-05-02 12:37:54,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:54,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198626243] [2021-05-02 12:37:54,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:54,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:54,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:54,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:54,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198626243] [2021-05-02 12:37:54,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198626243] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:54,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237659673] [2021-05-02 12:37:54,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:55,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-05-02 12:37:55,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:55,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 40 conjunts are in the unsatisfiable core [2021-05-02 12:37:55,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:55,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:55,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:55,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237659673] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:55,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:55,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 38] total 42 [2021-05-02 12:37:55,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847512845] [2021-05-02 12:37:55,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-05-02 12:37:55,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:55,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-05-02 12:37:55,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=678, Invalid=1044, Unknown=0, NotChecked=0, Total=1722 [2021-05-02 12:37:55,262 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand has 42 states, 42 states have (on average 1.880952380952381) internal successors, (79), 39 states have internal predecessors, (79), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:56,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:56,585 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2021-05-02 12:37:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-02 12:37:56,586 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 1.880952380952381) internal successors, (79), 39 states have internal predecessors, (79), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2021-05-02 12:37:56,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:56,587 INFO L225 Difference]: With dead ends: 86 [2021-05-02 12:37:56,587 INFO L226 Difference]: Without dead ends: 81 [2021-05-02 12:37:56,589 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 1751.3ms TimeCoverageRelationStatistics Valid=1950, Invalid=4056, Unknown=0, NotChecked=0, Total=6006 [2021-05-02 12:37:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-05-02 12:37:56,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2021-05-02 12:37:56,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.0133333333333334) internal successors, (76), 75 states have internal predecessors, (76), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:56,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2021-05-02 12:37:56,592 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 77 [2021-05-02 12:37:56,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:56,592 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2021-05-02 12:37:56,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 1.880952380952381) internal successors, (79), 39 states have internal predecessors, (79), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:56,593 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2021-05-02 12:37:56,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-05-02 12:37:56,593 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:56,593 INFO L523 BasicCegarLoop]: trace histogram [34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:56,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:56,810 INFO L428 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:56,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:56,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1750796684, now seen corresponding path program 34 times [2021-05-02 12:37:56,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:56,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411721716] [2021-05-02 12:37:56,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:57,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 1156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:57,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:57,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411721716] [2021-05-02 12:37:57,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411721716] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:57,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498881684] [2021-05-02 12:37:57,428 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:57,515 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:37:57,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:57,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 38 conjunts are in the unsatisfiable core [2021-05-02 12:37:57,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:57,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:57,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 1156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:57,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498881684] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:57,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:57,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 39] total 43 [2021-05-02 12:37:57,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294617538] [2021-05-02 12:37:57,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-05-02 12:37:57,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:57,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-05-02 12:37:57,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=715, Invalid=1091, Unknown=0, NotChecked=0, Total=1806 [2021-05-02 12:37:57,684 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand has 43 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 40 states have internal predecessors, (81), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:59,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:59,012 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2021-05-02 12:37:59,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-02 12:37:59,012 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 40 states have internal predecessors, (81), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 79 [2021-05-02 12:37:59,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:59,013 INFO L225 Difference]: With dead ends: 88 [2021-05-02 12:37:59,013 INFO L226 Difference]: Without dead ends: 83 [2021-05-02 12:37:59,013 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 1798.1ms TimeCoverageRelationStatistics Valid=2059, Invalid=4261, Unknown=0, NotChecked=0, Total=6320 [2021-05-02 12:37:59,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-05-02 12:37:59,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2021-05-02 12:37:59,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 77 states have (on average 1.0129870129870129) internal successors, (78), 77 states have internal predecessors, (78), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:59,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2021-05-02 12:37:59,017 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 79 [2021-05-02 12:37:59,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:59,017 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2021-05-02 12:37:59,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 40 states have internal predecessors, (81), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:37:59,017 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2021-05-02 12:37:59,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-05-02 12:37:59,018 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:59,018 INFO L523 BasicCegarLoop]: trace histogram [35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:59,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-05-02 12:37:59,233 INFO L428 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:59,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:59,233 INFO L82 PathProgramCache]: Analyzing trace with hash -11418296, now seen corresponding path program 35 times [2021-05-02 12:37:59,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:59,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886531402] [2021-05-02 12:37:59,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:59,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:37:59,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:59,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886531402] [2021-05-02 12:37:59,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886531402] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:59,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846849391] [2021-05-02 12:37:59,870 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:37:59,952 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-05-02 12:37:59,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:59,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 42 conjunts are in the unsatisfiable core [2021-05-02 12:37:59,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:59,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:59,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:59,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:59,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:59,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:59,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:59,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:59,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:59,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:59,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:00,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:00,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846849391] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:00,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:00,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40] total 44 [2021-05-02 12:38:00,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137200584] [2021-05-02 12:38:00,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-05-02 12:38:00,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:00,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-05-02 12:38:00,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=753, Invalid=1139, Unknown=0, NotChecked=0, Total=1892 [2021-05-02 12:38:00,187 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand has 44 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 41 states have internal predecessors, (83), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:01,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:01,486 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2021-05-02 12:38:01,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-02 12:38:01,487 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 41 states have internal predecessors, (83), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2021-05-02 12:38:01,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:01,487 INFO L225 Difference]: With dead ends: 90 [2021-05-02 12:38:01,487 INFO L226 Difference]: Without dead ends: 85 [2021-05-02 12:38:01,488 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1059 ImplicationChecksByTransitivity, 1727.2ms TimeCoverageRelationStatistics Valid=2171, Invalid=4471, Unknown=0, NotChecked=0, Total=6642 [2021-05-02 12:38:01,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-05-02 12:38:01,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2021-05-02 12:38:01,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 79 states have (on average 1.0126582278481013) internal successors, (80), 79 states have internal predecessors, (80), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:01,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2021-05-02 12:38:01,493 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 81 [2021-05-02 12:38:01,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:01,493 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2021-05-02 12:38:01,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 41 states have internal predecessors, (83), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:01,493 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2021-05-02 12:38:01,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-05-02 12:38:01,494 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:01,494 INFO L523 BasicCegarLoop]: trace histogram [36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:01,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:01,709 INFO L428 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:01,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:01,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1282899452, now seen corresponding path program 36 times [2021-05-02 12:38:01,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:01,710 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185620772] [2021-05-02 12:38:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:02,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:02,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:02,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:02,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185620772] [2021-05-02 12:38:02,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185620772] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:02,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049295673] [2021-05-02 12:38:02,457 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:02,601 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-05-02 12:38:02,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:02,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 43 conjunts are in the unsatisfiable core [2021-05-02 12:38:02,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:02,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:02,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049295673] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:02,819 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:02,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41] total 45 [2021-05-02 12:38:02,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763519190] [2021-05-02 12:38:02,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-05-02 12:38:02,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:02,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-05-02 12:38:02,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=792, Invalid=1188, Unknown=0, NotChecked=0, Total=1980 [2021-05-02 12:38:02,820 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand has 45 states, 45 states have (on average 1.8888888888888888) internal successors, (85), 42 states have internal predecessors, (85), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:04,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:04,439 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2021-05-02 12:38:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-05-02 12:38:04,440 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 1.8888888888888888) internal successors, (85), 42 states have internal predecessors, (85), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2021-05-02 12:38:04,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:04,441 INFO L225 Difference]: With dead ends: 92 [2021-05-02 12:38:04,441 INFO L226 Difference]: Without dead ends: 87 [2021-05-02 12:38:04,441 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1107 ImplicationChecksByTransitivity, 2112.1ms TimeCoverageRelationStatistics Valid=2286, Invalid=4686, Unknown=0, NotChecked=0, Total=6972 [2021-05-02 12:38:04,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-05-02 12:38:04,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2021-05-02 12:38:04,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 81 states have (on average 1.0123456790123457) internal successors, (82), 81 states have internal predecessors, (82), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:04,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2021-05-02 12:38:04,445 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 83 [2021-05-02 12:38:04,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:04,446 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2021-05-02 12:38:04,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 1.8888888888888888) internal successors, (85), 42 states have internal predecessors, (85), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:04,446 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2021-05-02 12:38:04,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-05-02 12:38:04,446 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:04,446 INFO L523 BasicCegarLoop]: trace histogram [37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:04,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-05-02 12:38:04,665 INFO L428 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:04,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:04,666 INFO L82 PathProgramCache]: Analyzing trace with hash 889388992, now seen corresponding path program 37 times [2021-05-02 12:38:04,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:04,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320595175] [2021-05-02 12:38:04,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:05,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:05,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1369 backedges. 0 proven. 1369 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:05,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:05,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320595175] [2021-05-02 12:38:05,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320595175] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:05,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316224895] [2021-05-02 12:38:05,430 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:05,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 44 conjunts are in the unsatisfiable core [2021-05-02 12:38:05,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:05,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:05,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1369 backedges. 0 proven. 1369 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:05,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316224895] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:05,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:05,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 42] total 46 [2021-05-02 12:38:05,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270770015] [2021-05-02 12:38:05,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-05-02 12:38:05,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:05,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-05-02 12:38:05,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=832, Invalid=1238, Unknown=0, NotChecked=0, Total=2070 [2021-05-02 12:38:05,745 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand has 46 states, 46 states have (on average 1.891304347826087) internal successors, (87), 43 states have internal predecessors, (87), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:07,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:07,349 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2021-05-02 12:38:07,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-02 12:38:07,350 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.891304347826087) internal successors, (87), 43 states have internal predecessors, (87), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2021-05-02 12:38:07,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:07,355 INFO L225 Difference]: With dead ends: 94 [2021-05-02 12:38:07,355 INFO L226 Difference]: Without dead ends: 89 [2021-05-02 12:38:07,357 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1156 ImplicationChecksByTransitivity, 2101.4ms TimeCoverageRelationStatistics Valid=2404, Invalid=4906, Unknown=0, NotChecked=0, Total=7310 [2021-05-02 12:38:07,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-05-02 12:38:07,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2021-05-02 12:38:07,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 83 states have (on average 1.0120481927710843) internal successors, (84), 83 states have internal predecessors, (84), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:07,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2021-05-02 12:38:07,376 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 85 [2021-05-02 12:38:07,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:07,376 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2021-05-02 12:38:07,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.891304347826087) internal successors, (87), 43 states have internal predecessors, (87), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:07,381 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2021-05-02 12:38:07,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-05-02 12:38:07,381 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:07,381 INFO L523 BasicCegarLoop]: trace histogram [38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:07,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-05-02 12:38:07,598 INFO L428 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:07,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:07,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1104477820, now seen corresponding path program 38 times [2021-05-02 12:38:07,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:07,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146484032] [2021-05-02 12:38:07,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:08,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:08,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 0 proven. 1444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:08,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:08,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146484032] [2021-05-02 12:38:08,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146484032] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:08,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618728662] [2021-05-02 12:38:08,347 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:08,424 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:38:08,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:08,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 45 conjunts are in the unsatisfiable core [2021-05-02 12:38:08,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:08,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:08,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 0 proven. 1444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:08,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618728662] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:08,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:08,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 43] total 47 [2021-05-02 12:38:08,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827141406] [2021-05-02 12:38:08,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-05-02 12:38:08,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:08,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-05-02 12:38:08,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=873, Invalid=1289, Unknown=0, NotChecked=0, Total=2162 [2021-05-02 12:38:08,654 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand has 47 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 44 states have internal predecessors, (89), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:10,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:10,333 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2021-05-02 12:38:10,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-05-02 12:38:10,336 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 44 states have internal predecessors, (89), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2021-05-02 12:38:10,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:10,336 INFO L225 Difference]: With dead ends: 96 [2021-05-02 12:38:10,336 INFO L226 Difference]: Without dead ends: 91 [2021-05-02 12:38:10,337 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 2186.2ms TimeCoverageRelationStatistics Valid=2525, Invalid=5131, Unknown=0, NotChecked=0, Total=7656 [2021-05-02 12:38:10,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-05-02 12:38:10,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2021-05-02 12:38:10,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:10,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2021-05-02 12:38:10,341 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 87 [2021-05-02 12:38:10,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:10,341 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2021-05-02 12:38:10,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 44 states have internal predecessors, (89), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:10,341 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2021-05-02 12:38:10,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-05-02 12:38:10,341 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:10,341 INFO L523 BasicCegarLoop]: trace histogram [39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:10,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-05-02 12:38:10,558 INFO L428 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:10,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:10,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1646411320, now seen corresponding path program 39 times [2021-05-02 12:38:10,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:10,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483309256] [2021-05-02 12:38:10,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:11,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:11,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 0 proven. 1521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:11,269 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:11,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483309256] [2021-05-02 12:38:11,269 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483309256] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:11,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307349628] [2021-05-02 12:38:11,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:11,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-05-02 12:38:11,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:11,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 46 conjunts are in the unsatisfiable core [2021-05-02 12:38:11,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:11,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 0 proven. 1521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:11,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307349628] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:11,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:11,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 44] total 48 [2021-05-02 12:38:11,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136490789] [2021-05-02 12:38:11,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-05-02 12:38:11,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:11,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-05-02 12:38:11,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=915, Invalid=1341, Unknown=0, NotChecked=0, Total=2256 [2021-05-02 12:38:11,639 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand has 48 states, 48 states have (on average 1.8958333333333333) internal successors, (91), 45 states have internal predecessors, (91), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:13,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:13,695 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2021-05-02 12:38:13,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-05-02 12:38:13,695 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.8958333333333333) internal successors, (91), 45 states have internal predecessors, (91), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2021-05-02 12:38:13,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:13,696 INFO L225 Difference]: With dead ends: 98 [2021-05-02 12:38:13,696 INFO L226 Difference]: Without dead ends: 93 [2021-05-02 12:38:13,696 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 2556.9ms TimeCoverageRelationStatistics Valid=2649, Invalid=5361, Unknown=0, NotChecked=0, Total=8010 [2021-05-02 12:38:13,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-05-02 12:38:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2021-05-02 12:38:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 87 states have (on average 1.0114942528735633) internal successors, (88), 87 states have internal predecessors, (88), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:13,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2021-05-02 12:38:13,700 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 89 [2021-05-02 12:38:13,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:13,700 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2021-05-02 12:38:13,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 1.8958333333333333) internal successors, (91), 45 states have internal predecessors, (91), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:13,700 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2021-05-02 12:38:13,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-05-02 12:38:13,701 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:13,701 INFO L523 BasicCegarLoop]: trace histogram [40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:13,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-05-02 12:38:13,918 INFO L428 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:13,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:13,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1541505292, now seen corresponding path program 40 times [2021-05-02 12:38:13,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:13,919 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473754963] [2021-05-02 12:38:13,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:14,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 0 proven. 1600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:14,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:14,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473754963] [2021-05-02 12:38:14,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473754963] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:14,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133164865] [2021-05-02 12:38:14,663 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:14,736 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:38:14,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:14,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 44 conjunts are in the unsatisfiable core [2021-05-02 12:38:14,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:14,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 0 proven. 1600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:14,972 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133164865] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:14,972 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:14,972 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 45] total 49 [2021-05-02 12:38:14,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994155480] [2021-05-02 12:38:14,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-05-02 12:38:14,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:14,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-05-02 12:38:14,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=958, Invalid=1394, Unknown=0, NotChecked=0, Total=2352 [2021-05-02 12:38:14,989 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand has 49 states, 49 states have (on average 1.8979591836734695) internal successors, (93), 46 states have internal predecessors, (93), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:17,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:17,118 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2021-05-02 12:38:17,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-05-02 12:38:17,118 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.8979591836734695) internal successors, (93), 46 states have internal predecessors, (93), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2021-05-02 12:38:17,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:17,119 INFO L225 Difference]: With dead ends: 100 [2021-05-02 12:38:17,119 INFO L226 Difference]: Without dead ends: 95 [2021-05-02 12:38:17,120 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1309 ImplicationChecksByTransitivity, 2516.5ms TimeCoverageRelationStatistics Valid=2776, Invalid=5596, Unknown=0, NotChecked=0, Total=8372 [2021-05-02 12:38:17,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-05-02 12:38:17,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2021-05-02 12:38:17,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 89 states have (on average 1.0112359550561798) internal successors, (90), 89 states have internal predecessors, (90), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:17,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2021-05-02 12:38:17,125 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 91 [2021-05-02 12:38:17,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:17,125 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2021-05-02 12:38:17,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 1.8979591836734695) internal successors, (93), 46 states have internal predecessors, (93), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:17,125 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2021-05-02 12:38:17,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-05-02 12:38:17,125 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:17,125 INFO L523 BasicCegarLoop]: trace histogram [41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:17,345 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:17,345 INFO L428 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:17,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:17,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1477279920, now seen corresponding path program 41 times [2021-05-02 12:38:17,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:17,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191783319] [2021-05-02 12:38:17,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:18,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:18,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1681 backedges. 0 proven. 1681 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:18,228 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:18,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191783319] [2021-05-02 12:38:18,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191783319] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:18,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994064780] [2021-05-02 12:38:18,229 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:18,361 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-05-02 12:38:18,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:18,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 48 conjunts are in the unsatisfiable core [2021-05-02 12:38:18,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:18,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:18,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1681 backedges. 0 proven. 1681 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:18,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994064780] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:18,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:18,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 46] total 50 [2021-05-02 12:38:18,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475084364] [2021-05-02 12:38:18,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-05-02 12:38:18,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:18,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-05-02 12:38:18,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1002, Invalid=1448, Unknown=0, NotChecked=0, Total=2450 [2021-05-02 12:38:18,618 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand has 50 states, 50 states have (on average 1.9) internal successors, (95), 47 states have internal predecessors, (95), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:20,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:20,603 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2021-05-02 12:38:20,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-02 12:38:20,603 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 1.9) internal successors, (95), 47 states have internal predecessors, (95), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2021-05-02 12:38:20,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:20,604 INFO L225 Difference]: With dead ends: 102 [2021-05-02 12:38:20,604 INFO L226 Difference]: Without dead ends: 97 [2021-05-02 12:38:20,604 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1362 ImplicationChecksByTransitivity, 2593.4ms TimeCoverageRelationStatistics Valid=2906, Invalid=5836, Unknown=0, NotChecked=0, Total=8742 [2021-05-02 12:38:20,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-05-02 12:38:20,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2021-05-02 12:38:20,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 91 states have (on average 1.010989010989011) internal successors, (92), 91 states have internal predecessors, (92), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:20,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2021-05-02 12:38:20,609 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 93 [2021-05-02 12:38:20,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:20,609 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2021-05-02 12:38:20,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 1.9) internal successors, (95), 47 states have internal predecessors, (95), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:20,610 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2021-05-02 12:38:20,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-05-02 12:38:20,610 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:20,610 INFO L523 BasicCegarLoop]: trace histogram [42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:20,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-05-02 12:38:20,831 INFO L428 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:20,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:20,831 INFO L82 PathProgramCache]: Analyzing trace with hash -868023444, now seen corresponding path program 42 times [2021-05-02 12:38:20,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:20,831 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015998655] [2021-05-02 12:38:20,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:21,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:21,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 0 proven. 1764 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:21,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:21,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015998655] [2021-05-02 12:38:21,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015998655] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:21,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004233165] [2021-05-02 12:38:21,858 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:22,038 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-05-02 12:38:22,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:22,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 49 conjunts are in the unsatisfiable core [2021-05-02 12:38:22,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:22,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:22,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 0 proven. 1764 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:22,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004233165] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:22,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:22,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 47] total 51 [2021-05-02 12:38:22,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841655998] [2021-05-02 12:38:22,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-05-02 12:38:22,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:22,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-05-02 12:38:22,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1047, Invalid=1503, Unknown=0, NotChecked=0, Total=2550 [2021-05-02 12:38:22,346 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand has 51 states, 51 states have (on average 1.9019607843137254) internal successors, (97), 48 states have internal predecessors, (97), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:24,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:24,245 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2021-05-02 12:38:24,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-05-02 12:38:24,246 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 1.9019607843137254) internal successors, (97), 48 states have internal predecessors, (97), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2021-05-02 12:38:24,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:24,247 INFO L225 Difference]: With dead ends: 104 [2021-05-02 12:38:24,247 INFO L226 Difference]: Without dead ends: 99 [2021-05-02 12:38:24,248 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1416 ImplicationChecksByTransitivity, 2706.0ms TimeCoverageRelationStatistics Valid=3039, Invalid=6081, Unknown=0, NotChecked=0, Total=9120 [2021-05-02 12:38:24,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-05-02 12:38:24,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2021-05-02 12:38:24,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 93 states have (on average 1.010752688172043) internal successors, (94), 93 states have internal predecessors, (94), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:24,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2021-05-02 12:38:24,254 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 95 [2021-05-02 12:38:24,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:24,254 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2021-05-02 12:38:24,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 51 states, 51 states have (on average 1.9019607843137254) internal successors, (97), 48 states have internal predecessors, (97), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:24,254 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2021-05-02 12:38:24,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-05-02 12:38:24,255 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:24,255 INFO L523 BasicCegarLoop]: trace histogram [43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:24,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:24,481 INFO L428 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:24,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:24,481 INFO L82 PathProgramCache]: Analyzing trace with hash 153274152, now seen corresponding path program 43 times [2021-05-02 12:38:24,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:24,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238442928] [2021-05-02 12:38:24,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:25,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1849 backedges. 0 proven. 1849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:25,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:25,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238442928] [2021-05-02 12:38:25,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238442928] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:25,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623473649] [2021-05-02 12:38:25,551 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:25,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 50 conjunts are in the unsatisfiable core [2021-05-02 12:38:25,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:25,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1849 backedges. 0 proven. 1849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:25,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623473649] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:25,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:25,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 48] total 52 [2021-05-02 12:38:25,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96632732] [2021-05-02 12:38:25,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-05-02 12:38:25,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:25,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-05-02 12:38:25,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1093, Invalid=1559, Unknown=0, NotChecked=0, Total=2652 [2021-05-02 12:38:25,880 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand has 52 states, 52 states have (on average 1.9038461538461537) internal successors, (99), 49 states have internal predecessors, (99), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:28,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:28,026 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2021-05-02 12:38:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-05-02 12:38:28,027 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.9038461538461537) internal successors, (99), 49 states have internal predecessors, (99), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2021-05-02 12:38:28,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:28,027 INFO L225 Difference]: With dead ends: 106 [2021-05-02 12:38:28,027 INFO L226 Difference]: Without dead ends: 101 [2021-05-02 12:38:28,028 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1471 ImplicationChecksByTransitivity, 2896.2ms TimeCoverageRelationStatistics Valid=3175, Invalid=6331, Unknown=0, NotChecked=0, Total=9506 [2021-05-02 12:38:28,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-05-02 12:38:28,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2021-05-02 12:38:28,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:28,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2021-05-02 12:38:28,033 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 97 [2021-05-02 12:38:28,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:28,033 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2021-05-02 12:38:28,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 1.9038461538461537) internal successors, (99), 49 states have internal predecessors, (99), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:28,033 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2021-05-02 12:38:28,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-05-02 12:38:28,033 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:28,034 INFO L523 BasicCegarLoop]: trace histogram [44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:28,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:28,255 INFO L428 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:28,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:28,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1927246876, now seen corresponding path program 44 times [2021-05-02 12:38:28,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:28,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613078478] [2021-05-02 12:38:28,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:29,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:29,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:29,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:29,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613078478] [2021-05-02 12:38:29,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613078478] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:29,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174855434] [2021-05-02 12:38:29,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:29,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:38:29,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:29,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 53 conjunts are in the unsatisfiable core [2021-05-02 12:38:29,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:29,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:29,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:29,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174855434] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:29,685 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:29,685 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 54 [2021-05-02 12:38:29,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391323528] [2021-05-02 12:38:29,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-05-02 12:38:29,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:29,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-05-02 12:38:29,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1142, Invalid=1720, Unknown=0, NotChecked=0, Total=2862 [2021-05-02 12:38:29,686 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand has 54 states, 54 states have (on average 1.8888888888888888) internal successors, (102), 51 states have internal predecessors, (102), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 12:38:32,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:32,083 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2021-05-02 12:38:32,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-02 12:38:32,083 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 1.8888888888888888) internal successors, (102), 51 states have internal predecessors, (102), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 99 [2021-05-02 12:38:32,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:32,084 INFO L225 Difference]: With dead ends: 108 [2021-05-02 12:38:32,084 INFO L226 Difference]: Without dead ends: 103 [2021-05-02 12:38:32,085 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1574 ImplicationChecksByTransitivity, 3134.3ms TimeCoverageRelationStatistics Valid=3414, Invalid=6888, Unknown=0, NotChecked=0, Total=10302 [2021-05-02 12:38:32,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-05-02 12:38:32,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2021-05-02 12:38:32,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 97 states have (on average 1.0103092783505154) internal successors, (98), 97 states have internal predecessors, (98), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:32,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2021-05-02 12:38:32,089 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 99 [2021-05-02 12:38:32,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:32,089 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2021-05-02 12:38:32,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 54 states, 54 states have (on average 1.8888888888888888) internal successors, (102), 51 states have internal predecessors, (102), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 12:38:32,089 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2021-05-02 12:38:32,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-05-02 12:38:32,089 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:32,089 INFO L523 BasicCegarLoop]: trace histogram [45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:32,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-05-02 12:38:32,306 INFO L428 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:32,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:32,306 INFO L82 PathProgramCache]: Analyzing trace with hash 146805152, now seen corresponding path program 45 times [2021-05-02 12:38:32,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:32,307 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507805672] [2021-05-02 12:38:32,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:33,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:33,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 0 proven. 2025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:33,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:33,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507805672] [2021-05-02 12:38:33,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507805672] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:33,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597965998] [2021-05-02 12:38:33,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:33,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-05-02 12:38:33,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:33,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 52 conjunts are in the unsatisfiable core [2021-05-02 12:38:33,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:33,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 0 proven. 2025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:33,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597965998] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:33,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:33,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 50] total 54 [2021-05-02 12:38:33,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585647093] [2021-05-02 12:38:33,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-05-02 12:38:33,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:33,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-05-02 12:38:33,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1188, Invalid=1674, Unknown=0, NotChecked=0, Total=2862 [2021-05-02 12:38:33,706 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand has 54 states, 54 states have (on average 1.9074074074074074) internal successors, (103), 51 states have internal predecessors, (103), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:35,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:35,900 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2021-05-02 12:38:35,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-05-02 12:38:35,901 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 1.9074074074074074) internal successors, (103), 51 states have internal predecessors, (103), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2021-05-02 12:38:35,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:35,902 INFO L225 Difference]: With dead ends: 110 [2021-05-02 12:38:35,902 INFO L226 Difference]: Without dead ends: 105 [2021-05-02 12:38:35,903 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1584 ImplicationChecksByTransitivity, 2967.3ms TimeCoverageRelationStatistics Valid=3456, Invalid=6846, Unknown=0, NotChecked=0, Total=10302 [2021-05-02 12:38:35,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-05-02 12:38:35,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2021-05-02 12:38:35,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 99 states have (on average 1.0101010101010102) internal successors, (100), 99 states have internal predecessors, (100), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:35,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2021-05-02 12:38:35,908 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 101 [2021-05-02 12:38:35,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:35,909 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2021-05-02 12:38:35,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 54 states, 54 states have (on average 1.9074074074074074) internal successors, (103), 51 states have internal predecessors, (103), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:35,909 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2021-05-02 12:38:35,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-05-02 12:38:35,909 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:35,909 INFO L523 BasicCegarLoop]: trace histogram [46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:36,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-05-02 12:38:36,114 INFO L428 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:36,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:36,115 INFO L82 PathProgramCache]: Analyzing trace with hash 445978716, now seen corresponding path program 46 times [2021-05-02 12:38:36,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:36,115 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902323005] [2021-05-02 12:38:36,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:37,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:37,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:37,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902323005] [2021-05-02 12:38:37,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902323005] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:37,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992256923] [2021-05-02 12:38:37,293 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:37,391 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:38:37,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:37,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 50 conjunts are in the unsatisfiable core [2021-05-02 12:38:37,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:37,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:37,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:37,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992256923] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:37,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:37,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 51] total 55 [2021-05-02 12:38:37,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021285260] [2021-05-02 12:38:37,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-05-02 12:38:37,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:37,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-05-02 12:38:37,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1237, Invalid=1733, Unknown=0, NotChecked=0, Total=2970 [2021-05-02 12:38:37,564 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand has 55 states, 55 states have (on average 1.9090909090909092) internal successors, (105), 52 states have internal predecessors, (105), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:39,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:39,324 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2021-05-02 12:38:39,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-02 12:38:39,325 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 1.9090909090909092) internal successors, (105), 52 states have internal predecessors, (105), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2021-05-02 12:38:39,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:39,326 INFO L225 Difference]: With dead ends: 112 [2021-05-02 12:38:39,326 INFO L226 Difference]: Without dead ends: 107 [2021-05-02 12:38:39,327 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1642 ImplicationChecksByTransitivity, 2559.9ms TimeCoverageRelationStatistics Valid=3601, Invalid=7111, Unknown=0, NotChecked=0, Total=10712 [2021-05-02 12:38:39,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-05-02 12:38:39,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2021-05-02 12:38:39,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 101 states have (on average 1.00990099009901) internal successors, (102), 101 states have internal predecessors, (102), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:39,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2021-05-02 12:38:39,331 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 103 [2021-05-02 12:38:39,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:39,331 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2021-05-02 12:38:39,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 1.9090909090909092) internal successors, (105), 52 states have internal predecessors, (105), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:39,331 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2021-05-02 12:38:39,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-05-02 12:38:39,332 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:39,332 INFO L523 BasicCegarLoop]: trace histogram [47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:39,542 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-05-02 12:38:39,542 INFO L428 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:39,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:39,543 INFO L82 PathProgramCache]: Analyzing trace with hash 188964888, now seen corresponding path program 47 times [2021-05-02 12:38:39,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:39,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448137314] [2021-05-02 12:38:39,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:40,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:40,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 0 proven. 2209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:40,784 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:40,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448137314] [2021-05-02 12:38:40,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448137314] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:40,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525338487] [2021-05-02 12:38:40,784 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:40,958 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-05-02 12:38:40,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:40,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 54 conjunts are in the unsatisfiable core [2021-05-02 12:38:40,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:40,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:40,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:40,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:40,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:40,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:40,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:41,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 0 proven. 2209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:41,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525338487] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:41,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:41,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 52] total 56 [2021-05-02 12:38:41,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986137918] [2021-05-02 12:38:41,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-05-02 12:38:41,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:41,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-05-02 12:38:41,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1287, Invalid=1793, Unknown=0, NotChecked=0, Total=3080 [2021-05-02 12:38:41,254 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 56 states, 56 states have (on average 1.9107142857142858) internal successors, (107), 53 states have internal predecessors, (107), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:43,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:43,698 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2021-05-02 12:38:43,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-05-02 12:38:43,698 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 1.9107142857142858) internal successors, (107), 53 states have internal predecessors, (107), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2021-05-02 12:38:43,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:43,699 INFO L225 Difference]: With dead ends: 114 [2021-05-02 12:38:43,699 INFO L226 Difference]: Without dead ends: 109 [2021-05-02 12:38:43,700 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1701 ImplicationChecksByTransitivity, 3355.0ms TimeCoverageRelationStatistics Valid=3749, Invalid=7381, Unknown=0, NotChecked=0, Total=11130 [2021-05-02 12:38:43,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-05-02 12:38:43,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2021-05-02 12:38:43,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 103 states have (on average 1.0097087378640777) internal successors, (104), 103 states have internal predecessors, (104), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:43,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2021-05-02 12:38:43,706 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 105 [2021-05-02 12:38:43,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:43,706 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2021-05-02 12:38:43,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 56 states, 56 states have (on average 1.9107142857142858) internal successors, (107), 53 states have internal predecessors, (107), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:43,706 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2021-05-02 12:38:43,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-05-02 12:38:43,707 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:43,707 INFO L523 BasicCegarLoop]: trace histogram [48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:43,927 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:43,928 INFO L428 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:43,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:43,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1988187948, now seen corresponding path program 48 times [2021-05-02 12:38:43,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:43,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5485557] [2021-05-02 12:38:43,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:45,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2304 backedges. 0 proven. 2304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:45,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:45,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5485557] [2021-05-02 12:38:45,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5485557] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:45,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718477522] [2021-05-02 12:38:45,205 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:45,382 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-05-02 12:38:45,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:45,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 55 conjunts are in the unsatisfiable core [2021-05-02 12:38:45,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:45,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:45,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2304 backedges. 0 proven. 2304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:45,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718477522] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:45,682 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:45,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 53] total 57 [2021-05-02 12:38:45,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364049692] [2021-05-02 12:38:45,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-05-02 12:38:45,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:45,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-05-02 12:38:45,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1338, Invalid=1854, Unknown=0, NotChecked=0, Total=3192 [2021-05-02 12:38:45,684 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand has 57 states, 57 states have (on average 1.912280701754386) internal successors, (109), 54 states have internal predecessors, (109), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:48,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:48,033 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2021-05-02 12:38:48,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-05-02 12:38:48,033 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 1.912280701754386) internal successors, (109), 54 states have internal predecessors, (109), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2021-05-02 12:38:48,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:48,034 INFO L225 Difference]: With dead ends: 116 [2021-05-02 12:38:48,034 INFO L226 Difference]: Without dead ends: 111 [2021-05-02 12:38:48,036 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1761 ImplicationChecksByTransitivity, 3368.0ms TimeCoverageRelationStatistics Valid=3900, Invalid=7656, Unknown=0, NotChecked=0, Total=11556 [2021-05-02 12:38:48,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-05-02 12:38:48,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2021-05-02 12:38:48,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 105 states have (on average 1.0095238095238095) internal successors, (106), 105 states have internal predecessors, (106), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:48,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2021-05-02 12:38:48,042 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 107 [2021-05-02 12:38:48,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:48,042 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2021-05-02 12:38:48,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 57 states, 57 states have (on average 1.912280701754386) internal successors, (109), 54 states have internal predecessors, (109), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2021-05-02 12:38:48,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-05-02 12:38:48,043 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:48,043 INFO L523 BasicCegarLoop]: trace histogram [49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:48,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-05-02 12:38:48,257 INFO L428 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:48,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:48,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1711977104, now seen corresponding path program 49 times [2021-05-02 12:38:48,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:48,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948914745] [2021-05-02 12:38:48,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:49,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:49,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2401 backedges. 0 proven. 2401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:49,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:49,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948914745] [2021-05-02 12:38:49,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948914745] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:49,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503583241] [2021-05-02 12:38:49,370 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:49,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 56 conjunts are in the unsatisfiable core [2021-05-02 12:38:49,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:49,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2401 backedges. 0 proven. 2401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:49,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503583241] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:49,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:49,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 54] total 58 [2021-05-02 12:38:49,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586088231] [2021-05-02 12:38:49,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-05-02 12:38:49,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:49,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-05-02 12:38:49,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1390, Invalid=1916, Unknown=0, NotChecked=0, Total=3306 [2021-05-02 12:38:49,714 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand has 58 states, 58 states have (on average 1.9137931034482758) internal successors, (111), 55 states have internal predecessors, (111), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:52,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:52,321 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2021-05-02 12:38:52,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-05-02 12:38:52,322 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 1.9137931034482758) internal successors, (111), 55 states have internal predecessors, (111), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2021-05-02 12:38:52,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:52,323 INFO L225 Difference]: With dead ends: 118 [2021-05-02 12:38:52,323 INFO L226 Difference]: Without dead ends: 113 [2021-05-02 12:38:52,324 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1822 ImplicationChecksByTransitivity, 3312.5ms TimeCoverageRelationStatistics Valid=4054, Invalid=7936, Unknown=0, NotChecked=0, Total=11990 [2021-05-02 12:38:52,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-05-02 12:38:52,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2021-05-02 12:38:52,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 107 states have (on average 1.0093457943925233) internal successors, (108), 107 states have internal predecessors, (108), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2021-05-02 12:38:52,332 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 109 [2021-05-02 12:38:52,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:52,332 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2021-05-02 12:38:52,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 1.9137931034482758) internal successors, (111), 55 states have internal predecessors, (111), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:52,332 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2021-05-02 12:38:52,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-05-02 12:38:52,333 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:52,333 INFO L523 BasicCegarLoop]: trace histogram [50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:52,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-05-02 12:38:52,549 INFO L428 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:52,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:52,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1337670988, now seen corresponding path program 50 times [2021-05-02 12:38:52,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:52,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431526041] [2021-05-02 12:38:52,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:54,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2500 backedges. 0 proven. 2500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:54,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:54,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431526041] [2021-05-02 12:38:54,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431526041] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:54,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978857831] [2021-05-02 12:38:54,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:54,116 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:38:54,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:54,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 57 conjunts are in the unsatisfiable core [2021-05-02 12:38:54,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:54,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2500 backedges. 0 proven. 2500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:54,421 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978857831] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:54,422 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:54,422 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 55] total 59 [2021-05-02 12:38:54,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566390528] [2021-05-02 12:38:54,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states [2021-05-02 12:38:54,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:54,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-05-02 12:38:54,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1443, Invalid=1979, Unknown=0, NotChecked=0, Total=3422 [2021-05-02 12:38:54,423 INFO L87 Difference]: Start difference. First operand 112 states and 112 transitions. Second operand has 59 states, 59 states have (on average 1.9152542372881356) internal successors, (113), 56 states have internal predecessors, (113), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:56,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:56,718 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2021-05-02 12:38:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-05-02 12:38:56,718 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 1.9152542372881356) internal successors, (113), 56 states have internal predecessors, (113), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2021-05-02 12:38:56,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:56,719 INFO L225 Difference]: With dead ends: 120 [2021-05-02 12:38:56,719 INFO L226 Difference]: Without dead ends: 115 [2021-05-02 12:38:56,720 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1884 ImplicationChecksByTransitivity, 3487.7ms TimeCoverageRelationStatistics Valid=4211, Invalid=8221, Unknown=0, NotChecked=0, Total=12432 [2021-05-02 12:38:56,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-05-02 12:38:56,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2021-05-02 12:38:56,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 109 states have (on average 1.0091743119266054) internal successors, (110), 109 states have internal predecessors, (110), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:56,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2021-05-02 12:38:56,741 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 111 [2021-05-02 12:38:56,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:56,741 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2021-05-02 12:38:56,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 59 states, 59 states have (on average 1.9152542372881356) internal successors, (113), 56 states have internal predecessors, (113), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:38:56,741 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2021-05-02 12:38:56,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-02 12:38:56,742 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:56,742 INFO L523 BasicCegarLoop]: trace histogram [51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:56,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:56,977 INFO L428 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:56,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:56,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1888220920, now seen corresponding path program 51 times [2021-05-02 12:38:56,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:56,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678067823] [2021-05-02 12:38:56,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:58,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:58,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2601 backedges. 0 proven. 2601 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:58,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:58,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678067823] [2021-05-02 12:38:58,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678067823] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:58,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582281443] [2021-05-02 12:38:58,440 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:58,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-05-02 12:38:58,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:58,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 58 conjunts are in the unsatisfiable core [2021-05-02 12:38:58,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:58,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2601 backedges. 0 proven. 2601 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:38:58,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582281443] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:58,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:58,905 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 56] total 60 [2021-05-02 12:38:58,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984106119] [2021-05-02 12:38:58,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-05-02 12:38:58,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:58,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-05-02 12:38:58,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1497, Invalid=2043, Unknown=0, NotChecked=0, Total=3540 [2021-05-02 12:38:58,906 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand has 60 states, 60 states have (on average 1.9166666666666667) internal successors, (115), 57 states have internal predecessors, (115), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:01,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:39:01,501 INFO L93 Difference]: Finished difference Result 122 states and 122 transitions. [2021-05-02 12:39:01,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-05-02 12:39:01,502 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 1.9166666666666667) internal successors, (115), 57 states have internal predecessors, (115), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2021-05-02 12:39:01,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:39:01,503 INFO L225 Difference]: With dead ends: 122 [2021-05-02 12:39:01,503 INFO L226 Difference]: Without dead ends: 117 [2021-05-02 12:39:01,504 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1947 ImplicationChecksByTransitivity, 3692.1ms TimeCoverageRelationStatistics Valid=4371, Invalid=8511, Unknown=0, NotChecked=0, Total=12882 [2021-05-02 12:39:01,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-05-02 12:39:01,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2021-05-02 12:39:01,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 111 states have (on average 1.009009009009009) internal successors, (112), 111 states have internal predecessors, (112), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:01,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2021-05-02 12:39:01,509 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 113 [2021-05-02 12:39:01,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:39:01,509 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2021-05-02 12:39:01,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 1.9166666666666667) internal successors, (115), 57 states have internal predecessors, (115), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:01,509 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2021-05-02 12:39:01,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-05-02 12:39:01,510 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:39:01,510 INFO L523 BasicCegarLoop]: trace histogram [52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:39:01,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-05-02 12:39:01,729 INFO L428 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:39:01,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:39:01,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1003956796, now seen corresponding path program 52 times [2021-05-02 12:39:01,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:39:01,729 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937757478] [2021-05-02 12:39:01,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:39:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:03,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:39:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:03,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2704 backedges. 0 proven. 2704 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:03,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:39:03,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937757478] [2021-05-02 12:39:03,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937757478] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:03,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304786117] [2021-05-02 12:39:03,206 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:03,313 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:39:03,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:39:03,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 56 conjunts are in the unsatisfiable core [2021-05-02 12:39:03,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:39:03,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2704 backedges. 0 proven. 2704 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:03,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304786117] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:03,599 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:39:03,599 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 57] total 61 [2021-05-02 12:39:03,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532610120] [2021-05-02 12:39:03,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states [2021-05-02 12:39:03,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:39:03,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-05-02 12:39:03,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1552, Invalid=2108, Unknown=0, NotChecked=0, Total=3660 [2021-05-02 12:39:03,601 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand has 61 states, 61 states have (on average 1.9180327868852458) internal successors, (117), 58 states have internal predecessors, (117), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:06,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:39:06,374 INFO L93 Difference]: Finished difference Result 124 states and 124 transitions. [2021-05-02 12:39:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-05-02 12:39:06,375 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 1.9180327868852458) internal successors, (117), 58 states have internal predecessors, (117), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2021-05-02 12:39:06,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:39:06,375 INFO L225 Difference]: With dead ends: 124 [2021-05-02 12:39:06,375 INFO L226 Difference]: Without dead ends: 119 [2021-05-02 12:39:06,376 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2011 ImplicationChecksByTransitivity, 3878.6ms TimeCoverageRelationStatistics Valid=4534, Invalid=8806, Unknown=0, NotChecked=0, Total=13340 [2021-05-02 12:39:06,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-05-02 12:39:06,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2021-05-02 12:39:06,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 113 states have (on average 1.008849557522124) internal successors, (114), 113 states have internal predecessors, (114), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:06,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 118 transitions. [2021-05-02 12:39:06,381 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 118 transitions. Word has length 115 [2021-05-02 12:39:06,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:39:06,382 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 118 transitions. [2021-05-02 12:39:06,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 61 states, 61 states have (on average 1.9180327868852458) internal successors, (117), 58 states have internal predecessors, (117), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:06,382 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 118 transitions. [2021-05-02 12:39:06,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-05-02 12:39:06,382 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:39:06,382 INFO L523 BasicCegarLoop]: trace histogram [53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:39:06,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:06,597 INFO L428 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:39:06,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:39:06,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1629658240, now seen corresponding path program 53 times [2021-05-02 12:39:06,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:39:06,597 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607480331] [2021-05-02 12:39:06,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:39:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:08,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:39:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:08,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2809 backedges. 0 proven. 2809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:08,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:39:08,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607480331] [2021-05-02 12:39:08,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607480331] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:08,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811869430] [2021-05-02 12:39:08,166 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:08,322 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2021-05-02 12:39:08,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:39:08,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 60 conjunts are in the unsatisfiable core [2021-05-02 12:39:08,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:39:08,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:08,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2809 backedges. 0 proven. 2809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:08,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811869430] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:08,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:39:08,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 58] total 62 [2021-05-02 12:39:08,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193300662] [2021-05-02 12:39:08,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-05-02 12:39:08,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:39:08,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-05-02 12:39:08,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1608, Invalid=2174, Unknown=0, NotChecked=0, Total=3782 [2021-05-02 12:39:08,620 INFO L87 Difference]: Start difference. First operand 118 states and 118 transitions. Second operand has 62 states, 62 states have (on average 1.9193548387096775) internal successors, (119), 59 states have internal predecessors, (119), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:11,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:39:11,098 INFO L93 Difference]: Finished difference Result 126 states and 126 transitions. [2021-05-02 12:39:11,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-05-02 12:39:11,099 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 1.9193548387096775) internal successors, (119), 59 states have internal predecessors, (119), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2021-05-02 12:39:11,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:39:11,100 INFO L225 Difference]: With dead ends: 126 [2021-05-02 12:39:11,100 INFO L226 Difference]: Without dead ends: 121 [2021-05-02 12:39:11,101 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2076 ImplicationChecksByTransitivity, 3739.4ms TimeCoverageRelationStatistics Valid=4700, Invalid=9106, Unknown=0, NotChecked=0, Total=13806 [2021-05-02 12:39:11,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-05-02 12:39:11,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2021-05-02 12:39:11,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 115 states have (on average 1.008695652173913) internal successors, (116), 115 states have internal predecessors, (116), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:11,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2021-05-02 12:39:11,106 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 117 [2021-05-02 12:39:11,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:39:11,106 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2021-05-02 12:39:11,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 62 states, 62 states have (on average 1.9193548387096775) internal successors, (119), 59 states have internal predecessors, (119), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:11,106 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2021-05-02 12:39:11,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-02 12:39:11,106 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:39:11,107 INFO L523 BasicCegarLoop]: trace histogram [54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:39:11,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-05-02 12:39:11,325 INFO L428 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:39:11,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:39:11,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1633324484, now seen corresponding path program 54 times [2021-05-02 12:39:11,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:39:11,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446195358] [2021-05-02 12:39:11,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:39:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:12,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:39:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:12,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2916 backedges. 0 proven. 2916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:12,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:39:12,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446195358] [2021-05-02 12:39:12,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446195358] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:12,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698775895] [2021-05-02 12:39:12,865 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:13,128 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-05-02 12:39:13,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:39:13,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 61 conjunts are in the unsatisfiable core [2021-05-02 12:39:13,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:39:13,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2916 backedges. 0 proven. 2916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:13,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698775895] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:13,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:39:13,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 59] total 63 [2021-05-02 12:39:13,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460522342] [2021-05-02 12:39:13,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 63 states [2021-05-02 12:39:13,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:39:13,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-05-02 12:39:13,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1665, Invalid=2241, Unknown=0, NotChecked=0, Total=3906 [2021-05-02 12:39:13,396 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand has 63 states, 63 states have (on average 1.9206349206349207) internal successors, (121), 60 states have internal predecessors, (121), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:16,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:39:16,225 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2021-05-02 12:39:16,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-05-02 12:39:16,225 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 1.9206349206349207) internal successors, (121), 60 states have internal predecessors, (121), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2021-05-02 12:39:16,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:39:16,226 INFO L225 Difference]: With dead ends: 128 [2021-05-02 12:39:16,226 INFO L226 Difference]: Without dead ends: 123 [2021-05-02 12:39:16,227 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2142 ImplicationChecksByTransitivity, 4043.3ms TimeCoverageRelationStatistics Valid=4869, Invalid=9411, Unknown=0, NotChecked=0, Total=14280 [2021-05-02 12:39:16,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-05-02 12:39:16,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2021-05-02 12:39:16,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 117 states have (on average 1.0085470085470085) internal successors, (118), 117 states have internal predecessors, (118), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:16,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2021-05-02 12:39:16,231 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 119 [2021-05-02 12:39:16,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:39:16,231 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2021-05-02 12:39:16,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 63 states, 63 states have (on average 1.9206349206349207) internal successors, (121), 60 states have internal predecessors, (121), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2021-05-02 12:39:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-05-02 12:39:16,231 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:39:16,231 INFO L523 BasicCegarLoop]: trace histogram [55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:39:16,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-05-02 12:39:16,445 INFO L428 AbstractCegarLoop]: === Iteration 56 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:39:16,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:39:16,445 INFO L82 PathProgramCache]: Analyzing trace with hash -861617672, now seen corresponding path program 55 times [2021-05-02 12:39:16,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:39:16,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013295504] [2021-05-02 12:39:16,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:39:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:17,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:39:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:17,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3025 backedges. 0 proven. 3025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:17,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:39:17,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013295504] [2021-05-02 12:39:17,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013295504] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:17,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240665258] [2021-05-02 12:39:17,997 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:18,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 62 conjunts are in the unsatisfiable core [2021-05-02 12:39:18,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:39:18,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:18,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3025 backedges. 0 proven. 3025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:18,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240665258] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:18,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:39:18,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 60] total 64 [2021-05-02 12:39:18,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782852638] [2021-05-02 12:39:18,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-05-02 12:39:18,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:39:18,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-05-02 12:39:18,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1723, Invalid=2309, Unknown=0, NotChecked=0, Total=4032 [2021-05-02 12:39:18,353 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand has 64 states, 64 states have (on average 1.921875) internal successors, (123), 61 states have internal predecessors, (123), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:21,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:39:21,153 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2021-05-02 12:39:21,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-05-02 12:39:21,153 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 1.921875) internal successors, (123), 61 states have internal predecessors, (123), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2021-05-02 12:39:21,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:39:21,154 INFO L225 Difference]: With dead ends: 130 [2021-05-02 12:39:21,154 INFO L226 Difference]: Without dead ends: 125 [2021-05-02 12:39:21,155 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2209 ImplicationChecksByTransitivity, 4046.6ms TimeCoverageRelationStatistics Valid=5041, Invalid=9721, Unknown=0, NotChecked=0, Total=14762 [2021-05-02 12:39:21,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-05-02 12:39:21,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 124. [2021-05-02 12:39:21,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 119 states have (on average 1.0084033613445378) internal successors, (120), 119 states have internal predecessors, (120), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:21,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2021-05-02 12:39:21,159 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 121 [2021-05-02 12:39:21,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:39:21,159 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2021-05-02 12:39:21,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 1.921875) internal successors, (123), 61 states have internal predecessors, (123), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:21,160 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2021-05-02 12:39:21,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-05-02 12:39:21,160 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:39:21,160 INFO L523 BasicCegarLoop]: trace histogram [56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:39:21,376 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:21,376 INFO L428 AbstractCegarLoop]: === Iteration 57 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:39:21,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:39:21,377 INFO L82 PathProgramCache]: Analyzing trace with hash 2014253748, now seen corresponding path program 56 times [2021-05-02 12:39:21,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:39:21,377 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351856324] [2021-05-02 12:39:21,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:39:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:23,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:39:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 0 proven. 3136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:23,029 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:39:23,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351856324] [2021-05-02 12:39:23,029 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351856324] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:23,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066683166] [2021-05-02 12:39:23,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:23,135 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:39:23,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:39:23,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 63 conjunts are in the unsatisfiable core [2021-05-02 12:39:23,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:39:23,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:23,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 0 proven. 3136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:23,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066683166] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:23,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:39:23,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 61] total 65 [2021-05-02 12:39:23,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405121362] [2021-05-02 12:39:23,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-05-02 12:39:23,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:39:23,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-05-02 12:39:23,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1782, Invalid=2378, Unknown=0, NotChecked=0, Total=4160 [2021-05-02 12:39:23,399 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand has 65 states, 65 states have (on average 1.9230769230769231) internal successors, (125), 62 states have internal predecessors, (125), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:26,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:39:26,457 INFO L93 Difference]: Finished difference Result 132 states and 132 transitions. [2021-05-02 12:39:26,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-05-02 12:39:26,458 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 1.9230769230769231) internal successors, (125), 62 states have internal predecessors, (125), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2021-05-02 12:39:26,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:39:26,458 INFO L225 Difference]: With dead ends: 132 [2021-05-02 12:39:26,459 INFO L226 Difference]: Without dead ends: 127 [2021-05-02 12:39:26,460 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2277 ImplicationChecksByTransitivity, 4375.0ms TimeCoverageRelationStatistics Valid=5216, Invalid=10036, Unknown=0, NotChecked=0, Total=15252 [2021-05-02 12:39:26,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-05-02 12:39:26,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2021-05-02 12:39:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 121 states have (on average 1.0082644628099173) internal successors, (122), 121 states have internal predecessors, (122), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:26,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2021-05-02 12:39:26,464 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 123 [2021-05-02 12:39:26,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:39:26,464 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2021-05-02 12:39:26,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 65 states, 65 states have (on average 1.9230769230769231) internal successors, (125), 62 states have internal predecessors, (125), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:26,465 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2021-05-02 12:39:26,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-05-02 12:39:26,465 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:39:26,465 INFO L523 BasicCegarLoop]: trace histogram [57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:39:26,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-05-02 12:39:26,675 INFO L428 AbstractCegarLoop]: === Iteration 58 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:39:26,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:39:26,675 INFO L82 PathProgramCache]: Analyzing trace with hash -232250256, now seen corresponding path program 57 times [2021-05-02 12:39:26,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:39:26,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637886114] [2021-05-02 12:39:26,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:39:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:28,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:39:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:28,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3249 backedges. 0 proven. 3249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:28,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:39:28,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637886114] [2021-05-02 12:39:28,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637886114] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:28,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409564414] [2021-05-02 12:39:28,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:28,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-05-02 12:39:28,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:39:28,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 64 conjunts are in the unsatisfiable core [2021-05-02 12:39:28,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:39:28,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:28,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3249 backedges. 0 proven. 3249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:28,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409564414] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:28,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:39:28,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 62] total 66 [2021-05-02 12:39:28,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586835338] [2021-05-02 12:39:28,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states [2021-05-02 12:39:28,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:39:28,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-05-02 12:39:28,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1842, Invalid=2448, Unknown=0, NotChecked=0, Total=4290 [2021-05-02 12:39:28,908 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand has 66 states, 66 states have (on average 1.9242424242424243) internal successors, (127), 63 states have internal predecessors, (127), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:31,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:39:31,758 INFO L93 Difference]: Finished difference Result 134 states and 134 transitions. [2021-05-02 12:39:31,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-05-02 12:39:31,759 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.9242424242424243) internal successors, (127), 63 states have internal predecessors, (127), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2021-05-02 12:39:31,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:39:31,759 INFO L225 Difference]: With dead ends: 134 [2021-05-02 12:39:31,759 INFO L226 Difference]: Without dead ends: 129 [2021-05-02 12:39:31,760 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2346 ImplicationChecksByTransitivity, 4313.8ms TimeCoverageRelationStatistics Valid=5394, Invalid=10356, Unknown=0, NotChecked=0, Total=15750 [2021-05-02 12:39:31,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-05-02 12:39:31,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2021-05-02 12:39:31,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 123 states have (on average 1.008130081300813) internal successors, (124), 123 states have internal predecessors, (124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 128 transitions. [2021-05-02 12:39:31,770 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 128 transitions. Word has length 125 [2021-05-02 12:39:31,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:39:31,770 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 128 transitions. [2021-05-02 12:39:31,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 66 states, 66 states have (on average 1.9242424242424243) internal successors, (127), 63 states have internal predecessors, (127), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:31,770 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 128 transitions. [2021-05-02 12:39:31,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-05-02 12:39:31,771 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:39:31,771 INFO L523 BasicCegarLoop]: trace histogram [58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:39:31,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:31,971 INFO L428 AbstractCegarLoop]: === Iteration 59 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:39:31,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:39:31,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1245951788, now seen corresponding path program 58 times [2021-05-02 12:39:31,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:39:31,972 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622737874] [2021-05-02 12:39:31,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:39:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:33,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:39:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:33,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3364 backedges. 0 proven. 3364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:33,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:39:33,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622737874] [2021-05-02 12:39:33,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622737874] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:33,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634684814] [2021-05-02 12:39:33,714 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:33,870 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:39:33,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:39:33,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 62 conjunts are in the unsatisfiable core [2021-05-02 12:39:33,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:39:33,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:33,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:34,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3364 backedges. 0 proven. 3364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:34,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634684814] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:34,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:39:34,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 63] total 67 [2021-05-02 12:39:34,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526561545] [2021-05-02 12:39:34,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-05-02 12:39:34,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:39:34,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-05-02 12:39:34,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1903, Invalid=2519, Unknown=0, NotChecked=0, Total=4422 [2021-05-02 12:39:34,172 INFO L87 Difference]: Start difference. First operand 128 states and 128 transitions. Second operand has 67 states, 67 states have (on average 1.9253731343283582) internal successors, (129), 64 states have internal predecessors, (129), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:37,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:39:37,587 INFO L93 Difference]: Finished difference Result 136 states and 136 transitions. [2021-05-02 12:39:37,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-05-02 12:39:37,587 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 1.9253731343283582) internal successors, (129), 64 states have internal predecessors, (129), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 127 [2021-05-02 12:39:37,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:39:37,588 INFO L225 Difference]: With dead ends: 136 [2021-05-02 12:39:37,588 INFO L226 Difference]: Without dead ends: 131 [2021-05-02 12:39:37,589 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2416 ImplicationChecksByTransitivity, 4767.0ms TimeCoverageRelationStatistics Valid=5575, Invalid=10681, Unknown=0, NotChecked=0, Total=16256 [2021-05-02 12:39:37,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-05-02 12:39:37,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2021-05-02 12:39:37,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 125 states have (on average 1.008) internal successors, (126), 125 states have internal predecessors, (126), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:37,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 130 transitions. [2021-05-02 12:39:37,595 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 130 transitions. Word has length 127 [2021-05-02 12:39:37,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:39:37,595 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 130 transitions. [2021-05-02 12:39:37,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 67 states, 67 states have (on average 1.9253731343283582) internal successors, (129), 64 states have internal predecessors, (129), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:37,595 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 130 transitions. [2021-05-02 12:39:37,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-05-02 12:39:37,596 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:39:37,596 INFO L523 BasicCegarLoop]: trace histogram [59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:39:37,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-05-02 12:39:37,819 INFO L428 AbstractCegarLoop]: === Iteration 60 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:39:37,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:39:37,819 INFO L82 PathProgramCache]: Analyzing trace with hash 163941096, now seen corresponding path program 59 times [2021-05-02 12:39:37,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:39:37,819 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824771618] [2021-05-02 12:39:37,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:39:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:39,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:39:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:39,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3481 backedges. 0 proven. 3481 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:39,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:39:39,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824771618] [2021-05-02 12:39:39,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824771618] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:39,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641629373] [2021-05-02 12:39:39,635 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:39,777 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2021-05-02 12:39:39,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:39:39,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 66 conjunts are in the unsatisfiable core [2021-05-02 12:39:39,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:39:39,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:39,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:40,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:40,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:40,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:40,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:40,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3481 backedges. 0 proven. 3481 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:40,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641629373] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:40,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:39:40,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 64] total 68 [2021-05-02 12:39:40,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009820296] [2021-05-02 12:39:40,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states [2021-05-02 12:39:40,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:39:40,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-05-02 12:39:40,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1965, Invalid=2591, Unknown=0, NotChecked=0, Total=4556 [2021-05-02 12:39:40,063 INFO L87 Difference]: Start difference. First operand 130 states and 130 transitions. Second operand has 68 states, 68 states have (on average 1.9264705882352942) internal successors, (131), 65 states have internal predecessors, (131), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:43,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:39:43,138 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2021-05-02 12:39:43,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-05-02 12:39:43,139 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 1.9264705882352942) internal successors, (131), 65 states have internal predecessors, (131), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129 [2021-05-02 12:39:43,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:39:43,139 INFO L225 Difference]: With dead ends: 138 [2021-05-02 12:39:43,140 INFO L226 Difference]: Without dead ends: 133 [2021-05-02 12:39:43,141 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2487 ImplicationChecksByTransitivity, 4628.8ms TimeCoverageRelationStatistics Valid=5759, Invalid=11011, Unknown=0, NotChecked=0, Total=16770 [2021-05-02 12:39:43,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-05-02 12:39:43,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2021-05-02 12:39:43,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 127 states have (on average 1.0078740157480315) internal successors, (128), 127 states have internal predecessors, (128), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:43,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2021-05-02 12:39:43,148 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 129 [2021-05-02 12:39:43,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:39:43,148 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2021-05-02 12:39:43,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 68 states, 68 states have (on average 1.9264705882352942) internal successors, (131), 65 states have internal predecessors, (131), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:43,149 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2021-05-02 12:39:43,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-05-02 12:39:43,149 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:39:43,149 INFO L523 BasicCegarLoop]: trace histogram [60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:39:43,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-05-02 12:39:43,350 INFO L428 AbstractCegarLoop]: === Iteration 61 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:39:43,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:39:43,351 INFO L82 PathProgramCache]: Analyzing trace with hash -266248284, now seen corresponding path program 60 times [2021-05-02 12:39:43,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:39:43,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491156180] [2021-05-02 12:39:43,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:39:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:45,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:39:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 0 proven. 3600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:45,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:39:45,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491156180] [2021-05-02 12:39:45,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491156180] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:45,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465979525] [2021-05-02 12:39:45,151 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:45,304 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2021-05-02 12:39:45,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:39:45,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 67 conjunts are in the unsatisfiable core [2021-05-02 12:39:45,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:39:45,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:45,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 0 proven. 3600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:45,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465979525] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:45,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:39:45,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 65] total 69 [2021-05-02 12:39:45,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710862620] [2021-05-02 12:39:45,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-05-02 12:39:45,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:39:45,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-05-02 12:39:45,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2028, Invalid=2664, Unknown=0, NotChecked=0, Total=4692 [2021-05-02 12:39:45,610 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand has 69 states, 69 states have (on average 1.9275362318840579) internal successors, (133), 66 states have internal predecessors, (133), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:48,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:39:48,826 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2021-05-02 12:39:48,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-05-02 12:39:48,826 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 1.9275362318840579) internal successors, (133), 66 states have internal predecessors, (133), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2021-05-02 12:39:48,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:39:48,827 INFO L225 Difference]: With dead ends: 140 [2021-05-02 12:39:48,827 INFO L226 Difference]: Without dead ends: 135 [2021-05-02 12:39:48,828 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2559 ImplicationChecksByTransitivity, 4631.3ms TimeCoverageRelationStatistics Valid=5946, Invalid=11346, Unknown=0, NotChecked=0, Total=17292 [2021-05-02 12:39:48,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-05-02 12:39:48,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 134. [2021-05-02 12:39:48,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 129 states have (on average 1.0077519379844961) internal successors, (130), 129 states have internal predecessors, (130), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2021-05-02 12:39:48,833 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 131 [2021-05-02 12:39:48,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:39:48,833 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2021-05-02 12:39:48,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 1.9275362318840579) internal successors, (133), 66 states have internal predecessors, (133), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:48,833 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2021-05-02 12:39:48,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-05-02 12:39:48,833 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:39:48,833 INFO L523 BasicCegarLoop]: trace histogram [61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:39:49,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,61 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:49,036 INFO L428 AbstractCegarLoop]: === Iteration 62 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:39:49,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:39:49,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1361382048, now seen corresponding path program 61 times [2021-05-02 12:39:49,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:39:49,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206553129] [2021-05-02 12:39:49,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:39:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:51,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:39:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:51,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3721 backedges. 0 proven. 3721 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:51,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:39:51,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206553129] [2021-05-02 12:39:51,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206553129] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:51,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241031739] [2021-05-02 12:39:51,137 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:51,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 68 conjunts are in the unsatisfiable core [2021-05-02 12:39:51,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:39:51,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:51,664 INFO L134 CoverageAnalysis]: Checked inductivity of 3721 backedges. 0 proven. 3721 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:51,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241031739] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:51,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:39:51,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 66] total 70 [2021-05-02 12:39:51,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637132948] [2021-05-02 12:39:51,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states [2021-05-02 12:39:51,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:39:51,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-05-02 12:39:51,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2092, Invalid=2738, Unknown=0, NotChecked=0, Total=4830 [2021-05-02 12:39:51,666 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand has 70 states, 70 states have (on average 1.9285714285714286) internal successors, (135), 67 states have internal predecessors, (135), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:55,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:39:55,801 INFO L93 Difference]: Finished difference Result 142 states and 142 transitions. [2021-05-02 12:39:55,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-05-02 12:39:55,801 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 1.9285714285714286) internal successors, (135), 67 states have internal predecessors, (135), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2021-05-02 12:39:55,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:39:55,802 INFO L225 Difference]: With dead ends: 142 [2021-05-02 12:39:55,802 INFO L226 Difference]: Without dead ends: 137 [2021-05-02 12:39:55,803 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2632 ImplicationChecksByTransitivity, 5738.0ms TimeCoverageRelationStatistics Valid=6136, Invalid=11686, Unknown=0, NotChecked=0, Total=17822 [2021-05-02 12:39:55,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-05-02 12:39:55,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 136. [2021-05-02 12:39:55,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 131 states have (on average 1.0076335877862594) internal successors, (132), 131 states have internal predecessors, (132), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:55,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 136 transitions. [2021-05-02 12:39:55,810 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 136 transitions. Word has length 133 [2021-05-02 12:39:55,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:39:55,811 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 136 transitions. [2021-05-02 12:39:55,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 70 states, 70 states have (on average 1.9285714285714286) internal successors, (135), 67 states have internal predecessors, (135), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:39:55,811 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 136 transitions. [2021-05-02 12:39:55,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-05-02 12:39:55,811 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:39:55,811 INFO L523 BasicCegarLoop]: trace histogram [62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:39:56,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:56,032 INFO L428 AbstractCegarLoop]: === Iteration 63 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:39:56,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:39:56,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1517941732, now seen corresponding path program 62 times [2021-05-02 12:39:56,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:39:56,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681659817] [2021-05-02 12:39:56,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:39:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:58,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:39:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 3844 backedges. 0 proven. 3844 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:58,257 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:39:58,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681659817] [2021-05-02 12:39:58,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681659817] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:58,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995255169] [2021-05-02 12:39:58,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:58,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:39:58,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:39:58,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 69 conjunts are in the unsatisfiable core [2021-05-02 12:39:58,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:39:58,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3844 backedges. 0 proven. 3844 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:39:58,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995255169] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:58,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:39:58,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 67] total 71 [2021-05-02 12:39:58,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922664557] [2021-05-02 12:39:58,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 71 states [2021-05-02 12:39:58,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:39:58,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-05-02 12:39:58,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2157, Invalid=2813, Unknown=0, NotChecked=0, Total=4970 [2021-05-02 12:39:58,675 INFO L87 Difference]: Start difference. First operand 136 states and 136 transitions. Second operand has 71 states, 71 states have (on average 1.9295774647887325) internal successors, (137), 68 states have internal predecessors, (137), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:02,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:40:02,102 INFO L93 Difference]: Finished difference Result 144 states and 144 transitions. [2021-05-02 12:40:02,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-05-02 12:40:02,104 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 1.9295774647887325) internal successors, (137), 68 states have internal predecessors, (137), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2021-05-02 12:40:02,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:40:02,104 INFO L225 Difference]: With dead ends: 144 [2021-05-02 12:40:02,104 INFO L226 Difference]: Without dead ends: 139 [2021-05-02 12:40:02,105 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2706 ImplicationChecksByTransitivity, 5222.1ms TimeCoverageRelationStatistics Valid=6329, Invalid=12031, Unknown=0, NotChecked=0, Total=18360 [2021-05-02 12:40:02,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-05-02 12:40:02,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 138. [2021-05-02 12:40:02,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 133 states have (on average 1.0075187969924813) internal successors, (134), 133 states have internal predecessors, (134), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:02,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2021-05-02 12:40:02,110 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 135 [2021-05-02 12:40:02,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:40:02,111 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2021-05-02 12:40:02,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 71 states, 71 states have (on average 1.9295774647887325) internal successors, (137), 68 states have internal predecessors, (137), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:02,111 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2021-05-02 12:40:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-05-02 12:40:02,112 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:40:02,112 INFO L523 BasicCegarLoop]: trace histogram [63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:40:02,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,63 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:40:02,315 INFO L428 AbstractCegarLoop]: === Iteration 64 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:40:02,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:40:02,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1647942696, now seen corresponding path program 63 times [2021-05-02 12:40:02,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:40:02,315 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786686667] [2021-05-02 12:40:02,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:40:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:04,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:40:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:04,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3969 backedges. 0 proven. 3969 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:04,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:40:04,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786686667] [2021-05-02 12:40:04,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786686667] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:04,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673185540] [2021-05-02 12:40:04,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:40:04,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2021-05-02 12:40:04,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:40:04,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 70 conjunts are in the unsatisfiable core [2021-05-02 12:40:04,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:40:04,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:04,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3969 backedges. 0 proven. 3969 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:05,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673185540] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:05,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:40:05,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 68] total 72 [2021-05-02 12:40:05,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471043124] [2021-05-02 12:40:05,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 72 states [2021-05-02 12:40:05,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:40:05,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-05-02 12:40:05,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2223, Invalid=2889, Unknown=0, NotChecked=0, Total=5112 [2021-05-02 12:40:05,400 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand has 72 states, 72 states have (on average 1.9305555555555556) internal successors, (139), 69 states have internal predecessors, (139), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:40:09,466 INFO L93 Difference]: Finished difference Result 146 states and 146 transitions. [2021-05-02 12:40:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-05-02 12:40:09,467 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 1.9305555555555556) internal successors, (139), 69 states have internal predecessors, (139), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 137 [2021-05-02 12:40:09,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:40:09,468 INFO L225 Difference]: With dead ends: 146 [2021-05-02 12:40:09,468 INFO L226 Difference]: Without dead ends: 141 [2021-05-02 12:40:09,469 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2781 ImplicationChecksByTransitivity, 5893.4ms TimeCoverageRelationStatistics Valid=6525, Invalid=12381, Unknown=0, NotChecked=0, Total=18906 [2021-05-02 12:40:09,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-05-02 12:40:09,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2021-05-02 12:40:09,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 135 states have (on average 1.0074074074074073) internal successors, (136), 135 states have internal predecessors, (136), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:09,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 140 transitions. [2021-05-02 12:40:09,474 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 140 transitions. Word has length 137 [2021-05-02 12:40:09,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:40:09,475 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 140 transitions. [2021-05-02 12:40:09,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 72 states, 72 states have (on average 1.9305555555555556) internal successors, (139), 69 states have internal predecessors, (139), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:09,475 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 140 transitions. [2021-05-02 12:40:09,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-05-02 12:40:09,475 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:40:09,475 INFO L523 BasicCegarLoop]: trace histogram [64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:40:09,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:40:09,689 INFO L428 AbstractCegarLoop]: === Iteration 65 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:40:09,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:40:09,689 INFO L82 PathProgramCache]: Analyzing trace with hash -2024817516, now seen corresponding path program 64 times [2021-05-02 12:40:09,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:40:09,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651290108] [2021-05-02 12:40:09,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:40:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:11,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:40:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:11,943 INFO L134 CoverageAnalysis]: Checked inductivity of 4096 backedges. 0 proven. 4096 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:11,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:40:11,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651290108] [2021-05-02 12:40:11,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651290108] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:11,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342366190] [2021-05-02 12:40:11,943 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:40:12,067 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:40:12,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:40:12,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 68 conjunts are in the unsatisfiable core [2021-05-02 12:40:12,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:40:12,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:12,430 INFO L134 CoverageAnalysis]: Checked inductivity of 4096 backedges. 0 proven. 4096 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:12,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342366190] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:12,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:40:12,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 69] total 73 [2021-05-02 12:40:12,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003912295] [2021-05-02 12:40:12,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states [2021-05-02 12:40:12,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:40:12,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-05-02 12:40:12,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2290, Invalid=2966, Unknown=0, NotChecked=0, Total=5256 [2021-05-02 12:40:12,432 INFO L87 Difference]: Start difference. First operand 140 states and 140 transitions. Second operand has 73 states, 73 states have (on average 1.9315068493150684) internal successors, (141), 70 states have internal predecessors, (141), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:16,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:40:16,616 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2021-05-02 12:40:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-05-02 12:40:16,616 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 1.9315068493150684) internal successors, (141), 70 states have internal predecessors, (141), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2021-05-02 12:40:16,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:40:16,617 INFO L225 Difference]: With dead ends: 148 [2021-05-02 12:40:16,617 INFO L226 Difference]: Without dead ends: 143 [2021-05-02 12:40:16,619 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2857 ImplicationChecksByTransitivity, 5988.0ms TimeCoverageRelationStatistics Valid=6724, Invalid=12736, Unknown=0, NotChecked=0, Total=19460 [2021-05-02 12:40:16,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-05-02 12:40:16,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 142. [2021-05-02 12:40:16,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 137 states have (on average 1.0072992700729928) internal successors, (138), 137 states have internal predecessors, (138), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:16,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 142 transitions. [2021-05-02 12:40:16,624 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 142 transitions. Word has length 139 [2021-05-02 12:40:16,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:40:16,624 INFO L480 AbstractCegarLoop]: Abstraction has 142 states and 142 transitions. [2021-05-02 12:40:16,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 73 states, 73 states have (on average 1.9315068493150684) internal successors, (141), 70 states have internal predecessors, (141), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:16,625 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 142 transitions. [2021-05-02 12:40:16,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-05-02 12:40:16,625 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:40:16,625 INFO L523 BasicCegarLoop]: trace histogram [65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:40:16,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:40:16,845 INFO L428 AbstractCegarLoop]: === Iteration 66 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:40:16,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:40:16,845 INFO L82 PathProgramCache]: Analyzing trace with hash 870700624, now seen corresponding path program 65 times [2021-05-02 12:40:16,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:40:16,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557570451] [2021-05-02 12:40:16,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:40:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:19,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:40:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:19,255 INFO L134 CoverageAnalysis]: Checked inductivity of 4225 backedges. 0 proven. 4225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:19,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:40:19,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557570451] [2021-05-02 12:40:19,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557570451] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:19,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918394729] [2021-05-02 12:40:19,255 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:40:19,443 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2021-05-02 12:40:19,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:40:19,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 72 conjunts are in the unsatisfiable core [2021-05-02 12:40:19,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:40:19,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:19,787 INFO L134 CoverageAnalysis]: Checked inductivity of 4225 backedges. 0 proven. 4225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:19,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918394729] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:19,788 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:40:19,788 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 70] total 74 [2021-05-02 12:40:19,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844664569] [2021-05-02 12:40:19,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 74 states [2021-05-02 12:40:19,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:40:19,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-05-02 12:40:19,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2358, Invalid=3044, Unknown=0, NotChecked=0, Total=5402 [2021-05-02 12:40:19,789 INFO L87 Difference]: Start difference. First operand 142 states and 142 transitions. Second operand has 74 states, 74 states have (on average 1.9324324324324325) internal successors, (143), 71 states have internal predecessors, (143), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:23,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:40:23,733 INFO L93 Difference]: Finished difference Result 150 states and 150 transitions. [2021-05-02 12:40:23,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-05-02 12:40:23,734 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 1.9324324324324325) internal successors, (143), 71 states have internal predecessors, (143), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 141 [2021-05-02 12:40:23,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:40:23,735 INFO L225 Difference]: With dead ends: 150 [2021-05-02 12:40:23,735 INFO L226 Difference]: Without dead ends: 145 [2021-05-02 12:40:23,737 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2934 ImplicationChecksByTransitivity, 5985.2ms TimeCoverageRelationStatistics Valid=6926, Invalid=13096, Unknown=0, NotChecked=0, Total=20022 [2021-05-02 12:40:23,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-05-02 12:40:23,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 144. [2021-05-02 12:40:23,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 139 states have (on average 1.0071942446043165) internal successors, (140), 139 states have internal predecessors, (140), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:23,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2021-05-02 12:40:23,746 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 141 [2021-05-02 12:40:23,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:40:23,746 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2021-05-02 12:40:23,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 74 states, 74 states have (on average 1.9324324324324325) internal successors, (143), 71 states have internal predecessors, (143), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:23,747 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2021-05-02 12:40:23,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-05-02 12:40:23,747 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:40:23,747 INFO L523 BasicCegarLoop]: trace histogram [66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:40:23,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-05-02 12:40:23,971 INFO L428 AbstractCegarLoop]: === Iteration 67 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:40:23,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:40:23,971 INFO L82 PathProgramCache]: Analyzing trace with hash 324825356, now seen corresponding path program 66 times [2021-05-02 12:40:23,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:40:23,972 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063165875] [2021-05-02 12:40:23,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:40:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:26,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:40:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4356 backedges. 0 proven. 4356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:26,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:40:26,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063165875] [2021-05-02 12:40:26,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063165875] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:26,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220809086] [2021-05-02 12:40:26,370 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:40:26,720 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2021-05-02 12:40:26,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:40:26,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 73 conjunts are in the unsatisfiable core [2021-05-02 12:40:26,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:40:26,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:26,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:27,110 INFO L134 CoverageAnalysis]: Checked inductivity of 4356 backedges. 0 proven. 4356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:27,111 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220809086] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:27,111 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:40:27,111 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 71] total 75 [2021-05-02 12:40:27,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775264719] [2021-05-02 12:40:27,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 75 states [2021-05-02 12:40:27,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:40:27,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-05-02 12:40:27,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2427, Invalid=3123, Unknown=0, NotChecked=0, Total=5550 [2021-05-02 12:40:27,113 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand has 75 states, 75 states have (on average 1.9333333333333333) internal successors, (145), 72 states have internal predecessors, (145), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:31,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:40:31,044 INFO L93 Difference]: Finished difference Result 152 states and 152 transitions. [2021-05-02 12:40:31,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-05-02 12:40:31,045 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 1.9333333333333333) internal successors, (145), 72 states have internal predecessors, (145), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2021-05-02 12:40:31,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:40:31,045 INFO L225 Difference]: With dead ends: 152 [2021-05-02 12:40:31,046 INFO L226 Difference]: Without dead ends: 147 [2021-05-02 12:40:31,047 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3012 ImplicationChecksByTransitivity, 5896.7ms TimeCoverageRelationStatistics Valid=7131, Invalid=13461, Unknown=0, NotChecked=0, Total=20592 [2021-05-02 12:40:31,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-05-02 12:40:31,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2021-05-02 12:40:31,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 141 states have (on average 1.0070921985815602) internal successors, (142), 141 states have internal predecessors, (142), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:31,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2021-05-02 12:40:31,053 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 143 [2021-05-02 12:40:31,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:40:31,053 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2021-05-02 12:40:31,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 75 states, 75 states have (on average 1.9333333333333333) internal successors, (145), 72 states have internal predecessors, (145), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:31,053 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2021-05-02 12:40:31,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-05-02 12:40:31,054 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:40:31,054 INFO L523 BasicCegarLoop]: trace histogram [67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:40:31,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-05-02 12:40:31,269 INFO L428 AbstractCegarLoop]: === Iteration 68 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:40:31,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:40:31,269 INFO L82 PathProgramCache]: Analyzing trace with hash -275297080, now seen corresponding path program 67 times [2021-05-02 12:40:31,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:40:31,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063726622] [2021-05-02 12:40:31,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:40:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:33,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:40:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:33,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4489 backedges. 0 proven. 4489 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:33,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:40:33,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063726622] [2021-05-02 12:40:33,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063726622] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:33,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560492801] [2021-05-02 12:40:33,939 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:40:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:34,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 74 conjunts are in the unsatisfiable core [2021-05-02 12:40:34,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:40:34,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:34,453 INFO L134 CoverageAnalysis]: Checked inductivity of 4489 backedges. 0 proven. 4489 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:34,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560492801] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:34,454 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:40:34,454 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 72] total 76 [2021-05-02 12:40:34,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568494497] [2021-05-02 12:40:34,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-05-02 12:40:34,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:40:34,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-05-02 12:40:34,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2497, Invalid=3203, Unknown=0, NotChecked=0, Total=5700 [2021-05-02 12:40:34,456 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand has 76 states, 76 states have (on average 1.9342105263157894) internal successors, (147), 73 states have internal predecessors, (147), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:38,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:40:38,687 INFO L93 Difference]: Finished difference Result 154 states and 154 transitions. [2021-05-02 12:40:38,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-05-02 12:40:38,688 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 1.9342105263157894) internal successors, (147), 73 states have internal predecessors, (147), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2021-05-02 12:40:38,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:40:38,689 INFO L225 Difference]: With dead ends: 154 [2021-05-02 12:40:38,689 INFO L226 Difference]: Without dead ends: 149 [2021-05-02 12:40:38,692 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3091 ImplicationChecksByTransitivity, 6521.6ms TimeCoverageRelationStatistics Valid=7339, Invalid=13831, Unknown=0, NotChecked=0, Total=21170 [2021-05-02 12:40:38,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-05-02 12:40:38,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 148. [2021-05-02 12:40:38,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.006993006993007) internal successors, (144), 143 states have internal predecessors, (144), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 148 transitions. [2021-05-02 12:40:38,729 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 148 transitions. Word has length 145 [2021-05-02 12:40:38,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:40:38,729 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 148 transitions. [2021-05-02 12:40:38,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 76 states, 76 states have (on average 1.9342105263157894) internal successors, (147), 73 states have internal predecessors, (147), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:38,731 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 148 transitions. [2021-05-02 12:40:38,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-05-02 12:40:38,731 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:40:38,732 INFO L523 BasicCegarLoop]: trace histogram [68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:40:38,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:40:38,949 INFO L428 AbstractCegarLoop]: === Iteration 69 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:40:38,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:40:38,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1467340412, now seen corresponding path program 68 times [2021-05-02 12:40:38,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:40:38,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715410973] [2021-05-02 12:40:38,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:40:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:41,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:40:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:41,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4624 backedges. 0 proven. 4624 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:41,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:40:41,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715410973] [2021-05-02 12:40:41,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715410973] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:41,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345935000] [2021-05-02 12:40:41,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:40:41,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:40:41,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:40:41,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 77 conjunts are in the unsatisfiable core [2021-05-02 12:40:41,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:40:41,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:42,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4624 backedges. 0 proven. 4624 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:42,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345935000] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:42,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:40:42,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 78 [2021-05-02 12:40:42,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049129722] [2021-05-02 12:40:42,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states [2021-05-02 12:40:42,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:40:42,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-05-02 12:40:42,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2570, Invalid=3436, Unknown=0, NotChecked=0, Total=6006 [2021-05-02 12:40:42,064 INFO L87 Difference]: Start difference. First operand 148 states and 148 transitions. Second operand has 78 states, 78 states have (on average 1.9230769230769231) internal successors, (150), 75 states have internal predecessors, (150), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 12:40:47,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:40:47,036 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2021-05-02 12:40:47,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-05-02 12:40:47,037 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 1.9230769230769231) internal successors, (150), 75 states have internal predecessors, (150), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 147 [2021-05-02 12:40:47,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:40:47,045 INFO L225 Difference]: With dead ends: 156 [2021-05-02 12:40:47,045 INFO L226 Difference]: Without dead ends: 151 [2021-05-02 12:40:47,046 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3242 ImplicationChecksByTransitivity, 6937.7ms TimeCoverageRelationStatistics Valid=7698, Invalid=14652, Unknown=0, NotChecked=0, Total=22350 [2021-05-02 12:40:47,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-05-02 12:40:47,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 150. [2021-05-02 12:40:47,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.006896551724138) internal successors, (146), 145 states have internal predecessors, (146), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:47,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 150 transitions. [2021-05-02 12:40:47,052 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 150 transitions. Word has length 147 [2021-05-02 12:40:47,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:40:47,052 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 150 transitions. [2021-05-02 12:40:47,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 78 states, 78 states have (on average 1.9230769230769231) internal successors, (150), 75 states have internal predecessors, (150), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 12:40:47,053 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 150 transitions. [2021-05-02 12:40:47,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-05-02 12:40:47,053 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:40:47,053 INFO L523 BasicCegarLoop]: trace histogram [69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:40:47,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-05-02 12:40:47,254 INFO L428 AbstractCegarLoop]: === Iteration 70 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:40:47,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:40:47,254 INFO L82 PathProgramCache]: Analyzing trace with hash -264714432, now seen corresponding path program 69 times [2021-05-02 12:40:47,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:40:47,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226945360] [2021-05-02 12:40:47,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:40:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:49,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:40:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:49,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4761 backedges. 0 proven. 4761 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:49,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:40:49,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226945360] [2021-05-02 12:40:49,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226945360] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:49,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513960273] [2021-05-02 12:40:49,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:40:50,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 70 check-sat command(s) [2021-05-02 12:40:50,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:40:50,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 76 conjunts are in the unsatisfiable core [2021-05-02 12:40:50,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:40:50,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4761 backedges. 0 proven. 4761 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:50,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513960273] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:50,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:40:50,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 74] total 78 [2021-05-02 12:40:50,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205449533] [2021-05-02 12:40:50,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states [2021-05-02 12:40:50,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:40:50,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-05-02 12:40:50,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2640, Invalid=3366, Unknown=0, NotChecked=0, Total=6006 [2021-05-02 12:40:50,683 INFO L87 Difference]: Start difference. First operand 150 states and 150 transitions. Second operand has 78 states, 78 states have (on average 1.935897435897436) internal successors, (151), 75 states have internal predecessors, (151), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:55,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:40:55,525 INFO L93 Difference]: Finished difference Result 158 states and 158 transitions. [2021-05-02 12:40:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-05-02 12:40:55,526 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 1.935897435897436) internal successors, (151), 75 states have internal predecessors, (151), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2021-05-02 12:40:55,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:40:55,527 INFO L225 Difference]: With dead ends: 158 [2021-05-02 12:40:55,527 INFO L226 Difference]: Without dead ends: 153 [2021-05-02 12:40:55,530 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3252 ImplicationChecksByTransitivity, 6897.7ms TimeCoverageRelationStatistics Valid=7764, Invalid=14586, Unknown=0, NotChecked=0, Total=22350 [2021-05-02 12:40:55,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-05-02 12:40:55,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 152. [2021-05-02 12:40:55,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 147 states have (on average 1.0068027210884354) internal successors, (148), 147 states have internal predecessors, (148), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:55,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2021-05-02 12:40:55,542 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 149 [2021-05-02 12:40:55,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:40:55,542 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2021-05-02 12:40:55,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 78 states, 78 states have (on average 1.935897435897436) internal successors, (151), 75 states have internal predecessors, (151), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:40:55,542 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2021-05-02 12:40:55,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-05-02 12:40:55,543 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:40:55,543 INFO L523 BasicCegarLoop]: trace histogram [70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:40:55,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-05-02 12:40:55,769 INFO L428 AbstractCegarLoop]: === Iteration 71 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:40:55,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:40:55,770 INFO L82 PathProgramCache]: Analyzing trace with hash 112649724, now seen corresponding path program 70 times [2021-05-02 12:40:55,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:40:55,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168730871] [2021-05-02 12:40:55,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:40:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:58,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:40:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:58,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 4900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:58,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:40:58,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168730871] [2021-05-02 12:40:58,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168730871] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:58,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117090172] [2021-05-02 12:40:58,861 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:40:59,013 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:40:59,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:40:59,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 74 conjunts are in the unsatisfiable core [2021-05-02 12:40:59,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:40:59,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 4900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:40:59,422 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117090172] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:59,422 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:40:59,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 75] total 79 [2021-05-02 12:40:59,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244710884] [2021-05-02 12:40:59,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states [2021-05-02 12:40:59,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:40:59,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-05-02 12:40:59,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2713, Invalid=3449, Unknown=0, NotChecked=0, Total=6162 [2021-05-02 12:40:59,424 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand has 79 states, 79 states have (on average 1.9367088607594938) internal successors, (153), 76 states have internal predecessors, (153), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:03,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:41:03,410 INFO L93 Difference]: Finished difference Result 160 states and 160 transitions. [2021-05-02 12:41:03,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-05-02 12:41:03,411 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 1.9367088607594938) internal successors, (153), 76 states have internal predecessors, (153), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2021-05-02 12:41:03,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:41:03,412 INFO L225 Difference]: With dead ends: 160 [2021-05-02 12:41:03,412 INFO L226 Difference]: Without dead ends: 155 [2021-05-02 12:41:03,413 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3334 ImplicationChecksByTransitivity, 6596.5ms TimeCoverageRelationStatistics Valid=7981, Invalid=14971, Unknown=0, NotChecked=0, Total=22952 [2021-05-02 12:41:03,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-05-02 12:41:03,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 154. [2021-05-02 12:41:03,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.0067114093959733) internal successors, (150), 149 states have internal predecessors, (150), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:03,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2021-05-02 12:41:03,421 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 151 [2021-05-02 12:41:03,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:41:03,421 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2021-05-02 12:41:03,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 79 states, 79 states have (on average 1.9367088607594938) internal successors, (153), 76 states have internal predecessors, (153), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:03,421 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2021-05-02 12:41:03,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-05-02 12:41:03,433 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:41:03,433 INFO L523 BasicCegarLoop]: trace histogram [71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:41:03,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2021-05-02 12:41:03,634 INFO L428 AbstractCegarLoop]: === Iteration 72 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:41:03,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:41:03,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1982350776, now seen corresponding path program 71 times [2021-05-02 12:41:03,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:41:03,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885293318] [2021-05-02 12:41:03,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:41:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:06,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:41:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:06,538 INFO L134 CoverageAnalysis]: Checked inductivity of 5041 backedges. 0 proven. 5041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:41:06,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:41:06,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885293318] [2021-05-02 12:41:06,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885293318] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:06,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200539922] [2021-05-02 12:41:06,538 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:41:06,818 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 72 check-sat command(s) [2021-05-02 12:41:06,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:41:06,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 78 conjunts are in the unsatisfiable core [2021-05-02 12:41:06,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:41:06,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,435 INFO L134 CoverageAnalysis]: Checked inductivity of 5041 backedges. 0 proven. 5041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:41:07,435 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200539922] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:07,435 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:41:07,435 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 76] total 80 [2021-05-02 12:41:07,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848106891] [2021-05-02 12:41:07,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 80 states [2021-05-02 12:41:07,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:41:07,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-05-02 12:41:07,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2787, Invalid=3533, Unknown=0, NotChecked=0, Total=6320 [2021-05-02 12:41:07,438 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand has 80 states, 80 states have (on average 1.9375) internal successors, (155), 77 states have internal predecessors, (155), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:12,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:41:12,041 INFO L93 Difference]: Finished difference Result 162 states and 162 transitions. [2021-05-02 12:41:12,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-05-02 12:41:12,041 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 1.9375) internal successors, (155), 77 states have internal predecessors, (155), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2021-05-02 12:41:12,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:41:12,042 INFO L225 Difference]: With dead ends: 162 [2021-05-02 12:41:12,042 INFO L226 Difference]: Without dead ends: 157 [2021-05-02 12:41:12,044 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3417 ImplicationChecksByTransitivity, 7032.0ms TimeCoverageRelationStatistics Valid=8201, Invalid=15361, Unknown=0, NotChecked=0, Total=23562 [2021-05-02 12:41:12,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-05-02 12:41:12,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2021-05-02 12:41:12,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 151 states have (on average 1.0066225165562914) internal successors, (152), 151 states have internal predecessors, (152), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:12,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 156 transitions. [2021-05-02 12:41:12,049 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 156 transitions. Word has length 153 [2021-05-02 12:41:12,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:41:12,049 INFO L480 AbstractCegarLoop]: Abstraction has 156 states and 156 transitions. [2021-05-02 12:41:12,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 80 states, 80 states have (on average 1.9375) internal successors, (155), 77 states have internal predecessors, (155), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:12,049 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 156 transitions. [2021-05-02 12:41:12,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-05-02 12:41:12,050 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:41:12,050 INFO L523 BasicCegarLoop]: trace histogram [72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:41:12,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:41:12,265 INFO L428 AbstractCegarLoop]: === Iteration 73 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:41:12,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:41:12,265 INFO L82 PathProgramCache]: Analyzing trace with hash -826235276, now seen corresponding path program 72 times [2021-05-02 12:41:12,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:41:12,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974885788] [2021-05-02 12:41:12,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:41:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:15,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:41:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:15,078 INFO L134 CoverageAnalysis]: Checked inductivity of 5184 backedges. 0 proven. 5184 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:41:15,078 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:41:15,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974885788] [2021-05-02 12:41:15,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974885788] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:15,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056847197] [2021-05-02 12:41:15,079 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:41:15,408 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 73 check-sat command(s) [2021-05-02 12:41:15,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:41:15,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 79 conjunts are in the unsatisfiable core [2021-05-02 12:41:15,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:41:15,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 5184 backedges. 0 proven. 5184 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:41:15,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056847197] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:15,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:41:15,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 77] total 81 [2021-05-02 12:41:15,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23802733] [2021-05-02 12:41:15,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 81 states [2021-05-02 12:41:15,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:41:15,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-05-02 12:41:15,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2862, Invalid=3618, Unknown=0, NotChecked=0, Total=6480 [2021-05-02 12:41:15,890 INFO L87 Difference]: Start difference. First operand 156 states and 156 transitions. Second operand has 81 states, 81 states have (on average 1.9382716049382716) internal successors, (157), 78 states have internal predecessors, (157), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:20,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:41:20,417 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2021-05-02 12:41:20,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-05-02 12:41:20,418 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 81 states have (on average 1.9382716049382716) internal successors, (157), 78 states have internal predecessors, (157), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2021-05-02 12:41:20,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:41:20,419 INFO L225 Difference]: With dead ends: 164 [2021-05-02 12:41:20,419 INFO L226 Difference]: Without dead ends: 159 [2021-05-02 12:41:20,421 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3501 ImplicationChecksByTransitivity, 6874.8ms TimeCoverageRelationStatistics Valid=8424, Invalid=15756, Unknown=0, NotChecked=0, Total=24180 [2021-05-02 12:41:20,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-05-02 12:41:20,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2021-05-02 12:41:20,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 153 states have (on average 1.0065359477124183) internal successors, (154), 153 states have internal predecessors, (154), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:20,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 158 transitions. [2021-05-02 12:41:20,431 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 158 transitions. Word has length 155 [2021-05-02 12:41:20,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:41:20,431 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 158 transitions. [2021-05-02 12:41:20,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 81 states, 81 states have (on average 1.9382716049382716) internal successors, (157), 78 states have internal predecessors, (157), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:20,431 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 158 transitions. [2021-05-02 12:41:20,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-05-02 12:41:20,432 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:41:20,432 INFO L523 BasicCegarLoop]: trace histogram [73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:41:20,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:41:20,653 INFO L428 AbstractCegarLoop]: === Iteration 74 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:41:20,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:41:20,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1656997936, now seen corresponding path program 73 times [2021-05-02 12:41:20,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:41:20,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230733601] [2021-05-02 12:41:20,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:41:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:23,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:41:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:23,656 INFO L134 CoverageAnalysis]: Checked inductivity of 5329 backedges. 0 proven. 5329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:41:23,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:41:23,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230733601] [2021-05-02 12:41:23,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230733601] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:23,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424660353] [2021-05-02 12:41:23,657 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:41:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:23,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 80 conjunts are in the unsatisfiable core [2021-05-02 12:41:23,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:41:23,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:23,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 5329 backedges. 0 proven. 5329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:41:24,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424660353] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:24,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:41:24,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 78] total 82 [2021-05-02 12:41:24,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601742884] [2021-05-02 12:41:24,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states [2021-05-02 12:41:24,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:41:24,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-05-02 12:41:24,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2938, Invalid=3704, Unknown=0, NotChecked=0, Total=6642 [2021-05-02 12:41:24,260 INFO L87 Difference]: Start difference. First operand 158 states and 158 transitions. Second operand has 82 states, 82 states have (on average 1.9390243902439024) internal successors, (159), 79 states have internal predecessors, (159), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:29,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:41:29,311 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2021-05-02 12:41:29,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-05-02 12:41:29,311 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 1.9390243902439024) internal successors, (159), 79 states have internal predecessors, (159), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2021-05-02 12:41:29,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:41:29,312 INFO L225 Difference]: With dead ends: 166 [2021-05-02 12:41:29,312 INFO L226 Difference]: Without dead ends: 161 [2021-05-02 12:41:29,313 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3586 ImplicationChecksByTransitivity, 7517.9ms TimeCoverageRelationStatistics Valid=8650, Invalid=16156, Unknown=0, NotChecked=0, Total=24806 [2021-05-02 12:41:29,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-05-02 12:41:29,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 160. [2021-05-02 12:41:29,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.0064516129032257) internal successors, (156), 155 states have internal predecessors, (156), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:29,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 160 transitions. [2021-05-02 12:41:29,319 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 160 transitions. Word has length 157 [2021-05-02 12:41:29,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:41:29,319 INFO L480 AbstractCegarLoop]: Abstraction has 160 states and 160 transitions. [2021-05-02 12:41:29,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 82 states, 82 states have (on average 1.9390243902439024) internal successors, (159), 79 states have internal predecessors, (159), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:29,319 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 160 transitions. [2021-05-02 12:41:29,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-05-02 12:41:29,320 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:41:29,320 INFO L523 BasicCegarLoop]: trace histogram [74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:41:29,544 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:41:29,545 INFO L428 AbstractCegarLoop]: === Iteration 75 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:41:29,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:41:29,545 INFO L82 PathProgramCache]: Analyzing trace with hash 42298092, now seen corresponding path program 74 times [2021-05-02 12:41:29,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:41:29,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747773036] [2021-05-02 12:41:29,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:41:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:32,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:41:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:32,685 INFO L134 CoverageAnalysis]: Checked inductivity of 5476 backedges. 0 proven. 5476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:41:32,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:41:32,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747773036] [2021-05-02 12:41:32,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747773036] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:32,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310133323] [2021-05-02 12:41:32,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:41:32,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:41:32,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:41:32,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 81 conjunts are in the unsatisfiable core [2021-05-02 12:41:32,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:41:32,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:32,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5476 backedges. 0 proven. 5476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:41:33,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310133323] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:33,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:41:33,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 79] total 83 [2021-05-02 12:41:33,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580416542] [2021-05-02 12:41:33,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states [2021-05-02 12:41:33,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:41:33,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-05-02 12:41:33,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3015, Invalid=3791, Unknown=0, NotChecked=0, Total=6806 [2021-05-02 12:41:33,411 INFO L87 Difference]: Start difference. First operand 160 states and 160 transitions. Second operand has 83 states, 83 states have (on average 1.9397590361445782) internal successors, (161), 80 states have internal predecessors, (161), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:38,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:41:38,828 INFO L93 Difference]: Finished difference Result 168 states and 168 transitions. [2021-05-02 12:41:38,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-05-02 12:41:38,829 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 1.9397590361445782) internal successors, (161), 80 states have internal predecessors, (161), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2021-05-02 12:41:38,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:41:38,829 INFO L225 Difference]: With dead ends: 168 [2021-05-02 12:41:38,829 INFO L226 Difference]: Without dead ends: 163 [2021-05-02 12:41:38,831 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3672 ImplicationChecksByTransitivity, 7981.6ms TimeCoverageRelationStatistics Valid=8879, Invalid=16561, Unknown=0, NotChecked=0, Total=25440 [2021-05-02 12:41:38,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-05-02 12:41:38,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 162. [2021-05-02 12:41:38,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.0063694267515924) internal successors, (158), 157 states have internal predecessors, (158), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:38,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2021-05-02 12:41:38,838 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 159 [2021-05-02 12:41:38,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:41:38,838 INFO L480 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2021-05-02 12:41:38,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 83 states, 83 states have (on average 1.9397590361445782) internal successors, (161), 80 states have internal predecessors, (161), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:38,838 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2021-05-02 12:41:38,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-05-02 12:41:38,838 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:41:38,839 INFO L523 BasicCegarLoop]: trace histogram [75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:41:39,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2021-05-02 12:41:39,053 INFO L428 AbstractCegarLoop]: === Iteration 76 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:41:39,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:41:39,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1201058136, now seen corresponding path program 75 times [2021-05-02 12:41:39,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:41:39,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781908787] [2021-05-02 12:41:39,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:41:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:41,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:41:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:41,720 INFO L134 CoverageAnalysis]: Checked inductivity of 5625 backedges. 0 proven. 5625 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:41:41,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:41:41,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781908787] [2021-05-02 12:41:41,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781908787] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:41,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859778028] [2021-05-02 12:41:41,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:41:42,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 76 check-sat command(s) [2021-05-02 12:41:42,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:41:42,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 82 conjunts are in the unsatisfiable core [2021-05-02 12:41:42,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:41:42,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:42,536 INFO L134 CoverageAnalysis]: Checked inductivity of 5625 backedges. 0 proven. 5625 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:41:42,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859778028] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:42,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:41:42,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 80] total 84 [2021-05-02 12:41:42,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463536000] [2021-05-02 12:41:42,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states [2021-05-02 12:41:42,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:41:42,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-05-02 12:41:42,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3093, Invalid=3879, Unknown=0, NotChecked=0, Total=6972 [2021-05-02 12:41:42,539 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand has 84 states, 84 states have (on average 1.9404761904761905) internal successors, (163), 81 states have internal predecessors, (163), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:47,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:41:47,267 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2021-05-02 12:41:47,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-05-02 12:41:47,268 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 84 states have (on average 1.9404761904761905) internal successors, (163), 81 states have internal predecessors, (163), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2021-05-02 12:41:47,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:41:47,269 INFO L225 Difference]: With dead ends: 170 [2021-05-02 12:41:47,269 INFO L226 Difference]: Without dead ends: 165 [2021-05-02 12:41:47,270 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3759 ImplicationChecksByTransitivity, 6923.7ms TimeCoverageRelationStatistics Valid=9111, Invalid=16971, Unknown=0, NotChecked=0, Total=26082 [2021-05-02 12:41:47,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-05-02 12:41:47,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 164. [2021-05-02 12:41:47,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 159 states have (on average 1.0062893081761006) internal successors, (160), 159 states have internal predecessors, (160), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:47,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 164 transitions. [2021-05-02 12:41:47,283 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 164 transitions. Word has length 161 [2021-05-02 12:41:47,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:41:47,283 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 164 transitions. [2021-05-02 12:41:47,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 84 states, 84 states have (on average 1.9404761904761905) internal successors, (163), 81 states have internal predecessors, (163), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:47,284 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 164 transitions. [2021-05-02 12:41:47,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-05-02 12:41:47,284 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:41:47,284 INFO L523 BasicCegarLoop]: trace histogram [76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:41:47,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:41:47,509 INFO L428 AbstractCegarLoop]: === Iteration 77 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:41:47,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:41:47,509 INFO L82 PathProgramCache]: Analyzing trace with hash -2065484956, now seen corresponding path program 76 times [2021-05-02 12:41:47,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:41:47,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696673373] [2021-05-02 12:41:47,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:41:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:51,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:41:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:41:51,442 INFO L134 CoverageAnalysis]: Checked inductivity of 5776 backedges. 0 proven. 5776 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:41:51,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:41:51,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696673373] [2021-05-02 12:41:51,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696673373] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:51,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372613484] [2021-05-02 12:41:51,443 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:41:51,588 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:41:51,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:41:51,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 80 conjunts are in the unsatisfiable core [2021-05-02 12:41:51,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:41:51,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:51,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:52,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5776 backedges. 0 proven. 5776 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:41:52,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372613484] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:52,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:41:52,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 81] total 85 [2021-05-02 12:41:52,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836909471] [2021-05-02 12:41:52,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states [2021-05-02 12:41:52,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:41:52,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2021-05-02 12:41:52,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3172, Invalid=3968, Unknown=0, NotChecked=0, Total=7140 [2021-05-02 12:41:52,238 INFO L87 Difference]: Start difference. First operand 164 states and 164 transitions. Second operand has 85 states, 85 states have (on average 1.9411764705882353) internal successors, (165), 82 states have internal predecessors, (165), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:57,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:41:57,849 INFO L93 Difference]: Finished difference Result 172 states and 172 transitions. [2021-05-02 12:41:57,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-05-02 12:41:57,850 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 85 states have (on average 1.9411764705882353) internal successors, (165), 82 states have internal predecessors, (165), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2021-05-02 12:41:57,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:41:57,851 INFO L225 Difference]: With dead ends: 172 [2021-05-02 12:41:57,851 INFO L226 Difference]: Without dead ends: 167 [2021-05-02 12:41:57,852 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3847 ImplicationChecksByTransitivity, 9044.8ms TimeCoverageRelationStatistics Valid=9346, Invalid=17386, Unknown=0, NotChecked=0, Total=26732 [2021-05-02 12:41:57,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-05-02 12:41:57,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 166. [2021-05-02 12:41:57,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 161 states have (on average 1.0062111801242235) internal successors, (162), 161 states have internal predecessors, (162), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:57,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2021-05-02 12:41:57,859 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 163 [2021-05-02 12:41:57,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:41:57,859 INFO L480 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2021-05-02 12:41:57,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 85 states, 85 states have (on average 1.9411764705882353) internal successors, (165), 82 states have internal predecessors, (165), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:41:57,859 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2021-05-02 12:41:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-05-02 12:41:57,860 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:41:57,860 INFO L523 BasicCegarLoop]: trace histogram [77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:41:58,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:41:58,080 INFO L428 AbstractCegarLoop]: === Iteration 78 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:41:58,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:41:58,081 INFO L82 PathProgramCache]: Analyzing trace with hash 443996448, now seen corresponding path program 77 times [2021-05-02 12:41:58,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:41:58,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315773440] [2021-05-02 12:41:58,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:41:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:00,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:42:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:00,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5929 backedges. 0 proven. 5929 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:00,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:42:00,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315773440] [2021-05-02 12:42:00,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315773440] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:00,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631767119] [2021-05-02 12:42:00,903 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:42:01,072 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 78 check-sat command(s) [2021-05-02 12:42:01,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:42:01,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 84 conjunts are in the unsatisfiable core [2021-05-02 12:42:01,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:42:01,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:01,527 INFO L134 CoverageAnalysis]: Checked inductivity of 5929 backedges. 0 proven. 5929 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:01,527 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631767119] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:01,527 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:42:01,527 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 82] total 86 [2021-05-02 12:42:01,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477658318] [2021-05-02 12:42:01,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 86 states [2021-05-02 12:42:01,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:42:01,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-05-02 12:42:01,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3252, Invalid=4058, Unknown=0, NotChecked=0, Total=7310 [2021-05-02 12:42:01,530 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand has 86 states, 86 states have (on average 1.941860465116279) internal successors, (167), 83 states have internal predecessors, (167), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:06,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:42:06,587 INFO L93 Difference]: Finished difference Result 174 states and 174 transitions. [2021-05-02 12:42:06,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-05-02 12:42:06,588 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 1.941860465116279) internal successors, (167), 83 states have internal predecessors, (167), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2021-05-02 12:42:06,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:42:06,588 INFO L225 Difference]: With dead ends: 174 [2021-05-02 12:42:06,589 INFO L226 Difference]: Without dead ends: 169 [2021-05-02 12:42:06,590 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3936 ImplicationChecksByTransitivity, 7350.6ms TimeCoverageRelationStatistics Valid=9584, Invalid=17806, Unknown=0, NotChecked=0, Total=27390 [2021-05-02 12:42:06,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-05-02 12:42:06,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 168. [2021-05-02 12:42:06,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 163 states have (on average 1.0061349693251533) internal successors, (164), 163 states have internal predecessors, (164), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:06,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 168 transitions. [2021-05-02 12:42:06,597 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 168 transitions. Word has length 165 [2021-05-02 12:42:06,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:42:06,597 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 168 transitions. [2021-05-02 12:42:06,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 86 states, 86 states have (on average 1.941860465116279) internal successors, (167), 83 states have internal predecessors, (167), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:06,597 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 168 transitions. [2021-05-02 12:42:06,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-05-02 12:42:06,598 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:42:06,598 INFO L523 BasicCegarLoop]: trace histogram [78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:42:06,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2021-05-02 12:42:06,813 INFO L428 AbstractCegarLoop]: === Iteration 79 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:42:06,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:42:06,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1715994660, now seen corresponding path program 78 times [2021-05-02 12:42:06,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:42:06,814 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870016428] [2021-05-02 12:42:06,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:42:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:10,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:42:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:10,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6084 backedges. 0 proven. 6084 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:10,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:42:10,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870016428] [2021-05-02 12:42:10,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870016428] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:10,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691459370] [2021-05-02 12:42:10,165 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:42:10,368 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 79 check-sat command(s) [2021-05-02 12:42:10,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:42:10,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 85 conjunts are in the unsatisfiable core [2021-05-02 12:42:10,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:42:10,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 6084 backedges. 0 proven. 6084 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:10,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691459370] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:10,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:42:10,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 83] total 87 [2021-05-02 12:42:10,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993493887] [2021-05-02 12:42:10,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 87 states [2021-05-02 12:42:10,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:42:10,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-05-02 12:42:10,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3333, Invalid=4149, Unknown=0, NotChecked=0, Total=7482 [2021-05-02 12:42:10,773 INFO L87 Difference]: Start difference. First operand 168 states and 168 transitions. Second operand has 87 states, 87 states have (on average 1.9425287356321839) internal successors, (169), 84 states have internal predecessors, (169), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:15,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:42:15,805 INFO L93 Difference]: Finished difference Result 176 states and 176 transitions. [2021-05-02 12:42:15,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-05-02 12:42:15,806 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 1.9425287356321839) internal successors, (169), 84 states have internal predecessors, (169), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2021-05-02 12:42:15,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:42:15,807 INFO L225 Difference]: With dead ends: 176 [2021-05-02 12:42:15,807 INFO L226 Difference]: Without dead ends: 171 [2021-05-02 12:42:15,809 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4026 ImplicationChecksByTransitivity, 7849.5ms TimeCoverageRelationStatistics Valid=9825, Invalid=18231, Unknown=0, NotChecked=0, Total=28056 [2021-05-02 12:42:15,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-05-02 12:42:15,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 170. [2021-05-02 12:42:15,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.006060606060606) internal successors, (166), 165 states have internal predecessors, (166), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:15,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 170 transitions. [2021-05-02 12:42:15,817 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 170 transitions. Word has length 167 [2021-05-02 12:42:15,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:42:15,817 INFO L480 AbstractCegarLoop]: Abstraction has 170 states and 170 transitions. [2021-05-02 12:42:15,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 87 states, 87 states have (on average 1.9425287356321839) internal successors, (169), 84 states have internal predecessors, (169), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:15,817 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 170 transitions. [2021-05-02 12:42:15,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-05-02 12:42:15,818 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:42:15,820 INFO L523 BasicCegarLoop]: trace histogram [79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:42:16,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-05-02 12:42:16,033 INFO L428 AbstractCegarLoop]: === Iteration 80 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:42:16,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:42:16,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1296721816, now seen corresponding path program 79 times [2021-05-02 12:42:16,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:42:16,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287374755] [2021-05-02 12:42:16,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:42:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:19,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:42:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 6241 backedges. 0 proven. 6241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:19,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:42:19,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287374755] [2021-05-02 12:42:19,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287374755] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:19,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527993346] [2021-05-02 12:42:19,655 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:42:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:19,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 86 conjunts are in the unsatisfiable core [2021-05-02 12:42:19,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:42:19,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,223 INFO L134 CoverageAnalysis]: Checked inductivity of 6241 backedges. 0 proven. 6241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:20,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527993346] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:20,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:42:20,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 84] total 88 [2021-05-02 12:42:20,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308020362] [2021-05-02 12:42:20,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states [2021-05-02 12:42:20,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:42:20,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-05-02 12:42:20,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3415, Invalid=4241, Unknown=0, NotChecked=0, Total=7656 [2021-05-02 12:42:20,225 INFO L87 Difference]: Start difference. First operand 170 states and 170 transitions. Second operand has 88 states, 88 states have (on average 1.9431818181818181) internal successors, (171), 85 states have internal predecessors, (171), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:25,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:42:25,713 INFO L93 Difference]: Finished difference Result 178 states and 178 transitions. [2021-05-02 12:42:25,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-05-02 12:42:25,713 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 1.9431818181818181) internal successors, (171), 85 states have internal predecessors, (171), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 169 [2021-05-02 12:42:25,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:42:25,714 INFO L225 Difference]: With dead ends: 178 [2021-05-02 12:42:25,714 INFO L226 Difference]: Without dead ends: 173 [2021-05-02 12:42:25,716 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4117 ImplicationChecksByTransitivity, 8587.9ms TimeCoverageRelationStatistics Valid=10069, Invalid=18661, Unknown=0, NotChecked=0, Total=28730 [2021-05-02 12:42:25,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-05-02 12:42:25,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 172. [2021-05-02 12:42:25,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.0059880239520957) internal successors, (168), 167 states have internal predecessors, (168), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:25,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 172 transitions. [2021-05-02 12:42:25,724 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 172 transitions. Word has length 169 [2021-05-02 12:42:25,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:42:25,724 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 172 transitions. [2021-05-02 12:42:25,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 88 states, 88 states have (on average 1.9431818181818181) internal successors, (171), 85 states have internal predecessors, (171), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:25,724 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 172 transitions. [2021-05-02 12:42:25,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-05-02 12:42:25,725 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:42:25,725 INFO L523 BasicCegarLoop]: trace histogram [80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:42:25,944 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:42:25,944 INFO L428 AbstractCegarLoop]: === Iteration 81 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:42:25,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:42:25,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1709297748, now seen corresponding path program 80 times [2021-05-02 12:42:25,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:42:25,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506648148] [2021-05-02 12:42:25,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:42:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:29,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:42:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:29,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6400 backedges. 0 proven. 6400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:29,194 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:42:29,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506648148] [2021-05-02 12:42:29,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506648148] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:29,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992463226] [2021-05-02 12:42:29,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:42:29,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:42:29,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:42:29,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 87 conjunts are in the unsatisfiable core [2021-05-02 12:42:29,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:42:29,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:29,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6400 backedges. 0 proven. 6400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:29,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992463226] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:29,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:42:29,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 85] total 89 [2021-05-02 12:42:29,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882567938] [2021-05-02 12:42:29,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states [2021-05-02 12:42:29,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:42:29,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-05-02 12:42:29,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3498, Invalid=4334, Unknown=0, NotChecked=0, Total=7832 [2021-05-02 12:42:29,783 INFO L87 Difference]: Start difference. First operand 172 states and 172 transitions. Second operand has 89 states, 89 states have (on average 1.9438202247191012) internal successors, (173), 86 states have internal predecessors, (173), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:34,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:42:34,770 INFO L93 Difference]: Finished difference Result 180 states and 180 transitions. [2021-05-02 12:42:34,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-05-02 12:42:34,770 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 89 states have (on average 1.9438202247191012) internal successors, (173), 86 states have internal predecessors, (173), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2021-05-02 12:42:34,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:42:34,771 INFO L225 Difference]: With dead ends: 180 [2021-05-02 12:42:34,771 INFO L226 Difference]: Without dead ends: 175 [2021-05-02 12:42:34,773 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4209 ImplicationChecksByTransitivity, 7713.6ms TimeCoverageRelationStatistics Valid=10316, Invalid=19096, Unknown=0, NotChecked=0, Total=29412 [2021-05-02 12:42:34,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-05-02 12:42:34,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 174. [2021-05-02 12:42:34,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.0059171597633136) internal successors, (170), 169 states have internal predecessors, (170), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:34,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2021-05-02 12:42:34,778 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 171 [2021-05-02 12:42:34,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:42:34,779 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2021-05-02 12:42:34,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 89 states, 89 states have (on average 1.9438202247191012) internal successors, (173), 86 states have internal predecessors, (173), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:34,779 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2021-05-02 12:42:34,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-05-02 12:42:34,779 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:42:34,779 INFO L523 BasicCegarLoop]: trace histogram [81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:42:34,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:42:34,998 INFO L428 AbstractCegarLoop]: === Iteration 82 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:42:34,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:42:34,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1237190128, now seen corresponding path program 81 times [2021-05-02 12:42:34,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:42:34,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114991254] [2021-05-02 12:42:34,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:42:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:38,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:42:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:38,562 INFO L134 CoverageAnalysis]: Checked inductivity of 6561 backedges. 0 proven. 6561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:38,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:42:38,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114991254] [2021-05-02 12:42:38,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114991254] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:38,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687494117] [2021-05-02 12:42:38,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:42:38,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 82 check-sat command(s) [2021-05-02 12:42:38,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:42:38,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 88 conjunts are in the unsatisfiable core [2021-05-02 12:42:38,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:42:38,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:38,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:39,278 INFO L134 CoverageAnalysis]: Checked inductivity of 6561 backedges. 0 proven. 6561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:39,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687494117] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:39,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:42:39,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 86] total 90 [2021-05-02 12:42:39,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251997964] [2021-05-02 12:42:39,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-05-02 12:42:39,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:42:39,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-05-02 12:42:39,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3582, Invalid=4428, Unknown=0, NotChecked=0, Total=8010 [2021-05-02 12:42:39,281 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand has 90 states, 90 states have (on average 1.9444444444444444) internal successors, (175), 87 states have internal predecessors, (175), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:44,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:42:44,836 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2021-05-02 12:42:44,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-05-02 12:42:44,837 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 90 states have (on average 1.9444444444444444) internal successors, (175), 87 states have internal predecessors, (175), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2021-05-02 12:42:44,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:42:44,838 INFO L225 Difference]: With dead ends: 182 [2021-05-02 12:42:44,838 INFO L226 Difference]: Without dead ends: 177 [2021-05-02 12:42:44,839 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4302 ImplicationChecksByTransitivity, 8579.6ms TimeCoverageRelationStatistics Valid=10566, Invalid=19536, Unknown=0, NotChecked=0, Total=30102 [2021-05-02 12:42:44,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-05-02 12:42:44,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 176. [2021-05-02 12:42:44,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 171 states have (on average 1.0058479532163742) internal successors, (172), 171 states have internal predecessors, (172), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:44,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2021-05-02 12:42:44,846 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 173 [2021-05-02 12:42:44,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:42:44,846 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2021-05-02 12:42:44,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 90 states, 90 states have (on average 1.9444444444444444) internal successors, (175), 87 states have internal predecessors, (175), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:44,846 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2021-05-02 12:42:44,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-05-02 12:42:44,847 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:42:44,847 INFO L523 BasicCegarLoop]: trace histogram [82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:42:45,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:42:45,059 INFO L428 AbstractCegarLoop]: === Iteration 83 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:42:45,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:42:45,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1866376396, now seen corresponding path program 82 times [2021-05-02 12:42:45,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:42:45,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477262049] [2021-05-02 12:42:45,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:42:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:48,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:42:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:48,410 INFO L134 CoverageAnalysis]: Checked inductivity of 6724 backedges. 0 proven. 6724 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:48,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:42:48,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477262049] [2021-05-02 12:42:48,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477262049] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:48,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573163000] [2021-05-02 12:42:48,411 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:42:48,550 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:42:48,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:42:48,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 86 conjunts are in the unsatisfiable core [2021-05-02 12:42:48,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:42:48,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:48,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:49,006 INFO L134 CoverageAnalysis]: Checked inductivity of 6724 backedges. 0 proven. 6724 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:49,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573163000] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:49,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:42:49,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 87] total 91 [2021-05-02 12:42:49,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432870493] [2021-05-02 12:42:49,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 91 states [2021-05-02 12:42:49,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:42:49,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2021-05-02 12:42:49,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3667, Invalid=4523, Unknown=0, NotChecked=0, Total=8190 [2021-05-02 12:42:49,008 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand has 91 states, 91 states have (on average 1.945054945054945) internal successors, (177), 88 states have internal predecessors, (177), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:54,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:42:54,734 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2021-05-02 12:42:54,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-05-02 12:42:54,735 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 91 states have (on average 1.945054945054945) internal successors, (177), 88 states have internal predecessors, (177), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2021-05-02 12:42:54,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:42:54,736 INFO L225 Difference]: With dead ends: 184 [2021-05-02 12:42:54,736 INFO L226 Difference]: Without dead ends: 179 [2021-05-02 12:42:54,738 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4396 ImplicationChecksByTransitivity, 8537.0ms TimeCoverageRelationStatistics Valid=10819, Invalid=19981, Unknown=0, NotChecked=0, Total=30800 [2021-05-02 12:42:54,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-05-02 12:42:54,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 178. [2021-05-02 12:42:54,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.0057803468208093) internal successors, (174), 173 states have internal predecessors, (174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:54,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 178 transitions. [2021-05-02 12:42:54,744 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 178 transitions. Word has length 175 [2021-05-02 12:42:54,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:42:54,744 INFO L480 AbstractCegarLoop]: Abstraction has 178 states and 178 transitions. [2021-05-02 12:42:54,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 91 states, 91 states have (on average 1.945054945054945) internal successors, (177), 88 states have internal predecessors, (177), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:42:54,744 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 178 transitions. [2021-05-02 12:42:54,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-05-02 12:42:54,745 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:42:54,745 INFO L523 BasicCegarLoop]: trace histogram [83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:42:54,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,83 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:42:54,947 INFO L428 AbstractCegarLoop]: === Iteration 84 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:42:54,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:42:54,948 INFO L82 PathProgramCache]: Analyzing trace with hash -608464760, now seen corresponding path program 83 times [2021-05-02 12:42:54,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:42:54,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203732434] [2021-05-02 12:42:54,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:42:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:59,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:42:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:59,594 INFO L134 CoverageAnalysis]: Checked inductivity of 6889 backedges. 0 proven. 6889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:42:59,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:42:59,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203732434] [2021-05-02 12:42:59,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203732434] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:59,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949727167] [2021-05-02 12:42:59,596 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:42:59,942 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 84 check-sat command(s) [2021-05-02 12:42:59,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:42:59,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 90 conjunts are in the unsatisfiable core [2021-05-02 12:42:59,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:42:59,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:59,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:59,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:59,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:00,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6889 backedges. 0 proven. 6889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:43:00,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949727167] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:43:00,685 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:43:00,685 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 88] total 92 [2021-05-02 12:43:00,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257058737] [2021-05-02 12:43:00,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 92 states [2021-05-02 12:43:00,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:43:00,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-05-02 12:43:00,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3753, Invalid=4619, Unknown=0, NotChecked=0, Total=8372 [2021-05-02 12:43:00,687 INFO L87 Difference]: Start difference. First operand 178 states and 178 transitions. Second operand has 92 states, 92 states have (on average 1.9456521739130435) internal successors, (179), 89 states have internal predecessors, (179), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:08,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:43:08,401 INFO L93 Difference]: Finished difference Result 186 states and 186 transitions. [2021-05-02 12:43:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-05-02 12:43:08,402 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 1.9456521739130435) internal successors, (179), 89 states have internal predecessors, (179), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 177 [2021-05-02 12:43:08,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:43:08,403 INFO L225 Difference]: With dead ends: 186 [2021-05-02 12:43:08,403 INFO L226 Difference]: Without dead ends: 181 [2021-05-02 12:43:08,405 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4491 ImplicationChecksByTransitivity, 11620.5ms TimeCoverageRelationStatistics Valid=11075, Invalid=20431, Unknown=0, NotChecked=0, Total=31506 [2021-05-02 12:43:08,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-05-02 12:43:08,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 180. [2021-05-02 12:43:08,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.0057142857142858) internal successors, (176), 175 states have internal predecessors, (176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:08,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 180 transitions. [2021-05-02 12:43:08,413 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 180 transitions. Word has length 177 [2021-05-02 12:43:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:43:08,413 INFO L480 AbstractCegarLoop]: Abstraction has 180 states and 180 transitions. [2021-05-02 12:43:08,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 92 states, 92 states have (on average 1.9456521739130435) internal successors, (179), 89 states have internal predecessors, (179), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:08,414 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 180 transitions. [2021-05-02 12:43:08,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-05-02 12:43:08,414 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:43:08,415 INFO L523 BasicCegarLoop]: trace histogram [84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:43:08,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:43:08,641 INFO L428 AbstractCegarLoop]: === Iteration 85 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:43:08,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:43:08,642 INFO L82 PathProgramCache]: Analyzing trace with hash 481066308, now seen corresponding path program 84 times [2021-05-02 12:43:08,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:43:08,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003721121] [2021-05-02 12:43:08,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:43:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:12,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:43:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 7056 backedges. 0 proven. 7056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:43:12,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:43:12,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003721121] [2021-05-02 12:43:12,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003721121] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:43:12,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160617086] [2021-05-02 12:43:12,204 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:43:12,438 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 85 check-sat command(s) [2021-05-02 12:43:12,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:43:12,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 91 conjunts are in the unsatisfiable core [2021-05-02 12:43:12,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:43:12,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:12,900 INFO L134 CoverageAnalysis]: Checked inductivity of 7056 backedges. 0 proven. 7056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:43:12,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160617086] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:43:12,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:43:12,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 89] total 93 [2021-05-02 12:43:12,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136382737] [2021-05-02 12:43:12,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 93 states [2021-05-02 12:43:12,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:43:12,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-05-02 12:43:12,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3840, Invalid=4716, Unknown=0, NotChecked=0, Total=8556 [2021-05-02 12:43:12,903 INFO L87 Difference]: Start difference. First operand 180 states and 180 transitions. Second operand has 93 states, 93 states have (on average 1.946236559139785) internal successors, (181), 90 states have internal predecessors, (181), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:20,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:43:20,396 INFO L93 Difference]: Finished difference Result 188 states and 188 transitions. [2021-05-02 12:43:20,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-05-02 12:43:20,398 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 93 states have (on average 1.946236559139785) internal successors, (181), 90 states have internal predecessors, (181), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2021-05-02 12:43:20,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:43:20,399 INFO L225 Difference]: With dead ends: 188 [2021-05-02 12:43:20,399 INFO L226 Difference]: Without dead ends: 183 [2021-05-02 12:43:20,401 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4587 ImplicationChecksByTransitivity, 10206.9ms TimeCoverageRelationStatistics Valid=11334, Invalid=20886, Unknown=0, NotChecked=0, Total=32220 [2021-05-02 12:43:20,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-05-02 12:43:20,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 182. [2021-05-02 12:43:20,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.0056497175141244) internal successors, (178), 177 states have internal predecessors, (178), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:20,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 182 transitions. [2021-05-02 12:43:20,430 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 182 transitions. Word has length 179 [2021-05-02 12:43:20,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:43:20,430 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 182 transitions. [2021-05-02 12:43:20,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 93 states, 93 states have (on average 1.946236559139785) internal successors, (181), 90 states have internal predecessors, (181), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:20,432 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 182 transitions. [2021-05-02 12:43:20,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-05-02 12:43:20,434 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:43:20,434 INFO L523 BasicCegarLoop]: trace histogram [85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:43:20,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2021-05-02 12:43:20,635 INFO L428 AbstractCegarLoop]: === Iteration 86 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:43:20,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:43:20,635 INFO L82 PathProgramCache]: Analyzing trace with hash -451597568, now seen corresponding path program 85 times [2021-05-02 12:43:20,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:43:20,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195277113] [2021-05-02 12:43:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:43:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:25,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:43:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:25,340 INFO L134 CoverageAnalysis]: Checked inductivity of 7225 backedges. 0 proven. 7225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:43:25,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:43:25,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195277113] [2021-05-02 12:43:25,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195277113] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:43:25,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915624995] [2021-05-02 12:43:25,341 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:43:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:25,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 92 conjunts are in the unsatisfiable core [2021-05-02 12:43:25,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:43:25,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:26,017 INFO L134 CoverageAnalysis]: Checked inductivity of 7225 backedges. 0 proven. 7225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:43:26,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915624995] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:43:26,019 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:43:26,019 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 90] total 94 [2021-05-02 12:43:26,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132759262] [2021-05-02 12:43:26,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 94 states [2021-05-02 12:43:26,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:43:26,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-05-02 12:43:26,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3928, Invalid=4814, Unknown=0, NotChecked=0, Total=8742 [2021-05-02 12:43:26,022 INFO L87 Difference]: Start difference. First operand 182 states and 182 transitions. Second operand has 94 states, 94 states have (on average 1.946808510638298) internal successors, (183), 91 states have internal predecessors, (183), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:32,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:43:32,305 INFO L93 Difference]: Finished difference Result 190 states and 190 transitions. [2021-05-02 12:43:32,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-05-02 12:43:32,305 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 94 states have (on average 1.946808510638298) internal successors, (183), 91 states have internal predecessors, (183), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 181 [2021-05-02 12:43:32,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:43:32,306 INFO L225 Difference]: With dead ends: 190 [2021-05-02 12:43:32,306 INFO L226 Difference]: Without dead ends: 185 [2021-05-02 12:43:32,308 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4684 ImplicationChecksByTransitivity, 10251.1ms TimeCoverageRelationStatistics Valid=11596, Invalid=21346, Unknown=0, NotChecked=0, Total=32942 [2021-05-02 12:43:32,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-05-02 12:43:32,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 184. [2021-05-02 12:43:32,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 179 states have (on average 1.005586592178771) internal successors, (180), 179 states have internal predecessors, (180), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 184 transitions. [2021-05-02 12:43:32,315 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 184 transitions. Word has length 181 [2021-05-02 12:43:32,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:43:32,315 INFO L480 AbstractCegarLoop]: Abstraction has 184 states and 184 transitions. [2021-05-02 12:43:32,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 94 states, 94 states have (on average 1.946808510638298) internal successors, (183), 91 states have internal predecessors, (183), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:32,315 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 184 transitions. [2021-05-02 12:43:32,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-05-02 12:43:32,316 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:43:32,316 INFO L523 BasicCegarLoop]: trace histogram [86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:43:32,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:43:32,517 INFO L428 AbstractCegarLoop]: === Iteration 87 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:43:32,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:43:32,517 INFO L82 PathProgramCache]: Analyzing trace with hash 906582460, now seen corresponding path program 86 times [2021-05-02 12:43:32,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:43:32,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183527496] [2021-05-02 12:43:32,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:43:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:36,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:43:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:36,093 INFO L134 CoverageAnalysis]: Checked inductivity of 7396 backedges. 0 proven. 7396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:43:36,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:43:36,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183527496] [2021-05-02 12:43:36,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183527496] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:43:36,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544283753] [2021-05-02 12:43:36,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:43:36,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:43:36,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:43:36,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 93 conjunts are in the unsatisfiable core [2021-05-02 12:43:36,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:43:36,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 7396 backedges. 0 proven. 7396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:43:36,756 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544283753] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:43:36,756 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:43:36,756 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 91] total 95 [2021-05-02 12:43:36,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201567645] [2021-05-02 12:43:36,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 95 states [2021-05-02 12:43:36,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:43:36,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2021-05-02 12:43:36,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4017, Invalid=4913, Unknown=0, NotChecked=0, Total=8930 [2021-05-02 12:43:36,758 INFO L87 Difference]: Start difference. First operand 184 states and 184 transitions. Second operand has 95 states, 95 states have (on average 1.9473684210526316) internal successors, (185), 92 states have internal predecessors, (185), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:43,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:43:43,934 INFO L93 Difference]: Finished difference Result 192 states and 192 transitions. [2021-05-02 12:43:43,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-05-02 12:43:43,935 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 1.9473684210526316) internal successors, (185), 92 states have internal predecessors, (185), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 183 [2021-05-02 12:43:43,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:43:43,936 INFO L225 Difference]: With dead ends: 192 [2021-05-02 12:43:43,936 INFO L226 Difference]: Without dead ends: 187 [2021-05-02 12:43:43,938 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4782 ImplicationChecksByTransitivity, 10213.1ms TimeCoverageRelationStatistics Valid=11861, Invalid=21811, Unknown=0, NotChecked=0, Total=33672 [2021-05-02 12:43:43,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-05-02 12:43:43,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2021-05-02 12:43:43,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.0055248618784531) internal successors, (182), 181 states have internal predecessors, (182), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:43,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2021-05-02 12:43:43,968 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 183 [2021-05-02 12:43:43,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:43:43,968 INFO L480 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2021-05-02 12:43:43,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 95 states, 95 states have (on average 1.9473684210526316) internal successors, (185), 92 states have internal predecessors, (185), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:43,968 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2021-05-02 12:43:43,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-05-02 12:43:43,969 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:43:43,969 INFO L523 BasicCegarLoop]: trace histogram [87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:43:44,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2021-05-02 12:43:44,171 INFO L428 AbstractCegarLoop]: === Iteration 88 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:43:44,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:43:44,171 INFO L82 PathProgramCache]: Analyzing trace with hash 447531384, now seen corresponding path program 87 times [2021-05-02 12:43:44,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:43:44,171 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809009774] [2021-05-02 12:43:44,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:43:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:48,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:43:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:48,457 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 0 proven. 7569 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:43:48,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:43:48,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809009774] [2021-05-02 12:43:48,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809009774] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:43:48,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263870261] [2021-05-02 12:43:48,458 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:43:48,883 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 88 check-sat command(s) [2021-05-02 12:43:48,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:43:48,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 94 conjunts are in the unsatisfiable core [2021-05-02 12:43:48,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:43:48,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 0 proven. 7569 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:43:49,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263870261] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:43:49,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:43:49,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 92] total 96 [2021-05-02 12:43:49,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348809532] [2021-05-02 12:43:49,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 96 states [2021-05-02 12:43:49,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:43:49,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-05-02 12:43:49,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4107, Invalid=5013, Unknown=0, NotChecked=0, Total=9120 [2021-05-02 12:43:49,657 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand has 96 states, 96 states have (on average 1.9479166666666667) internal successors, (187), 93 states have internal predecessors, (187), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:59,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:43:59,173 INFO L93 Difference]: Finished difference Result 194 states and 194 transitions. [2021-05-02 12:43:59,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-05-02 12:43:59,173 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 1.9479166666666667) internal successors, (187), 93 states have internal predecessors, (187), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 185 [2021-05-02 12:43:59,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:43:59,174 INFO L225 Difference]: With dead ends: 194 [2021-05-02 12:43:59,174 INFO L226 Difference]: Without dead ends: 189 [2021-05-02 12:43:59,176 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4881 ImplicationChecksByTransitivity, 13140.3ms TimeCoverageRelationStatistics Valid=12129, Invalid=22281, Unknown=0, NotChecked=0, Total=34410 [2021-05-02 12:43:59,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-05-02 12:43:59,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2021-05-02 12:43:59,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.005464480874317) internal successors, (184), 183 states have internal predecessors, (184), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:59,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 188 transitions. [2021-05-02 12:43:59,211 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 188 transitions. Word has length 185 [2021-05-02 12:43:59,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:43:59,211 INFO L480 AbstractCegarLoop]: Abstraction has 188 states and 188 transitions. [2021-05-02 12:43:59,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 96 states, 96 states have (on average 1.9479166666666667) internal successors, (187), 93 states have internal predecessors, (187), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:43:59,211 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 188 transitions. [2021-05-02 12:43:59,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-05-02 12:43:59,212 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:43:59,212 INFO L523 BasicCegarLoop]: trace histogram [88, 88, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:43:59,432 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-05-02 12:43:59,433 INFO L428 AbstractCegarLoop]: === Iteration 89 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:43:59,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:43:59,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1681078836, now seen corresponding path program 88 times [2021-05-02 12:43:59,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:43:59,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140759889] [2021-05-02 12:43:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:43:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:44:03,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:44:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:44:03,404 INFO L134 CoverageAnalysis]: Checked inductivity of 7744 backedges. 0 proven. 7744 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:44:03,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:44:03,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140759889] [2021-05-02 12:44:03,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140759889] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:44:03,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542296326] [2021-05-02 12:44:03,404 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:44:03,554 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:44:03,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:44:03,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 92 conjunts are in the unsatisfiable core [2021-05-02 12:44:03,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:44:03,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:03,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:04,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:04,061 INFO L134 CoverageAnalysis]: Checked inductivity of 7744 backedges. 0 proven. 7744 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:44:04,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542296326] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:44:04,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:44:04,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 93] total 97 [2021-05-02 12:44:04,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934886505] [2021-05-02 12:44:04,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 97 states [2021-05-02 12:44:04,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:44:04,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-05-02 12:44:04,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4198, Invalid=5114, Unknown=0, NotChecked=0, Total=9312 [2021-05-02 12:44:04,064 INFO L87 Difference]: Start difference. First operand 188 states and 188 transitions. Second operand has 97 states, 97 states have (on average 1.9484536082474226) internal successors, (189), 94 states have internal predecessors, (189), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:44:14,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:44:14,935 INFO L93 Difference]: Finished difference Result 196 states and 196 transitions. [2021-05-02 12:44:14,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-05-02 12:44:14,936 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 1.9484536082474226) internal successors, (189), 94 states have internal predecessors, (189), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 187 [2021-05-02 12:44:14,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:44:14,937 INFO L225 Difference]: With dead ends: 196 [2021-05-02 12:44:14,937 INFO L226 Difference]: Without dead ends: 191 [2021-05-02 12:44:14,939 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4981 ImplicationChecksByTransitivity, 13978.9ms TimeCoverageRelationStatistics Valid=12400, Invalid=22756, Unknown=0, NotChecked=0, Total=35156 [2021-05-02 12:44:14,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-05-02 12:44:14,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 190. [2021-05-02 12:44:14,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.0054054054054054) internal successors, (186), 185 states have internal predecessors, (186), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:44:14,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 190 transitions. [2021-05-02 12:44:14,948 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 190 transitions. Word has length 187 [2021-05-02 12:44:14,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:44:14,948 INFO L480 AbstractCegarLoop]: Abstraction has 190 states and 190 transitions. [2021-05-02 12:44:14,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 97 states, 97 states have (on average 1.9484536082474226) internal successors, (189), 94 states have internal predecessors, (189), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:44:14,948 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 190 transitions. [2021-05-02 12:44:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-05-02 12:44:14,949 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:44:14,949 INFO L523 BasicCegarLoop]: trace histogram [89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:44:15,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:44:15,165 INFO L428 AbstractCegarLoop]: === Iteration 90 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:44:15,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:44:15,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1709206512, now seen corresponding path program 89 times [2021-05-02 12:44:15,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:44:15,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960625158] [2021-05-02 12:44:15,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:44:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:44:19,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:44:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:44:19,255 INFO L134 CoverageAnalysis]: Checked inductivity of 7921 backedges. 0 proven. 7921 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:44:19,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:44:19,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960625158] [2021-05-02 12:44:19,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960625158] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:44:19,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663356215] [2021-05-02 12:44:19,255 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:44:19,483 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 90 check-sat command(s) [2021-05-02 12:44:19,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:44:19,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 96 conjunts are in the unsatisfiable core [2021-05-02 12:44:19,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:44:19,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:19,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:20,041 INFO L134 CoverageAnalysis]: Checked inductivity of 7921 backedges. 0 proven. 7921 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:44:20,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663356215] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:44:20,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:44:20,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 94] total 98 [2021-05-02 12:44:20,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460506818] [2021-05-02 12:44:20,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 98 states [2021-05-02 12:44:20,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:44:20,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-05-02 12:44:20,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=5216, Unknown=0, NotChecked=0, Total=9506 [2021-05-02 12:44:20,043 INFO L87 Difference]: Start difference. First operand 190 states and 190 transitions. Second operand has 98 states, 98 states have (on average 1.9489795918367347) internal successors, (191), 95 states have internal predecessors, (191), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:44:26,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:44:26,565 INFO L93 Difference]: Finished difference Result 198 states and 198 transitions. [2021-05-02 12:44:26,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-05-02 12:44:26,566 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 1.9489795918367347) internal successors, (191), 95 states have internal predecessors, (191), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 189 [2021-05-02 12:44:26,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:44:26,567 INFO L225 Difference]: With dead ends: 198 [2021-05-02 12:44:26,568 INFO L226 Difference]: Without dead ends: 193 [2021-05-02 12:44:26,569 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5082 ImplicationChecksByTransitivity, 10113.1ms TimeCoverageRelationStatistics Valid=12674, Invalid=23236, Unknown=0, NotChecked=0, Total=35910 [2021-05-02 12:44:26,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-05-02 12:44:26,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 192. [2021-05-02 12:44:26,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 187 states have (on average 1.0053475935828877) internal successors, (188), 187 states have internal predecessors, (188), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:44:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 192 transitions. [2021-05-02 12:44:26,576 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 192 transitions. Word has length 189 [2021-05-02 12:44:26,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:44:26,576 INFO L480 AbstractCegarLoop]: Abstraction has 192 states and 192 transitions. [2021-05-02 12:44:26,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 98 states, 98 states have (on average 1.9489795918367347) internal successors, (191), 95 states have internal predecessors, (191), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:44:26,577 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 192 transitions. [2021-05-02 12:44:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-05-02 12:44:26,577 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:44:26,577 INFO L523 BasicCegarLoop]: trace histogram [90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:44:26,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:44:26,781 INFO L428 AbstractCegarLoop]: === Iteration 91 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:44:26,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:44:26,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1324867924, now seen corresponding path program 90 times [2021-05-02 12:44:26,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:44:26,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139861569] [2021-05-02 12:44:26,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:44:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:44:32,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:44:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:44:32,928 INFO L134 CoverageAnalysis]: Checked inductivity of 8100 backedges. 0 proven. 8100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:44:32,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:44:32,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139861569] [2021-05-02 12:44:32,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139861569] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:44:32,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756655128] [2021-05-02 12:44:32,929 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:44:33,366 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 91 check-sat command(s) [2021-05-02 12:44:33,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:44:33,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 97 conjunts are in the unsatisfiable core [2021-05-02 12:44:33,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:44:33,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:33,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:34,168 INFO L134 CoverageAnalysis]: Checked inductivity of 8100 backedges. 0 proven. 8100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:44:34,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756655128] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:44:34,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:44:34,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 95] total 99 [2021-05-02 12:44:34,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308072276] [2021-05-02 12:44:34,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 99 states [2021-05-02 12:44:34,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:44:34,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2021-05-02 12:44:34,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4383, Invalid=5319, Unknown=0, NotChecked=0, Total=9702 [2021-05-02 12:44:34,170 INFO L87 Difference]: Start difference. First operand 192 states and 192 transitions. Second operand has 99 states, 99 states have (on average 1.9494949494949494) internal successors, (193), 96 states have internal predecessors, (193), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:44:43,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:44:43,128 INFO L93 Difference]: Finished difference Result 200 states and 200 transitions. [2021-05-02 12:44:43,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-05-02 12:44:43,129 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 1.9494949494949494) internal successors, (193), 96 states have internal predecessors, (193), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 191 [2021-05-02 12:44:43,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:44:43,129 INFO L225 Difference]: With dead ends: 200 [2021-05-02 12:44:43,129 INFO L226 Difference]: Without dead ends: 195 [2021-05-02 12:44:43,131 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5184 ImplicationChecksByTransitivity, 14408.3ms TimeCoverageRelationStatistics Valid=12951, Invalid=23721, Unknown=0, NotChecked=0, Total=36672 [2021-05-02 12:44:43,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-05-02 12:44:43,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2021-05-02 12:44:43,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.0052910052910053) internal successors, (190), 189 states have internal predecessors, (190), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:44:43,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 194 transitions. [2021-05-02 12:44:43,138 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 194 transitions. Word has length 191 [2021-05-02 12:44:43,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:44:43,138 INFO L480 AbstractCegarLoop]: Abstraction has 194 states and 194 transitions. [2021-05-02 12:44:43,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 99 states, 99 states have (on average 1.9494949494949494) internal successors, (193), 96 states have internal predecessors, (193), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:44:43,138 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 194 transitions. [2021-05-02 12:44:43,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-05-02 12:44:43,139 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:44:43,139 INFO L523 BasicCegarLoop]: trace histogram [91, 91, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:44:43,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,91 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:44:43,357 INFO L428 AbstractCegarLoop]: === Iteration 92 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:44:43,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:44:43,357 INFO L82 PathProgramCache]: Analyzing trace with hash -787606936, now seen corresponding path program 91 times [2021-05-02 12:44:43,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:44:43,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382732051] [2021-05-02 12:44:43,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:44:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:44:48,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:44:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:44:48,077 INFO L134 CoverageAnalysis]: Checked inductivity of 8281 backedges. 0 proven. 8281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:44:48,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:44:48,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382732051] [2021-05-02 12:44:48,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382732051] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:44:48,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271192470] [2021-05-02 12:44:48,077 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:44:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:44:48,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 98 conjunts are in the unsatisfiable core [2021-05-02 12:44:48,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:44:48,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:44:48,840 INFO L134 CoverageAnalysis]: Checked inductivity of 8281 backedges. 0 proven. 8281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:44:48,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271192470] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:44:48,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:44:48,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 96] total 100 [2021-05-02 12:44:48,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995513088] [2021-05-02 12:44:48,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 100 states [2021-05-02 12:44:48,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:44:48,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2021-05-02 12:44:48,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4477, Invalid=5423, Unknown=0, NotChecked=0, Total=9900 [2021-05-02 12:44:48,856 INFO L87 Difference]: Start difference. First operand 194 states and 194 transitions. Second operand has 100 states, 100 states have (on average 1.95) internal successors, (195), 97 states have internal predecessors, (195), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:44:55,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:44:55,904 INFO L93 Difference]: Finished difference Result 202 states and 202 transitions. [2021-05-02 12:44:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-05-02 12:44:55,905 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 1.95) internal successors, (195), 97 states have internal predecessors, (195), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 193 [2021-05-02 12:44:55,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:44:55,906 INFO L225 Difference]: With dead ends: 202 [2021-05-02 12:44:55,906 INFO L226 Difference]: Without dead ends: 197 [2021-05-02 12:44:55,908 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5287 ImplicationChecksByTransitivity, 11190.9ms TimeCoverageRelationStatistics Valid=13231, Invalid=24211, Unknown=0, NotChecked=0, Total=37442 [2021-05-02 12:44:55,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-05-02 12:44:55,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2021-05-02 12:44:55,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.0052356020942408) internal successors, (192), 191 states have internal predecessors, (192), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:44:55,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 196 transitions. [2021-05-02 12:44:55,915 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 196 transitions. Word has length 193 [2021-05-02 12:44:55,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:44:55,915 INFO L480 AbstractCegarLoop]: Abstraction has 196 states and 196 transitions. [2021-05-02 12:44:55,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 100 states, 100 states have (on average 1.95) internal successors, (195), 97 states have internal predecessors, (195), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:44:55,915 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 196 transitions. [2021-05-02 12:44:55,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-05-02 12:44:55,916 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:44:55,916 INFO L523 BasicCegarLoop]: trace histogram [92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:44:56,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,92 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:44:56,136 INFO L428 AbstractCegarLoop]: === Iteration 93 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:44:56,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:44:56,136 INFO L82 PathProgramCache]: Analyzing trace with hash 124127012, now seen corresponding path program 92 times [2021-05-02 12:44:56,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:44:56,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978315515] [2021-05-02 12:44:56,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:44:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:45:00,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:45:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:45:00,154 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:45:00,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:45:00,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978315515] [2021-05-02 12:45:00,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978315515] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:45:00,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490763496] [2021-05-02 12:45:00,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:45:00,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:45:00,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:45:00,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 101 conjunts are in the unsatisfiable core [2021-05-02 12:45:00,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:45:00,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:00,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:01,029 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:45:01,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490763496] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:45:01,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:45:01,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 102 [2021-05-02 12:45:01,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397532891] [2021-05-02 12:45:01,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 102 states [2021-05-02 12:45:01,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:45:01,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2021-05-02 12:45:01,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4574, Invalid=5728, Unknown=0, NotChecked=0, Total=10302 [2021-05-02 12:45:01,032 INFO L87 Difference]: Start difference. First operand 196 states and 196 transitions. Second operand has 102 states, 102 states have (on average 1.9411764705882353) internal successors, (198), 99 states have internal predecessors, (198), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 12:45:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:45:10,598 INFO L93 Difference]: Finished difference Result 204 states and 204 transitions. [2021-05-02 12:45:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-05-02 12:45:10,599 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 1.9411764705882353) internal successors, (198), 99 states have internal predecessors, (198), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 195 [2021-05-02 12:45:10,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:45:10,600 INFO L225 Difference]: With dead ends: 204 [2021-05-02 12:45:10,600 INFO L226 Difference]: Without dead ends: 199 [2021-05-02 12:45:10,603 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5486 ImplicationChecksByTransitivity, 12951.0ms TimeCoverageRelationStatistics Valid=13710, Invalid=25296, Unknown=0, NotChecked=0, Total=39006 [2021-05-02 12:45:10,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-05-02 12:45:10,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 198. [2021-05-02 12:45:10,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.005181347150259) internal successors, (194), 193 states have internal predecessors, (194), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:45:10,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 198 transitions. [2021-05-02 12:45:10,620 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 198 transitions. Word has length 195 [2021-05-02 12:45:10,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:45:10,620 INFO L480 AbstractCegarLoop]: Abstraction has 198 states and 198 transitions. [2021-05-02 12:45:10,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 102 states, 102 states have (on average 1.9411764705882353) internal successors, (198), 99 states have internal predecessors, (198), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 12:45:10,620 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 198 transitions. [2021-05-02 12:45:10,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-05-02 12:45:10,621 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:45:10,621 INFO L523 BasicCegarLoop]: trace histogram [93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:45:10,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,93 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:45:10,829 INFO L428 AbstractCegarLoop]: === Iteration 94 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:45:10,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:45:10,829 INFO L82 PathProgramCache]: Analyzing trace with hash 127122656, now seen corresponding path program 93 times [2021-05-02 12:45:10,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:45:10,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825537953] [2021-05-02 12:45:10,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:45:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:45:16,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:45:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:45:16,783 INFO L134 CoverageAnalysis]: Checked inductivity of 8649 backedges. 0 proven. 8649 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:45:16,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:45:16,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825537953] [2021-05-02 12:45:16,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825537953] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:45:16,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589687608] [2021-05-02 12:45:16,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:45:17,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 94 check-sat command(s) [2021-05-02 12:45:17,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:45:17,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 100 conjunts are in the unsatisfiable core [2021-05-02 12:45:17,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:45:17,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:17,804 INFO L134 CoverageAnalysis]: Checked inductivity of 8649 backedges. 0 proven. 8649 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:45:17,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589687608] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:45:17,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:45:17,805 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 98] total 102 [2021-05-02 12:45:17,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894880554] [2021-05-02 12:45:17,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 102 states [2021-05-02 12:45:17,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:45:17,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2021-05-02 12:45:17,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4668, Invalid=5634, Unknown=0, NotChecked=0, Total=10302 [2021-05-02 12:45:17,808 INFO L87 Difference]: Start difference. First operand 198 states and 198 transitions. Second operand has 102 states, 102 states have (on average 1.9509803921568627) internal successors, (199), 99 states have internal predecessors, (199), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:45:25,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:45:25,748 INFO L93 Difference]: Finished difference Result 206 states and 206 transitions. [2021-05-02 12:45:25,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-05-02 12:45:25,748 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 1.9509803921568627) internal successors, (199), 99 states have internal predecessors, (199), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2021-05-02 12:45:25,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:45:25,749 INFO L225 Difference]: With dead ends: 206 [2021-05-02 12:45:25,749 INFO L226 Difference]: Without dead ends: 201 [2021-05-02 12:45:25,783 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5496 ImplicationChecksByTransitivity, 13238.1ms TimeCoverageRelationStatistics Valid=13800, Invalid=25206, Unknown=0, NotChecked=0, Total=39006 [2021-05-02 12:45:25,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-05-02 12:45:25,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 200. [2021-05-02 12:45:25,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 195 states have (on average 1.005128205128205) internal successors, (196), 195 states have internal predecessors, (196), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:45:25,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 200 transitions. [2021-05-02 12:45:25,790 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 200 transitions. Word has length 197 [2021-05-02 12:45:25,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:45:25,791 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 200 transitions. [2021-05-02 12:45:25,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 102 states, 102 states have (on average 1.9509803921568627) internal successors, (199), 99 states have internal predecessors, (199), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:45:25,791 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 200 transitions. [2021-05-02 12:45:25,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-05-02 12:45:25,791 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:45:25,792 INFO L523 BasicCegarLoop]: trace histogram [94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:45:26,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,94 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:45:26,005 INFO L428 AbstractCegarLoop]: === Iteration 95 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:45:26,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:45:26,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1289030756, now seen corresponding path program 94 times [2021-05-02 12:45:26,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:45:26,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722043560] [2021-05-02 12:45:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:45:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:45:31,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:45:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:45:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:45:31,198 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:45:31,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722043560] [2021-05-02 12:45:31,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722043560] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:45:31,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510439753] [2021-05-02 12:45:31,198 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:45:31,367 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:45:31,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:45:31,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 98 conjunts are in the unsatisfiable core [2021-05-02 12:45:31,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:45:31,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:45:31,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510439753] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:45:31,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:45:31,995 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 99] total 103 [2021-05-02 12:45:31,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345936122] [2021-05-02 12:45:31,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 103 states [2021-05-02 12:45:31,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:45:31,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2021-05-02 12:45:31,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4765, Invalid=5741, Unknown=0, NotChecked=0, Total=10506 [2021-05-02 12:45:31,997 INFO L87 Difference]: Start difference. First operand 200 states and 200 transitions. Second operand has 103 states, 103 states have (on average 1.9514563106796117) internal successors, (201), 100 states have internal predecessors, (201), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:45:39,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:45:39,823 INFO L93 Difference]: Finished difference Result 208 states and 208 transitions. [2021-05-02 12:45:39,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-05-02 12:45:39,825 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 1.9514563106796117) internal successors, (201), 100 states have internal predecessors, (201), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 199 [2021-05-02 12:45:39,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:45:39,826 INFO L225 Difference]: With dead ends: 208 [2021-05-02 12:45:39,826 INFO L226 Difference]: Without dead ends: 203 [2021-05-02 12:45:39,828 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5602 ImplicationChecksByTransitivity, 12354.1ms TimeCoverageRelationStatistics Valid=14089, Invalid=25711, Unknown=0, NotChecked=0, Total=39800 [2021-05-02 12:45:39,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-05-02 12:45:39,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 202. [2021-05-02 12:45:39,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.0050761421319796) internal successors, (198), 197 states have internal predecessors, (198), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:45:39,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 202 transitions. [2021-05-02 12:45:39,836 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 202 transitions. Word has length 199 [2021-05-02 12:45:39,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:45:39,836 INFO L480 AbstractCegarLoop]: Abstraction has 202 states and 202 transitions. [2021-05-02 12:45:39,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 103 states, 103 states have (on average 1.9514563106796117) internal successors, (201), 100 states have internal predecessors, (201), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:45:39,837 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 202 transitions. [2021-05-02 12:45:39,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-05-02 12:45:39,838 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:45:39,838 INFO L523 BasicCegarLoop]: trace histogram [95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:45:40,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:45:40,061 INFO L428 AbstractCegarLoop]: === Iteration 96 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:45:40,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:45:40,061 INFO L82 PathProgramCache]: Analyzing trace with hash -707826856, now seen corresponding path program 95 times [2021-05-02 12:45:40,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:45:40,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406894496] [2021-05-02 12:45:40,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:45:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:45:45,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:45:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:45:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 9025 backedges. 0 proven. 9025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:45:45,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:45:45,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406894496] [2021-05-02 12:45:45,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406894496] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:45:45,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340306348] [2021-05-02 12:45:45,043 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:45:45,339 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 96 check-sat command(s) [2021-05-02 12:45:45,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:45:45,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 102 conjunts are in the unsatisfiable core [2021-05-02 12:45:45,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:45:45,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:45,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:45:46,061 INFO L134 CoverageAnalysis]: Checked inductivity of 9025 backedges. 0 proven. 9025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:45:46,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340306348] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:45:46,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:45:46,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 100] total 104 [2021-05-02 12:45:46,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606010940] [2021-05-02 12:45:46,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 104 states [2021-05-02 12:45:46,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:45:46,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2021-05-02 12:45:46,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4863, Invalid=5849, Unknown=0, NotChecked=0, Total=10712 [2021-05-02 12:45:46,065 INFO L87 Difference]: Start difference. First operand 202 states and 202 transitions. Second operand has 104 states, 104 states have (on average 1.9519230769230769) internal successors, (203), 101 states have internal predecessors, (203), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:45:54,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:45:54,254 INFO L93 Difference]: Finished difference Result 210 states and 210 transitions. [2021-05-02 12:45:54,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-05-02 12:45:54,255 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 104 states have (on average 1.9519230769230769) internal successors, (203), 101 states have internal predecessors, (203), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2021-05-02 12:45:54,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:45:54,256 INFO L225 Difference]: With dead ends: 210 [2021-05-02 12:45:54,256 INFO L226 Difference]: Without dead ends: 205 [2021-05-02 12:45:54,259 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5709 ImplicationChecksByTransitivity, 12552.8ms TimeCoverageRelationStatistics Valid=14381, Invalid=26221, Unknown=0, NotChecked=0, Total=40602 [2021-05-02 12:45:54,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-05-02 12:45:54,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2021-05-02 12:45:54,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.0050251256281406) internal successors, (200), 199 states have internal predecessors, (200), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:45:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 204 transitions. [2021-05-02 12:45:54,265 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 204 transitions. Word has length 201 [2021-05-02 12:45:54,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:45:54,266 INFO L480 AbstractCegarLoop]: Abstraction has 204 states and 204 transitions. [2021-05-02 12:45:54,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 104 states, 104 states have (on average 1.9519230769230769) internal successors, (203), 101 states have internal predecessors, (203), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:45:54,266 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 204 transitions. [2021-05-02 12:45:54,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-05-02 12:45:54,266 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:45:54,266 INFO L523 BasicCegarLoop]: trace histogram [96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:45:54,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,96 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:45:54,488 INFO L428 AbstractCegarLoop]: === Iteration 97 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:45:54,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:45:54,488 INFO L82 PathProgramCache]: Analyzing trace with hash -516627436, now seen corresponding path program 96 times [2021-05-02 12:45:54,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:45:54,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675260316] [2021-05-02 12:45:54,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:45:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:45:59,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:45:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:45:59,912 INFO L134 CoverageAnalysis]: Checked inductivity of 9216 backedges. 0 proven. 9216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:45:59,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:45:59,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675260316] [2021-05-02 12:45:59,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675260316] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:45:59,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59035573] [2021-05-02 12:45:59,913 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:46:00,213 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 97 check-sat command(s) [2021-05-02 12:46:00,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:46:00,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 103 conjunts are in the unsatisfiable core [2021-05-02 12:46:00,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:46:00,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:00,907 INFO L134 CoverageAnalysis]: Checked inductivity of 9216 backedges. 0 proven. 9216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:46:00,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59035573] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:46:00,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:46:00,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 101] total 105 [2021-05-02 12:46:00,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863062582] [2021-05-02 12:46:00,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 105 states [2021-05-02 12:46:00,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:46:00,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2021-05-02 12:46:00,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4962, Invalid=5958, Unknown=0, NotChecked=0, Total=10920 [2021-05-02 12:46:00,910 INFO L87 Difference]: Start difference. First operand 204 states and 204 transitions. Second operand has 105 states, 105 states have (on average 1.9523809523809523) internal successors, (205), 102 states have internal predecessors, (205), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:46:08,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:46:08,990 INFO L93 Difference]: Finished difference Result 212 states and 212 transitions. [2021-05-02 12:46:08,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-05-02 12:46:08,990 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 1.9523809523809523) internal successors, (205), 102 states have internal predecessors, (205), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2021-05-02 12:46:08,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:46:08,991 INFO L225 Difference]: With dead ends: 212 [2021-05-02 12:46:08,991 INFO L226 Difference]: Without dead ends: 207 [2021-05-02 12:46:08,994 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5817 ImplicationChecksByTransitivity, 12862.8ms TimeCoverageRelationStatistics Valid=14676, Invalid=26736, Unknown=0, NotChecked=0, Total=41412 [2021-05-02 12:46:08,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-05-02 12:46:09,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 206. [2021-05-02 12:46:09,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.0049751243781095) internal successors, (202), 201 states have internal predecessors, (202), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:46:09,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 206 transitions. [2021-05-02 12:46:09,001 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 206 transitions. Word has length 203 [2021-05-02 12:46:09,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:46:09,001 INFO L480 AbstractCegarLoop]: Abstraction has 206 states and 206 transitions. [2021-05-02 12:46:09,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 105 states, 105 states have (on average 1.9523809523809523) internal successors, (205), 102 states have internal predecessors, (205), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:46:09,001 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 206 transitions. [2021-05-02 12:46:09,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-05-02 12:46:09,002 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:46:09,002 INFO L523 BasicCegarLoop]: trace histogram [97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:46:09,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2021-05-02 12:46:09,221 INFO L428 AbstractCegarLoop]: === Iteration 98 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:46:09,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:46:09,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1457578544, now seen corresponding path program 97 times [2021-05-02 12:46:09,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:46:09,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903435345] [2021-05-02 12:46:09,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:46:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:46:14,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:46:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:46:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 9409 backedges. 0 proven. 9409 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:46:14,338 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:46:14,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903435345] [2021-05-02 12:46:14,339 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903435345] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:46:14,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705122610] [2021-05-02 12:46:14,339 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:46:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:46:14,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 1140 conjuncts, 104 conjunts are in the unsatisfiable core [2021-05-02 12:46:14,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:46:14,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:14,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:15,087 INFO L134 CoverageAnalysis]: Checked inductivity of 9409 backedges. 0 proven. 9409 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:46:15,087 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705122610] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:46:15,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:46:15,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 102] total 106 [2021-05-02 12:46:15,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243695549] [2021-05-02 12:46:15,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 106 states [2021-05-02 12:46:15,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:46:15,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2021-05-02 12:46:15,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5062, Invalid=6068, Unknown=0, NotChecked=0, Total=11130 [2021-05-02 12:46:15,090 INFO L87 Difference]: Start difference. First operand 206 states and 206 transitions. Second operand has 106 states, 106 states have (on average 1.9528301886792452) internal successors, (207), 103 states have internal predecessors, (207), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:46:22,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:46:22,912 INFO L93 Difference]: Finished difference Result 214 states and 214 transitions. [2021-05-02 12:46:22,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-05-02 12:46:22,913 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 106 states have (on average 1.9528301886792452) internal successors, (207), 103 states have internal predecessors, (207), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2021-05-02 12:46:22,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:46:22,915 INFO L225 Difference]: With dead ends: 214 [2021-05-02 12:46:22,915 INFO L226 Difference]: Without dead ends: 209 [2021-05-02 12:46:22,917 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5926 ImplicationChecksByTransitivity, 12354.5ms TimeCoverageRelationStatistics Valid=14974, Invalid=27256, Unknown=0, NotChecked=0, Total=42230 [2021-05-02 12:46:22,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-05-02 12:46:22,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 208. [2021-05-02 12:46:22,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.0049261083743843) internal successors, (204), 203 states have internal predecessors, (204), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:46:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 208 transitions. [2021-05-02 12:46:22,925 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 208 transitions. Word has length 205 [2021-05-02 12:46:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:46:22,925 INFO L480 AbstractCegarLoop]: Abstraction has 208 states and 208 transitions. [2021-05-02 12:46:22,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 106 states, 106 states have (on average 1.9528301886792452) internal successors, (207), 103 states have internal predecessors, (207), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:46:22,925 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 208 transitions. [2021-05-02 12:46:22,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-05-02 12:46:22,945 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:46:22,946 INFO L523 BasicCegarLoop]: trace histogram [98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:46:23,146 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,98 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:46:23,146 INFO L428 AbstractCegarLoop]: === Iteration 99 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:46:23,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:46:23,147 INFO L82 PathProgramCache]: Analyzing trace with hash 526506124, now seen corresponding path program 98 times [2021-05-02 12:46:23,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:46:23,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795714826] [2021-05-02 12:46:23,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:46:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:46:28,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:46:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:46:28,364 INFO L134 CoverageAnalysis]: Checked inductivity of 9604 backedges. 0 proven. 9604 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:46:28,364 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:46:28,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795714826] [2021-05-02 12:46:28,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795714826] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:46:28,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456599811] [2021-05-02 12:46:28,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:46:28,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:46:28,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:46:28,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 105 conjunts are in the unsatisfiable core [2021-05-02 12:46:28,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:46:28,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:28,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:29,259 INFO L134 CoverageAnalysis]: Checked inductivity of 9604 backedges. 0 proven. 9604 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:46:29,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456599811] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:46:29,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:46:29,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 103] total 107 [2021-05-02 12:46:29,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026125909] [2021-05-02 12:46:29,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 107 states [2021-05-02 12:46:29,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:46:29,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2021-05-02 12:46:29,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5163, Invalid=6179, Unknown=0, NotChecked=0, Total=11342 [2021-05-02 12:46:29,261 INFO L87 Difference]: Start difference. First operand 208 states and 208 transitions. Second operand has 107 states, 107 states have (on average 1.9532710280373833) internal successors, (209), 104 states have internal predecessors, (209), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:46:37,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:46:37,904 INFO L93 Difference]: Finished difference Result 216 states and 216 transitions. [2021-05-02 12:46:37,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-05-02 12:46:37,905 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 1.9532710280373833) internal successors, (209), 104 states have internal predecessors, (209), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 207 [2021-05-02 12:46:37,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:46:37,906 INFO L225 Difference]: With dead ends: 216 [2021-05-02 12:46:37,906 INFO L226 Difference]: Without dead ends: 211 [2021-05-02 12:46:37,908 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6036 ImplicationChecksByTransitivity, 13223.2ms TimeCoverageRelationStatistics Valid=15275, Invalid=27781, Unknown=0, NotChecked=0, Total=43056 [2021-05-02 12:46:37,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-05-02 12:46:37,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 210. [2021-05-02 12:46:37,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.0048780487804878) internal successors, (206), 205 states have internal predecessors, (206), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:46:37,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 210 transitions. [2021-05-02 12:46:37,914 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 210 transitions. Word has length 207 [2021-05-02 12:46:37,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:46:37,914 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 210 transitions. [2021-05-02 12:46:37,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 107 states, 107 states have (on average 1.9532710280373833) internal successors, (209), 104 states have internal predecessors, (209), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:46:37,915 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 210 transitions. [2021-05-02 12:46:37,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-05-02 12:46:37,915 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:46:37,915 INFO L523 BasicCegarLoop]: trace histogram [99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:46:38,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:46:38,135 INFO L428 AbstractCegarLoop]: === Iteration 100 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:46:38,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:46:38,135 INFO L82 PathProgramCache]: Analyzing trace with hash 266392648, now seen corresponding path program 99 times [2021-05-02 12:46:38,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:46:38,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559496673] [2021-05-02 12:46:38,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:46:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:46:43,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:46:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:46:43,229 INFO L134 CoverageAnalysis]: Checked inductivity of 9801 backedges. 0 proven. 9801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:46:43,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:46:43,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559496673] [2021-05-02 12:46:43,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559496673] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:46:43,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011267406] [2021-05-02 12:46:43,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:46:43,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 100 check-sat command(s) [2021-05-02 12:46:43,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:46:43,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 106 conjunts are in the unsatisfiable core [2021-05-02 12:46:43,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:46:43,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:43,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 9801 backedges. 0 proven. 9801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:46:44,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011267406] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:46:44,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:46:44,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 104] total 108 [2021-05-02 12:46:44,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420896972] [2021-05-02 12:46:44,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 108 states [2021-05-02 12:46:44,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:46:44,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2021-05-02 12:46:44,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5265, Invalid=6291, Unknown=0, NotChecked=0, Total=11556 [2021-05-02 12:46:44,017 INFO L87 Difference]: Start difference. First operand 210 states and 210 transitions. Second operand has 108 states, 108 states have (on average 1.9537037037037037) internal successors, (211), 105 states have internal predecessors, (211), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:46:51,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:46:51,799 INFO L93 Difference]: Finished difference Result 218 states and 218 transitions. [2021-05-02 12:46:51,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-05-02 12:46:51,800 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 108 states have (on average 1.9537037037037037) internal successors, (211), 105 states have internal predecessors, (211), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 209 [2021-05-02 12:46:51,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:46:51,801 INFO L225 Difference]: With dead ends: 218 [2021-05-02 12:46:51,801 INFO L226 Difference]: Without dead ends: 213 [2021-05-02 12:46:51,804 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6147 ImplicationChecksByTransitivity, 12254.2ms TimeCoverageRelationStatistics Valid=15579, Invalid=28311, Unknown=0, NotChecked=0, Total=43890 [2021-05-02 12:46:51,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-05-02 12:46:51,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 212. [2021-05-02 12:46:51,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.0048309178743962) internal successors, (208), 207 states have internal predecessors, (208), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:46:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 212 transitions. [2021-05-02 12:46:51,811 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 212 transitions. Word has length 209 [2021-05-02 12:46:51,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:46:51,811 INFO L480 AbstractCegarLoop]: Abstraction has 212 states and 212 transitions. [2021-05-02 12:46:51,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 108 states, 108 states have (on average 1.9537037037037037) internal successors, (211), 105 states have internal predecessors, (211), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:46:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 212 transitions. [2021-05-02 12:46:51,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-05-02 12:46:51,812 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:46:51,812 INFO L523 BasicCegarLoop]: trace histogram [100, 100, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:46:52,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2021-05-02 12:46:52,029 INFO L428 AbstractCegarLoop]: === Iteration 101 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:46:52,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:46:52,029 INFO L82 PathProgramCache]: Analyzing trace with hash -594554620, now seen corresponding path program 100 times [2021-05-02 12:46:52,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:46:52,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233330963] [2021-05-02 12:46:52,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:46:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:46:57,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:46:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:46:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 10000 backedges. 0 proven. 10000 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:46:57,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:46:57,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233330963] [2021-05-02 12:46:57,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233330963] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:46:57,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70853983] [2021-05-02 12:46:57,341 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:46:57,515 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:46:57,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:46:57,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 104 conjunts are in the unsatisfiable core [2021-05-02 12:46:57,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:46:57,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:57,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:46:58,152 INFO L134 CoverageAnalysis]: Checked inductivity of 10000 backedges. 0 proven. 10000 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:46:58,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70853983] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:46:58,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:46:58,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 105] total 109 [2021-05-02 12:46:58,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473759238] [2021-05-02 12:46:58,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 109 states [2021-05-02 12:46:58,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:46:58,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2021-05-02 12:46:58,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5368, Invalid=6404, Unknown=0, NotChecked=0, Total=11772 [2021-05-02 12:46:58,156 INFO L87 Difference]: Start difference. First operand 212 states and 212 transitions. Second operand has 109 states, 109 states have (on average 1.9541284403669725) internal successors, (213), 106 states have internal predecessors, (213), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:47:05,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:47:05,304 INFO L93 Difference]: Finished difference Result 220 states and 220 transitions. [2021-05-02 12:47:05,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-05-02 12:47:05,305 INFO L78 Accepts]: Start accepts. Automaton has has 109 states, 109 states have (on average 1.9541284403669725) internal successors, (213), 106 states have internal predecessors, (213), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 211 [2021-05-02 12:47:05,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:47:05,307 INFO L225 Difference]: With dead ends: 220 [2021-05-02 12:47:05,307 INFO L226 Difference]: Without dead ends: 215 [2021-05-02 12:47:05,309 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6259 ImplicationChecksByTransitivity, 11778.0ms TimeCoverageRelationStatistics Valid=15886, Invalid=28846, Unknown=0, NotChecked=0, Total=44732 [2021-05-02 12:47:05,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-05-02 12:47:05,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 214. [2021-05-02 12:47:05,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.0047846889952152) internal successors, (210), 209 states have internal predecessors, (210), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:47:05,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 214 transitions. [2021-05-02 12:47:05,316 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 214 transitions. Word has length 211 [2021-05-02 12:47:05,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:47:05,316 INFO L480 AbstractCegarLoop]: Abstraction has 214 states and 214 transitions. [2021-05-02 12:47:05,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 109 states, 109 states have (on average 1.9541284403669725) internal successors, (213), 106 states have internal predecessors, (213), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:47:05,316 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 214 transitions. [2021-05-02 12:47:05,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-05-02 12:47:05,319 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:47:05,320 INFO L523 BasicCegarLoop]: trace histogram [101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:47:05,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-05-02 12:47:05,539 INFO L428 AbstractCegarLoop]: === Iteration 102 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:47:05,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:47:05,539 INFO L82 PathProgramCache]: Analyzing trace with hash 963808960, now seen corresponding path program 101 times [2021-05-02 12:47:05,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:47:05,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448021822] [2021-05-02 12:47:05,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:47:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:47:11,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:47:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:47:11,371 INFO L134 CoverageAnalysis]: Checked inductivity of 10201 backedges. 0 proven. 10201 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:47:11,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:47:11,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448021822] [2021-05-02 12:47:11,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448021822] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:47:11,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107888037] [2021-05-02 12:47:11,372 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:47:11,624 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 102 check-sat command(s) [2021-05-02 12:47:11,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:47:11,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 108 conjunts are in the unsatisfiable core [2021-05-02 12:47:11,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:47:11,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:11,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:12,417 INFO L134 CoverageAnalysis]: Checked inductivity of 10201 backedges. 0 proven. 10201 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:47:12,417 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107888037] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:47:12,417 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:47:12,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 106] total 110 [2021-05-02 12:47:12,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395764891] [2021-05-02 12:47:12,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 110 states [2021-05-02 12:47:12,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:47:12,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2021-05-02 12:47:12,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5472, Invalid=6518, Unknown=0, NotChecked=0, Total=11990 [2021-05-02 12:47:12,419 INFO L87 Difference]: Start difference. First operand 214 states and 214 transitions. Second operand has 110 states, 110 states have (on average 1.9545454545454546) internal successors, (215), 107 states have internal predecessors, (215), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:47:21,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:47:21,882 INFO L93 Difference]: Finished difference Result 222 states and 222 transitions. [2021-05-02 12:47:21,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-05-02 12:47:21,883 INFO L78 Accepts]: Start accepts. Automaton has has 110 states, 110 states have (on average 1.9545454545454546) internal successors, (215), 107 states have internal predecessors, (215), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2021-05-02 12:47:21,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:47:21,883 INFO L225 Difference]: With dead ends: 222 [2021-05-02 12:47:21,883 INFO L226 Difference]: Without dead ends: 217 [2021-05-02 12:47:21,886 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6372 ImplicationChecksByTransitivity, 14580.3ms TimeCoverageRelationStatistics Valid=16196, Invalid=29386, Unknown=0, NotChecked=0, Total=45582 [2021-05-02 12:47:21,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-05-02 12:47:21,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 216. [2021-05-02 12:47:21,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.004739336492891) internal successors, (212), 211 states have internal predecessors, (212), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:47:21,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 216 transitions. [2021-05-02 12:47:21,895 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 216 transitions. Word has length 213 [2021-05-02 12:47:21,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:47:21,896 INFO L480 AbstractCegarLoop]: Abstraction has 216 states and 216 transitions. [2021-05-02 12:47:21,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 110 states, 110 states have (on average 1.9545454545454546) internal successors, (215), 107 states have internal predecessors, (215), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:47:21,896 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 216 transitions. [2021-05-02 12:47:21,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-05-02 12:47:21,896 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:47:21,897 INFO L523 BasicCegarLoop]: trace histogram [102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:47:22,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-05-02 12:47:22,110 INFO L428 AbstractCegarLoop]: === Iteration 103 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:47:22,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:47:22,111 INFO L82 PathProgramCache]: Analyzing trace with hash -392376964, now seen corresponding path program 102 times [2021-05-02 12:47:22,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:47:22,111 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694984039] [2021-05-02 12:47:22,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:47:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:47:29,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:47:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:47:29,312 INFO L134 CoverageAnalysis]: Checked inductivity of 10404 backedges. 0 proven. 10404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:47:29,313 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:47:29,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694984039] [2021-05-02 12:47:29,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694984039] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:47:29,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71491902] [2021-05-02 12:47:29,313 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:47:29,652 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 103 check-sat command(s) [2021-05-02 12:47:29,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:47:29,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 109 conjunts are in the unsatisfiable core [2021-05-02 12:47:29,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:47:29,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:29,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 10404 backedges. 0 proven. 10404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:47:30,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71491902] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:47:30,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:47:30,568 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 107] total 111 [2021-05-02 12:47:30,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712110320] [2021-05-02 12:47:30,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 111 states [2021-05-02 12:47:30,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:47:30,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2021-05-02 12:47:30,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5577, Invalid=6633, Unknown=0, NotChecked=0, Total=12210 [2021-05-02 12:47:30,573 INFO L87 Difference]: Start difference. First operand 216 states and 216 transitions. Second operand has 111 states, 111 states have (on average 1.954954954954955) internal successors, (217), 108 states have internal predecessors, (217), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:47:40,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:47:40,021 INFO L93 Difference]: Finished difference Result 224 states and 224 transitions. [2021-05-02 12:47:40,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-05-02 12:47:40,022 INFO L78 Accepts]: Start accepts. Automaton has has 111 states, 111 states have (on average 1.954954954954955) internal successors, (217), 108 states have internal predecessors, (217), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2021-05-02 12:47:40,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:47:40,023 INFO L225 Difference]: With dead ends: 224 [2021-05-02 12:47:40,023 INFO L226 Difference]: Without dead ends: 219 [2021-05-02 12:47:40,025 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6486 ImplicationChecksByTransitivity, 16095.1ms TimeCoverageRelationStatistics Valid=16509, Invalid=29931, Unknown=0, NotChecked=0, Total=46440 [2021-05-02 12:47:40,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-05-02 12:47:40,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 218. [2021-05-02 12:47:40,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 213 states have (on average 1.0046948356807512) internal successors, (214), 213 states have internal predecessors, (214), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:47:40,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 218 transitions. [2021-05-02 12:47:40,031 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 218 transitions. Word has length 215 [2021-05-02 12:47:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:47:40,031 INFO L480 AbstractCegarLoop]: Abstraction has 218 states and 218 transitions. [2021-05-02 12:47:40,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 111 states, 111 states have (on average 1.954954954954955) internal successors, (217), 108 states have internal predecessors, (217), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:47:40,031 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 218 transitions. [2021-05-02 12:47:40,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-05-02 12:47:40,032 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:47:40,032 INFO L523 BasicCegarLoop]: trace histogram [103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:47:40,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-05-02 12:47:40,233 INFO L428 AbstractCegarLoop]: === Iteration 104 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:47:40,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:47:40,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1983008056, now seen corresponding path program 103 times [2021-05-02 12:47:40,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:47:40,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806294676] [2021-05-02 12:47:40,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:47:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:47:47,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:47:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:47:47,502 INFO L134 CoverageAnalysis]: Checked inductivity of 10609 backedges. 0 proven. 10609 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:47:47,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:47:47,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806294676] [2021-05-02 12:47:47,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806294676] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:47:47,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212655122] [2021-05-02 12:47:47,502 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:47:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:47:47,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 110 conjunts are in the unsatisfiable core [2021-05-02 12:47:47,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:47:47,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:47,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:47:48,702 INFO L134 CoverageAnalysis]: Checked inductivity of 10609 backedges. 0 proven. 10609 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:47:48,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212655122] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:47:48,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:47:48,703 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 108] total 112 [2021-05-02 12:47:48,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452944260] [2021-05-02 12:47:48,703 INFO L460 AbstractCegarLoop]: Interpolant automaton has 112 states [2021-05-02 12:47:48,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:47:48,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2021-05-02 12:47:48,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5683, Invalid=6749, Unknown=0, NotChecked=0, Total=12432 [2021-05-02 12:47:48,705 INFO L87 Difference]: Start difference. First operand 218 states and 218 transitions. Second operand has 112 states, 112 states have (on average 1.9553571428571428) internal successors, (219), 109 states have internal predecessors, (219), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:47:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:47:58,090 INFO L93 Difference]: Finished difference Result 226 states and 226 transitions. [2021-05-02 12:47:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-05-02 12:47:58,091 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 112 states have (on average 1.9553571428571428) internal successors, (219), 109 states have internal predecessors, (219), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2021-05-02 12:47:58,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:47:58,092 INFO L225 Difference]: With dead ends: 226 [2021-05-02 12:47:58,092 INFO L226 Difference]: Without dead ends: 221 [2021-05-02 12:47:58,094 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6601 ImplicationChecksByTransitivity, 16015.6ms TimeCoverageRelationStatistics Valid=16825, Invalid=30481, Unknown=0, NotChecked=0, Total=47306 [2021-05-02 12:47:58,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-05-02 12:47:58,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 220. [2021-05-02 12:47:58,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.0046511627906978) internal successors, (216), 215 states have internal predecessors, (216), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:47:58,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 220 transitions. [2021-05-02 12:47:58,100 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 220 transitions. Word has length 217 [2021-05-02 12:47:58,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:47:58,100 INFO L480 AbstractCegarLoop]: Abstraction has 220 states and 220 transitions. [2021-05-02 12:47:58,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 112 states, 112 states have (on average 1.9553571428571428) internal successors, (219), 109 states have internal predecessors, (219), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:47:58,104 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 220 transitions. [2021-05-02 12:47:58,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-05-02 12:47:58,106 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:47:58,106 INFO L523 BasicCegarLoop]: trace histogram [104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:47:58,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-05-02 12:47:58,325 INFO L428 AbstractCegarLoop]: === Iteration 105 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:47:58,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:47:58,325 INFO L82 PathProgramCache]: Analyzing trace with hash -194589196, now seen corresponding path program 104 times [2021-05-02 12:47:58,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:47:58,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988322200] [2021-05-02 12:47:58,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:47:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:48:04,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:48:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:48:04,633 INFO L134 CoverageAnalysis]: Checked inductivity of 10816 backedges. 0 proven. 10816 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:48:04,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:48:04,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988322200] [2021-05-02 12:48:04,634 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988322200] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:48:04,634 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584393524] [2021-05-02 12:48:04,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:48:04,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:48:04,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:48:04,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 111 conjunts are in the unsatisfiable core [2021-05-02 12:48:04,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:48:04,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:04,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:05,419 INFO L134 CoverageAnalysis]: Checked inductivity of 10816 backedges. 0 proven. 10816 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:48:05,419 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584393524] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:48:05,419 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:48:05,419 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [110, 109] total 113 [2021-05-02 12:48:05,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680115882] [2021-05-02 12:48:05,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 113 states [2021-05-02 12:48:05,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:48:05,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2021-05-02 12:48:05,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5790, Invalid=6866, Unknown=0, NotChecked=0, Total=12656 [2021-05-02 12:48:05,421 INFO L87 Difference]: Start difference. First operand 220 states and 220 transitions. Second operand has 113 states, 113 states have (on average 1.9557522123893805) internal successors, (221), 110 states have internal predecessors, (221), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:48:15,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:48:15,496 INFO L93 Difference]: Finished difference Result 228 states and 228 transitions. [2021-05-02 12:48:15,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2021-05-02 12:48:15,497 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 113 states have (on average 1.9557522123893805) internal successors, (221), 110 states have internal predecessors, (221), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2021-05-02 12:48:15,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:48:15,498 INFO L225 Difference]: With dead ends: 228 [2021-05-02 12:48:15,498 INFO L226 Difference]: Without dead ends: 223 [2021-05-02 12:48:15,501 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6717 ImplicationChecksByTransitivity, 15586.9ms TimeCoverageRelationStatistics Valid=17144, Invalid=31036, Unknown=0, NotChecked=0, Total=48180 [2021-05-02 12:48:15,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-05-02 12:48:15,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 222. [2021-05-02 12:48:15,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.0046082949308757) internal successors, (218), 217 states have internal predecessors, (218), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:48:15,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 222 transitions. [2021-05-02 12:48:15,508 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 222 transitions. Word has length 219 [2021-05-02 12:48:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:48:15,508 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 222 transitions. [2021-05-02 12:48:15,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 113 states, 113 states have (on average 1.9557522123893805) internal successors, (221), 110 states have internal predecessors, (221), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:48:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 222 transitions. [2021-05-02 12:48:15,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-05-02 12:48:15,509 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:48:15,509 INFO L523 BasicCegarLoop]: trace histogram [105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:48:15,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2021-05-02 12:48:15,711 INFO L428 AbstractCegarLoop]: === Iteration 106 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:48:15,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:48:15,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1216475216, now seen corresponding path program 105 times [2021-05-02 12:48:15,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:48:15,712 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853865708] [2021-05-02 12:48:15,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:48:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:48:22,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:48:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:48:22,748 INFO L134 CoverageAnalysis]: Checked inductivity of 11025 backedges. 0 proven. 11025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:48:22,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:48:22,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853865708] [2021-05-02 12:48:22,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853865708] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:48:22,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663848593] [2021-05-02 12:48:22,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:48:23,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 106 check-sat command(s) [2021-05-02 12:48:23,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:48:23,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 112 conjunts are in the unsatisfiable core [2021-05-02 12:48:23,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:48:23,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:23,951 INFO L134 CoverageAnalysis]: Checked inductivity of 11025 backedges. 0 proven. 11025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:48:23,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663848593] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:48:23,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:48:23,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [111, 110] total 114 [2021-05-02 12:48:23,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989277862] [2021-05-02 12:48:23,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 114 states [2021-05-02 12:48:23,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:48:23,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2021-05-02 12:48:23,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5898, Invalid=6984, Unknown=0, NotChecked=0, Total=12882 [2021-05-02 12:48:23,953 INFO L87 Difference]: Start difference. First operand 222 states and 222 transitions. Second operand has 114 states, 114 states have (on average 1.956140350877193) internal successors, (223), 111 states have internal predecessors, (223), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:48:34,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:48:34,354 INFO L93 Difference]: Finished difference Result 230 states and 230 transitions. [2021-05-02 12:48:34,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-05-02 12:48:34,355 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 114 states have (on average 1.956140350877193) internal successors, (223), 111 states have internal predecessors, (223), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 221 [2021-05-02 12:48:34,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:48:34,356 INFO L225 Difference]: With dead ends: 230 [2021-05-02 12:48:34,356 INFO L226 Difference]: Without dead ends: 225 [2021-05-02 12:48:34,358 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6834 ImplicationChecksByTransitivity, 16736.8ms TimeCoverageRelationStatistics Valid=17466, Invalid=31596, Unknown=0, NotChecked=0, Total=49062 [2021-05-02 12:48:34,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-05-02 12:48:34,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 224. [2021-05-02 12:48:34,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 219 states have (on average 1.004566210045662) internal successors, (220), 219 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:48:34,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 224 transitions. [2021-05-02 12:48:34,364 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 224 transitions. Word has length 221 [2021-05-02 12:48:34,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:48:34,365 INFO L480 AbstractCegarLoop]: Abstraction has 224 states and 224 transitions. [2021-05-02 12:48:34,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 114 states, 114 states have (on average 1.956140350877193) internal successors, (223), 111 states have internal predecessors, (223), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:48:34,365 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 224 transitions. [2021-05-02 12:48:34,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-05-02 12:48:34,365 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:48:34,365 INFO L523 BasicCegarLoop]: trace histogram [106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:48:34,584 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2021-05-02 12:48:34,585 INFO L428 AbstractCegarLoop]: === Iteration 107 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:48:34,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:48:34,585 INFO L82 PathProgramCache]: Analyzing trace with hash 298570348, now seen corresponding path program 106 times [2021-05-02 12:48:34,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:48:34,585 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970532201] [2021-05-02 12:48:34,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:48:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:48:41,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:48:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:48:41,750 INFO L134 CoverageAnalysis]: Checked inductivity of 11236 backedges. 0 proven. 11236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:48:41,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:48:41,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970532201] [2021-05-02 12:48:41,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970532201] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:48:41,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201658398] [2021-05-02 12:48:41,750 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:48:41,938 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:48:41,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:48:41,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 110 conjunts are in the unsatisfiable core [2021-05-02 12:48:41,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:48:41,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:41,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:41,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:41,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:41,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:41,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:48:42,856 INFO L134 CoverageAnalysis]: Checked inductivity of 11236 backedges. 0 proven. 11236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:48:42,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201658398] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:48:42,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:48:42,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 111] total 115 [2021-05-02 12:48:42,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793550509] [2021-05-02 12:48:42,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 115 states [2021-05-02 12:48:42,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:48:42,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2021-05-02 12:48:42,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6007, Invalid=7103, Unknown=0, NotChecked=0, Total=13110 [2021-05-02 12:48:42,858 INFO L87 Difference]: Start difference. First operand 224 states and 224 transitions. Second operand has 115 states, 115 states have (on average 1.9565217391304348) internal successors, (225), 112 states have internal predecessors, (225), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:48:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:48:55,041 INFO L93 Difference]: Finished difference Result 232 states and 232 transitions. [2021-05-02 12:48:55,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2021-05-02 12:48:55,042 INFO L78 Accepts]: Start accepts. Automaton has has 115 states, 115 states have (on average 1.9565217391304348) internal successors, (225), 112 states have internal predecessors, (225), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 223 [2021-05-02 12:48:55,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:48:55,043 INFO L225 Difference]: With dead ends: 232 [2021-05-02 12:48:55,043 INFO L226 Difference]: Without dead ends: 227 [2021-05-02 12:48:55,046 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6952 ImplicationChecksByTransitivity, 18523.9ms TimeCoverageRelationStatistics Valid=17791, Invalid=32161, Unknown=0, NotChecked=0, Total=49952 [2021-05-02 12:48:55,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-05-02 12:48:55,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 226. [2021-05-02 12:48:55,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.004524886877828) internal successors, (222), 221 states have internal predecessors, (222), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:48:55,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 226 transitions. [2021-05-02 12:48:55,052 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 226 transitions. Word has length 223 [2021-05-02 12:48:55,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:48:55,052 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 226 transitions. [2021-05-02 12:48:55,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 115 states, 115 states have (on average 1.9565217391304348) internal successors, (225), 112 states have internal predecessors, (225), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:48:55,053 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 226 transitions. [2021-05-02 12:48:55,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-05-02 12:48:55,053 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:48:55,053 INFO L523 BasicCegarLoop]: trace histogram [107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:48:55,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106,107 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:48:55,254 INFO L428 AbstractCegarLoop]: === Iteration 108 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:48:55,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:48:55,254 INFO L82 PathProgramCache]: Analyzing trace with hash 263444008, now seen corresponding path program 107 times [2021-05-02 12:48:55,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:48:55,254 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819920989] [2021-05-02 12:48:55,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:48:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:49:02,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:49:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:49:02,527 INFO L134 CoverageAnalysis]: Checked inductivity of 11449 backedges. 0 proven. 11449 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:49:02,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:49:02,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819920989] [2021-05-02 12:49:02,527 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819920989] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:49:02,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822081082] [2021-05-02 12:49:02,527 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:49:02,793 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 108 check-sat command(s) [2021-05-02 12:49:02,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:49:02,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 114 conjunts are in the unsatisfiable core [2021-05-02 12:49:02,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:49:02,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:02,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 11449 backedges. 0 proven. 11449 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:49:03,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822081082] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:49:03,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:49:03,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 112] total 116 [2021-05-02 12:49:03,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590064369] [2021-05-02 12:49:03,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 116 states [2021-05-02 12:49:03,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:49:03,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2021-05-02 12:49:03,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6117, Invalid=7223, Unknown=0, NotChecked=0, Total=13340 [2021-05-02 12:49:03,633 INFO L87 Difference]: Start difference. First operand 226 states and 226 transitions. Second operand has 116 states, 116 states have (on average 1.956896551724138) internal successors, (227), 113 states have internal predecessors, (227), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:49:15,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:49:15,477 INFO L93 Difference]: Finished difference Result 234 states and 234 transitions. [2021-05-02 12:49:15,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-05-02 12:49:15,478 INFO L78 Accepts]: Start accepts. Automaton has has 116 states, 116 states have (on average 1.956896551724138) internal successors, (227), 113 states have internal predecessors, (227), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 225 [2021-05-02 12:49:15,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:49:15,479 INFO L225 Difference]: With dead ends: 234 [2021-05-02 12:49:15,479 INFO L226 Difference]: Without dead ends: 229 [2021-05-02 12:49:15,482 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7071 ImplicationChecksByTransitivity, 18259.6ms TimeCoverageRelationStatistics Valid=18119, Invalid=32731, Unknown=0, NotChecked=0, Total=50850 [2021-05-02 12:49:15,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-05-02 12:49:15,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 228. [2021-05-02 12:49:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.0044843049327354) internal successors, (224), 223 states have internal predecessors, (224), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:49:15,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 228 transitions. [2021-05-02 12:49:15,488 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 228 transitions. Word has length 225 [2021-05-02 12:49:15,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:49:15,488 INFO L480 AbstractCegarLoop]: Abstraction has 228 states and 228 transitions. [2021-05-02 12:49:15,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 116 states, 116 states have (on average 1.956896551724138) internal successors, (227), 113 states have internal predecessors, (227), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:49:15,489 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 228 transitions. [2021-05-02 12:49:15,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-05-02 12:49:15,489 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:49:15,489 INFO L523 BasicCegarLoop]: trace histogram [108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:49:15,708 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2021-05-02 12:49:15,709 INFO L428 AbstractCegarLoop]: === Iteration 109 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:49:15,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:49:15,709 INFO L82 PathProgramCache]: Analyzing trace with hash 866769636, now seen corresponding path program 108 times [2021-05-02 12:49:15,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:49:15,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85992364] [2021-05-02 12:49:15,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:49:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:49:24,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:49:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:49:24,077 INFO L134 CoverageAnalysis]: Checked inductivity of 11664 backedges. 0 proven. 11664 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:49:24,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:49:24,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85992364] [2021-05-02 12:49:24,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85992364] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:49:24,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009815120] [2021-05-02 12:49:24,078 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:49:24,382 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 109 check-sat command(s) [2021-05-02 12:49:24,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:49:24,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 115 conjunts are in the unsatisfiable core [2021-05-02 12:49:24,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:49:24,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:24,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:25,491 INFO L134 CoverageAnalysis]: Checked inductivity of 11664 backedges. 0 proven. 11664 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:49:25,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009815120] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:49:25,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:49:25,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [114, 113] total 117 [2021-05-02 12:49:25,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512799479] [2021-05-02 12:49:25,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 117 states [2021-05-02 12:49:25,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:49:25,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2021-05-02 12:49:25,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6228, Invalid=7344, Unknown=0, NotChecked=0, Total=13572 [2021-05-02 12:49:25,493 INFO L87 Difference]: Start difference. First operand 228 states and 228 transitions. Second operand has 117 states, 117 states have (on average 1.9572649572649572) internal successors, (229), 114 states have internal predecessors, (229), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:49:38,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:49:38,965 INFO L93 Difference]: Finished difference Result 236 states and 236 transitions. [2021-05-02 12:49:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-05-02 12:49:38,966 INFO L78 Accepts]: Start accepts. Automaton has has 117 states, 117 states have (on average 1.9572649572649572) internal successors, (229), 114 states have internal predecessors, (229), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 227 [2021-05-02 12:49:38,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:49:38,966 INFO L225 Difference]: With dead ends: 236 [2021-05-02 12:49:38,966 INFO L226 Difference]: Without dead ends: 231 [2021-05-02 12:49:38,969 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7191 ImplicationChecksByTransitivity, 20934.2ms TimeCoverageRelationStatistics Valid=18450, Invalid=33306, Unknown=0, NotChecked=0, Total=51756 [2021-05-02 12:49:38,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-05-02 12:49:38,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 230. [2021-05-02 12:49:38,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.0044444444444445) internal successors, (226), 225 states have internal predecessors, (226), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:49:38,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 230 transitions. [2021-05-02 12:49:38,976 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 230 transitions. Word has length 227 [2021-05-02 12:49:38,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:49:38,976 INFO L480 AbstractCegarLoop]: Abstraction has 230 states and 230 transitions. [2021-05-02 12:49:38,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 117 states, 117 states have (on average 1.9572649572649572) internal successors, (229), 114 states have internal predecessors, (229), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:49:38,976 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 230 transitions. [2021-05-02 12:49:38,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-05-02 12:49:38,977 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:49:38,977 INFO L523 BasicCegarLoop]: trace histogram [109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:49:39,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,109 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:49:39,195 INFO L428 AbstractCegarLoop]: === Iteration 110 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:49:39,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:49:39,196 INFO L82 PathProgramCache]: Analyzing trace with hash 842113184, now seen corresponding path program 109 times [2021-05-02 12:49:39,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:49:39,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738184868] [2021-05-02 12:49:39,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:49:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:49:47,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:49:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:49:47,560 INFO L134 CoverageAnalysis]: Checked inductivity of 11881 backedges. 0 proven. 11881 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:49:47,560 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:49:47,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738184868] [2021-05-02 12:49:47,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738184868] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:49:47,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888770533] [2021-05-02 12:49:47,561 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:49:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:49:47,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 116 conjunts are in the unsatisfiable core [2021-05-02 12:49:47,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:49:47,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:47,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:49:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 11881 backedges. 0 proven. 11881 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:49:48,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888770533] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:49:48,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:49:48,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 114] total 118 [2021-05-02 12:49:48,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186356885] [2021-05-02 12:49:48,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 118 states [2021-05-02 12:49:48,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:49:48,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2021-05-02 12:49:48,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6340, Invalid=7466, Unknown=0, NotChecked=0, Total=13806 [2021-05-02 12:49:48,823 INFO L87 Difference]: Start difference. First operand 230 states and 230 transitions. Second operand has 118 states, 118 states have (on average 1.9576271186440677) internal successors, (231), 115 states have internal predecessors, (231), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:50:01,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:50:01,342 INFO L93 Difference]: Finished difference Result 238 states and 238 transitions. [2021-05-02 12:50:01,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2021-05-02 12:50:01,343 INFO L78 Accepts]: Start accepts. Automaton has has 118 states, 118 states have (on average 1.9576271186440677) internal successors, (231), 115 states have internal predecessors, (231), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 229 [2021-05-02 12:50:01,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:50:01,348 INFO L225 Difference]: With dead ends: 238 [2021-05-02 12:50:01,349 INFO L226 Difference]: Without dead ends: 233 [2021-05-02 12:50:01,352 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7312 ImplicationChecksByTransitivity, 20069.5ms TimeCoverageRelationStatistics Valid=18784, Invalid=33886, Unknown=0, NotChecked=0, Total=52670 [2021-05-02 12:50:01,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-05-02 12:50:01,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 232. [2021-05-02 12:50:01,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 227 states have (on average 1.0044052863436124) internal successors, (228), 227 states have internal predecessors, (228), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:50:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 232 transitions. [2021-05-02 12:50:01,360 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 232 transitions. Word has length 229 [2021-05-02 12:50:01,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:50:01,360 INFO L480 AbstractCegarLoop]: Abstraction has 232 states and 232 transitions. [2021-05-02 12:50:01,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 118 states, 118 states have (on average 1.9576271186440677) internal successors, (231), 115 states have internal predecessors, (231), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:50:01,361 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 232 transitions. [2021-05-02 12:50:01,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-05-02 12:50:01,361 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:50:01,361 INFO L523 BasicCegarLoop]: trace histogram [110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:50:01,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2021-05-02 12:50:01,577 INFO L428 AbstractCegarLoop]: === Iteration 111 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:50:01,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:50:01,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1377900708, now seen corresponding path program 110 times [2021-05-02 12:50:01,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:50:01,578 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666039842] [2021-05-02 12:50:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:50:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:50:11,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:50:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:50:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 12100 backedges. 0 proven. 12100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:50:11,011 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:50:11,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666039842] [2021-05-02 12:50:11,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666039842] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:50:11,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79623211] [2021-05-02 12:50:11,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:50:11,191 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:50:11,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:50:11,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 1283 conjuncts, 117 conjunts are in the unsatisfiable core [2021-05-02 12:50:11,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:50:11,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:11,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:12,355 INFO L134 CoverageAnalysis]: Checked inductivity of 12100 backedges. 0 proven. 12100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:50:12,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79623211] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:50:12,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:50:12,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [116, 115] total 119 [2021-05-02 12:50:12,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134882871] [2021-05-02 12:50:12,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 119 states [2021-05-02 12:50:12,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:50:12,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2021-05-02 12:50:12,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6453, Invalid=7589, Unknown=0, NotChecked=0, Total=14042 [2021-05-02 12:50:12,358 INFO L87 Difference]: Start difference. First operand 232 states and 232 transitions. Second operand has 119 states, 119 states have (on average 1.9579831932773109) internal successors, (233), 116 states have internal predecessors, (233), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:50:31,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:50:31,529 INFO L93 Difference]: Finished difference Result 240 states and 240 transitions. [2021-05-02 12:50:31,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-05-02 12:50:31,531 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 119 states have (on average 1.9579831932773109) internal successors, (233), 116 states have internal predecessors, (233), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 231 [2021-05-02 12:50:31,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:50:31,532 INFO L225 Difference]: With dead ends: 240 [2021-05-02 12:50:31,532 INFO L226 Difference]: Without dead ends: 235 [2021-05-02 12:50:31,534 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7434 ImplicationChecksByTransitivity, 27402.9ms TimeCoverageRelationStatistics Valid=19121, Invalid=34471, Unknown=0, NotChecked=0, Total=53592 [2021-05-02 12:50:31,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-05-02 12:50:31,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 234. [2021-05-02 12:50:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 229 states have (on average 1.0043668122270741) internal successors, (230), 229 states have internal predecessors, (230), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:50:31,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 234 transitions. [2021-05-02 12:50:31,541 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 234 transitions. Word has length 231 [2021-05-02 12:50:31,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:50:31,541 INFO L480 AbstractCegarLoop]: Abstraction has 234 states and 234 transitions. [2021-05-02 12:50:31,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 119 states, 119 states have (on average 1.9579831932773109) internal successors, (233), 116 states have internal predecessors, (233), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:50:31,542 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 234 transitions. [2021-05-02 12:50:31,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-05-02 12:50:31,543 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:50:31,543 INFO L523 BasicCegarLoop]: trace histogram [111, 111, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:50:31,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,111 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:50:31,758 INFO L428 AbstractCegarLoop]: === Iteration 112 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:50:31,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:50:31,758 INFO L82 PathProgramCache]: Analyzing trace with hash -212504808, now seen corresponding path program 111 times [2021-05-02 12:50:31,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:50:31,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177690140] [2021-05-02 12:50:31,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:50:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:50:43,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:50:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:50:43,232 INFO L134 CoverageAnalysis]: Checked inductivity of 12321 backedges. 0 proven. 12321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:50:43,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:50:43,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177690140] [2021-05-02 12:50:43,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177690140] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:50:43,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520437191] [2021-05-02 12:50:43,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:50:43,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 112 check-sat command(s) [2021-05-02 12:50:43,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:50:43,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 118 conjunts are in the unsatisfiable core [2021-05-02 12:50:43,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:50:43,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:43,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:44,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:50:45,164 INFO L134 CoverageAnalysis]: Checked inductivity of 12321 backedges. 0 proven. 12321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:50:45,164 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520437191] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:50:45,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:50:45,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 116] total 120 [2021-05-02 12:50:45,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646346692] [2021-05-02 12:50:45,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 120 states [2021-05-02 12:50:45,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:50:45,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2021-05-02 12:50:45,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6567, Invalid=7713, Unknown=0, NotChecked=0, Total=14280 [2021-05-02 12:50:45,167 INFO L87 Difference]: Start difference. First operand 234 states and 234 transitions. Second operand has 120 states, 120 states have (on average 1.9583333333333333) internal successors, (235), 117 states have internal predecessors, (235), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:50:59,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:50:59,551 INFO L93 Difference]: Finished difference Result 242 states and 242 transitions. [2021-05-02 12:50:59,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-05-02 12:50:59,553 INFO L78 Accepts]: Start accepts. Automaton has has 120 states, 120 states have (on average 1.9583333333333333) internal successors, (235), 117 states have internal predecessors, (235), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 233 [2021-05-02 12:50:59,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:50:59,553 INFO L225 Difference]: With dead ends: 242 [2021-05-02 12:50:59,553 INFO L226 Difference]: Without dead ends: 237 [2021-05-02 12:50:59,555 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7557 ImplicationChecksByTransitivity, 24874.6ms TimeCoverageRelationStatistics Valid=19461, Invalid=35061, Unknown=0, NotChecked=0, Total=54522 [2021-05-02 12:50:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-05-02 12:50:59,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 236. [2021-05-02 12:50:59,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.0043290043290043) internal successors, (232), 231 states have internal predecessors, (232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:50:59,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 236 transitions. [2021-05-02 12:50:59,562 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 236 transitions. Word has length 233 [2021-05-02 12:50:59,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:50:59,562 INFO L480 AbstractCegarLoop]: Abstraction has 236 states and 236 transitions. [2021-05-02 12:50:59,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 120 states, 120 states have (on average 1.9583333333333333) internal successors, (235), 117 states have internal predecessors, (235), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:50:59,563 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 236 transitions. [2021-05-02 12:50:59,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-05-02 12:50:59,563 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:50:59,563 INFO L523 BasicCegarLoop]: trace histogram [112, 112, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:50:59,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2021-05-02 12:50:59,764 INFO L428 AbstractCegarLoop]: === Iteration 113 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:50:59,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:50:59,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1253509164, now seen corresponding path program 112 times [2021-05-02 12:50:59,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:50:59,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167325525] [2021-05-02 12:50:59,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:50:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:51:08,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:51:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:51:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 12544 backedges. 0 proven. 12544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:51:08,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:51:08,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167325525] [2021-05-02 12:51:08,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167325525] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:51:08,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825187157] [2021-05-02 12:51:08,606 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:51:08,784 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:51:08,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:51:08,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 1305 conjuncts, 116 conjunts are in the unsatisfiable core [2021-05-02 12:51:08,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:51:08,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:08,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 12544 backedges. 0 proven. 12544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:51:09,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825187157] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:51:09,646 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:51:09,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 117] total 121 [2021-05-02 12:51:09,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380343807] [2021-05-02 12:51:09,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 121 states [2021-05-02 12:51:09,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:51:09,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2021-05-02 12:51:09,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6682, Invalid=7838, Unknown=0, NotChecked=0, Total=14520 [2021-05-02 12:51:09,648 INFO L87 Difference]: Start difference. First operand 236 states and 236 transitions. Second operand has 121 states, 121 states have (on average 1.9586776859504131) internal successors, (237), 118 states have internal predecessors, (237), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:51:22,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:51:22,669 INFO L93 Difference]: Finished difference Result 244 states and 244 transitions. [2021-05-02 12:51:22,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-05-02 12:51:22,670 INFO L78 Accepts]: Start accepts. Automaton has has 121 states, 121 states have (on average 1.9586776859504131) internal successors, (237), 118 states have internal predecessors, (237), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2021-05-02 12:51:22,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:51:22,670 INFO L225 Difference]: With dead ends: 244 [2021-05-02 12:51:22,670 INFO L226 Difference]: Without dead ends: 239 [2021-05-02 12:51:22,673 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7681 ImplicationChecksByTransitivity, 21024.2ms TimeCoverageRelationStatistics Valid=19804, Invalid=35656, Unknown=0, NotChecked=0, Total=55460 [2021-05-02 12:51:22,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-05-02 12:51:22,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 238. [2021-05-02 12:51:22,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 233 states have (on average 1.0042918454935623) internal successors, (234), 233 states have internal predecessors, (234), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:51:22,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 238 transitions. [2021-05-02 12:51:22,678 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 238 transitions. Word has length 235 [2021-05-02 12:51:22,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:51:22,679 INFO L480 AbstractCegarLoop]: Abstraction has 238 states and 238 transitions. [2021-05-02 12:51:22,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 121 states, 121 states have (on average 1.9586776859504131) internal successors, (237), 118 states have internal predecessors, (237), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 12:51:22,679 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 238 transitions. [2021-05-02 12:51:22,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-05-02 12:51:22,679 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:51:22,679 INFO L523 BasicCegarLoop]: trace histogram [113, 113, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:51:22,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-05-02 12:51:22,880 INFO L428 AbstractCegarLoop]: === Iteration 114 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:51:22,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:51:22,880 INFO L82 PathProgramCache]: Analyzing trace with hash -931315312, now seen corresponding path program 113 times [2021-05-02 12:51:22,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:51:22,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985186040] [2021-05-02 12:51:22,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:51:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:51:31,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:51:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:51:31,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12769 backedges. 0 proven. 12769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:51:31,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:51:31,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985186040] [2021-05-02 12:51:31,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985186040] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:51:31,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198057134] [2021-05-02 12:51:31,843 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:51:32,135 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 114 check-sat command(s) [2021-05-02 12:51:32,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:51:32,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 120 conjunts are in the unsatisfiable core [2021-05-02 12:51:32,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:51:32,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:32,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:51:33,626 INFO L134 CoverageAnalysis]: Checked inductivity of 12769 backedges. 0 proven. 12769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:51:33,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198057134] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:51:33,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:51:33,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [119, 118] total 122 [2021-05-02 12:51:33,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543483209] [2021-05-02 12:51:33,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 122 states [2021-05-02 12:51:33,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:51:33,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2021-05-02 12:51:33,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6798, Invalid=7964, Unknown=0, NotChecked=0, Total=14762 [2021-05-02 12:51:33,628 INFO L87 Difference]: Start difference. First operand 238 states and 238 transitions. Second operand has 122 states, 122 states have (on average 1.959016393442623) internal successors, (239), 119 states have internal predecessors, (239), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)