/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-invgen/half_2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 12:31:28,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 12:31:28,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 12:31:28,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-02 12:31:28,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 12:31:28,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 12:31:28,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 12:31:28,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 12:31:28,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 12:31:28,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 12:31:28,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 12:31:28,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 12:31:28,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 12:31:28,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 12:31:28,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 12:31:28,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 12:31:28,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 12:31:28,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 12:31:28,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 12:31:28,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 12:31:28,198 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 12:31:28,238 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 12:31:28,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 12:31:28,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-02 12:31:28,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-02 12:31:28,241 INFO L138 SettingsManager]: * Use SBE=true [2021-05-02 12:31:28,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 12:31:28,241 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 12:31:28,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 12:31:28,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 12:31:28,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 12:31:28,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 12:31:28,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 12:31:28,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 12:31:28,243 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 12:31:28,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 12:31:28,243 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 12:31:28,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 12:31:28,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 12:31:28,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 12:31:28,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 12:31:28,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 12:31:28,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 12:31:28,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-02 12:31:28,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-02 12:31:28,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 12:31:28,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-02 12:31:28,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-02 12:31:28,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-05-02 12:31:28,245 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 12:31:28,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 12:31:28,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 12:31:28,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 12:31:28,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 12:31:28,570 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 12:31:28,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/half_2.i [2021-05-02 12:31:28,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81f81ce91/a70916e8a18d4e33b56abe55abefaaed/FLAG64538f03d [2021-05-02 12:31:28,995 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 12:31:28,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/half_2.i [2021-05-02 12:31:29,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81f81ce91/a70916e8a18d4e33b56abe55abefaaed/FLAG64538f03d [2021-05-02 12:31:29,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81f81ce91/a70916e8a18d4e33b56abe55abefaaed [2021-05-02 12:31:29,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 12:31:29,426 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-02 12:31:29,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 12:31:29,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 12:31:29,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 12:31:29,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 12:31:29" (1/1) ... [2021-05-02 12:31:29,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef32ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:31:29, skipping insertion in model container [2021-05-02 12:31:29,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 12:31:29" (1/1) ... [2021-05-02 12:31:29,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 12:31:29,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 12:31:29,564 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-invgen/half_2.i[893,906] [2021-05-02 12:31:29,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 12:31:29,579 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 12:31:29,587 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-invgen/half_2.i[893,906] [2021-05-02 12:31:29,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 12:31:29,600 INFO L208 MainTranslator]: Completed translation [2021-05-02 12:31:29,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:31:29 WrapperNode [2021-05-02 12:31:29,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 12:31:29,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 12:31:29,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 12:31:29,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 12:31:29,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:31:29" (1/1) ... [2021-05-02 12:31:29,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:31:29" (1/1) ... [2021-05-02 12:31:29,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:31:29" (1/1) ... [2021-05-02 12:31:29,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:31:29" (1/1) ... [2021-05-02 12:31:29,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:31:29" (1/1) ... [2021-05-02 12:31:29,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:31:29" (1/1) ... [2021-05-02 12:31:29,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:31:29" (1/1) ... [2021-05-02 12:31:29,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 12:31:29,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 12:31:29,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 12:31:29,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 12:31:29,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:31:29" (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 12:31:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 12:31:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 12:31:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 12:31:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-02 12:31:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 12:31:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 12:31:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 12:31:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 12:31:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-02 12:31:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-02 12:31:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 12:31:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 12:31:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-02 12:31:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 12:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-02 12:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 12:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 12:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 12:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 12:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 12:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 12:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 12:31:29,937 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 12:31:29,937 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-05-02 12:31:29,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 12:31:29 BoogieIcfgContainer [2021-05-02 12:31:29,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 12:31:29,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 12:31:29,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 12:31:29,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 12:31:29,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 12:31:29" (1/3) ... [2021-05-02 12:31:29,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e6e7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 12:31:29, skipping insertion in model container [2021-05-02 12:31:29,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 12:31:29" (2/3) ... [2021-05-02 12:31:29,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e6e7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 12:31:29, skipping insertion in model container [2021-05-02 12:31:29,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 12:31:29" (3/3) ... [2021-05-02 12:31:29,944 INFO L111 eAbstractionObserver]: Analyzing ICFG half_2.i [2021-05-02 12:31:29,948 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-02 12:31:29,951 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 12:31:29,965 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 12:31:29,982 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 12:31:29,983 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-02 12:31:29,983 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-02 12:31:29,983 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 12:31:29,983 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 12:31:29,983 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 12:31:29,983 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 12:31:29,983 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 12:31:30,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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 12:31:30,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-02 12:31:30,005 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:30,005 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:30,005 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:30,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:30,009 INFO L82 PathProgramCache]: Analyzing trace with hash 21938802, now seen corresponding path program 1 times [2021-05-02 12:31:30,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:30,016 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035765815] [2021-05-02 12:31:30,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:30,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:30,362 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 12:31:30,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:30,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035765815] [2021-05-02 12:31:30,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035765815] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 12:31:30,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 12:31:30,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-02 12:31:30,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512312101] [2021-05-02 12:31:30,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-02 12:31:30,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:30,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-02 12:31:30,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-02 12:31:30,385 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 12:31:30,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:30,593 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2021-05-02 12:31:30,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-02 12:31:30,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 14 [2021-05-02 12:31:30,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:30,599 INFO L225 Difference]: With dead ends: 44 [2021-05-02 12:31:30,600 INFO L226 Difference]: Without dead ends: 19 [2021-05-02 12:31:30,602 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 163.0ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-05-02 12:31:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-05-02 12:31:30,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-05-02 12:31:30,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-02 12:31:30,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-05-02 12:31:30,635 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2021-05-02 12:31:30,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:30,635 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-05-02 12:31:30,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 12:31:30,636 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-05-02 12:31:30,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-02 12:31:30,637 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:30,637 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:30,637 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 12:31:30,637 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:30,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:30,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1438800602, now seen corresponding path program 1 times [2021-05-02 12:31:30,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:30,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368234826] [2021-05-02 12:31:30,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:30,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:30,823 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 12:31:30,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:30,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368234826] [2021-05-02 12:31:30,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368234826] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:30,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535793968] [2021-05-02 12:31:30,824 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 12:31:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:30,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-02 12:31:30,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:30,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:30,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:30,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:30,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,108 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 12:31:31,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535793968] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:31,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:31,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-05-02 12:31:31,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022641200] [2021-05-02 12:31:31,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-02 12:31:31,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:31,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-02 12:31:31,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-05-02 12:31:31,114 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 11 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 12:31:31,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:31,415 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-05-02 12:31:31,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-02 12:31:31,416 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 11 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 15 [2021-05-02 12:31:31,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:31,417 INFO L225 Difference]: With dead ends: 30 [2021-05-02 12:31:31,417 INFO L226 Difference]: Without dead ends: 28 [2021-05-02 12:31:31,417 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 352.8ms TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2021-05-02 12:31:31,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-05-02 12:31:31,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2021-05-02 12:31:31,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 12:31:31,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2021-05-02 12:31:31,425 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 15 [2021-05-02 12:31:31,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:31,425 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2021-05-02 12:31:31,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 11 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 12:31:31,431 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2021-05-02 12:31:31,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-05-02 12:31:31,431 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:31,431 INFO L523 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:31,653 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-02 12:31:31,653 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:31,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:31,654 INFO L82 PathProgramCache]: Analyzing trace with hash 522918130, now seen corresponding path program 2 times [2021-05-02 12:31:31,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:31,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051738818] [2021-05-02 12:31:31,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:31,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:31,788 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:31:31,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:31,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051738818] [2021-05-02 12:31:31,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051738818] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:31,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802172522] [2021-05-02 12:31:31,789 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 12:31:31,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:31:31,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:31,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-02 12:31:31,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:31,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:31,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:31:31,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802172522] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:31,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:31,936 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-05-02 12:31:31,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33798577] [2021-05-02 12:31:31,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-02 12:31:31,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:31,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-02 12:31:31,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-05-02 12:31:31,938 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 9 states have internal predecessors, (18), 2 states have call successors, (5), 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 12:31:32,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:32,237 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2021-05-02 12:31:32,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-02 12:31:32,238 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 9 states have internal predecessors, (18), 2 states have call successors, (5), 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 16 [2021-05-02 12:31:32,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:32,244 INFO L225 Difference]: With dead ends: 39 [2021-05-02 12:31:32,244 INFO L226 Difference]: Without dead ends: 37 [2021-05-02 12:31:32,244 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 242.8ms TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-05-02 12:31:32,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-05-02 12:31:32,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 28. [2021-05-02 12:31:32,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.2) internal successors, (24), 21 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 12:31:32,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2021-05-02 12:31:32,257 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 16 [2021-05-02 12:31:32,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:32,257 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2021-05-02 12:31:32,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 9 states have internal predecessors, (18), 2 states have call successors, (5), 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 12:31:32,257 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2021-05-02 12:31:32,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-02 12:31:32,258 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:32,258 INFO L523 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:32,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:31:32,472 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:32,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:32,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1206656678, now seen corresponding path program 3 times [2021-05-02 12:31:32,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:32,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98464745] [2021-05-02 12:31:32,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:32,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:32,599 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:31:32,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:32,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98464745] [2021-05-02 12:31:32,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98464745] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:32,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619336792] [2021-05-02 12:31:32,599 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 12:31:32,646 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-05-02 12:31:32,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:32,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 14 conjunts are in the unsatisfiable core [2021-05-02 12:31:32,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:32,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:31:32,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619336792] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:32,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:32,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-05-02 12:31:32,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900996323] [2021-05-02 12:31:32,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-02 12:31:32,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:32,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-02 12:31:32,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-05-02 12:31:32,794 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 11 states have internal predecessors, (20), 2 states have call successors, (5), 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 12:31:33,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:33,142 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2021-05-02 12:31:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-02 12:31:33,145 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 11 states have internal predecessors, (20), 2 states have call successors, (5), 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 12:31:33,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:33,147 INFO L225 Difference]: With dead ends: 42 [2021-05-02 12:31:33,147 INFO L226 Difference]: Without dead ends: 40 [2021-05-02 12:31:33,148 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 288.5ms TimeCoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2021-05-02 12:31:33,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-05-02 12:31:33,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 25. [2021-05-02 12:31:33,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 12:31:33,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-05-02 12:31:33,157 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 17 [2021-05-02 12:31:33,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:33,157 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-05-02 12:31:33,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 11 states have internal predecessors, (20), 2 states have call successors, (5), 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 12:31:33,158 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-05-02 12:31:33,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-02 12:31:33,158 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:33,158 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:33,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:31:33,373 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:33,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:33,374 INFO L82 PathProgramCache]: Analyzing trace with hash 810760849, now seen corresponding path program 1 times [2021-05-02 12:31:33,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:33,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546431869] [2021-05-02 12:31:33,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:33,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:33,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-02 12:31:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:33,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:31:33,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:33,535 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546431869] [2021-05-02 12:31:33,535 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546431869] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:33,535 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893588311] [2021-05-02 12:31:33,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 12:31:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:33,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2021-05-02 12:31:33,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:33,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:33,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:33,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:33,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:33,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:33,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:33,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:33,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:31:33,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893588311] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:33,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:33,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2021-05-02 12:31:33,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504131874] [2021-05-02 12:31:33,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-02 12:31:33,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:33,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-02 12:31:33,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-05-02 12:31:33,708 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 12:31:33,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:33,934 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2021-05-02 12:31:33,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-02 12:31:33,935 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2021-05-02 12:31:33,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:33,936 INFO L225 Difference]: With dead ends: 40 [2021-05-02 12:31:33,936 INFO L226 Difference]: Without dead ends: 26 [2021-05-02 12:31:33,937 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 252.1ms TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2021-05-02 12:31:33,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-05-02 12:31:33,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-05-02 12:31:33,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 12:31:33,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-05-02 12:31:33,942 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 22 [2021-05-02 12:31:33,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:33,942 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-05-02 12:31:33,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 12:31:33,942 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-05-02 12:31:33,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-02 12:31:33,943 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:33,943 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:34,156 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:31:34,157 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:34,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:34,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1252120251, now seen corresponding path program 2 times [2021-05-02 12:31:34,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:34,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865362805] [2021-05-02 12:31:34,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:34,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:34,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-05-02 12:31:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:34,394 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:31:34,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:34,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865362805] [2021-05-02 12:31:34,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865362805] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:34,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319621956] [2021-05-02 12:31:34,394 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 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 12:31:34,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:31:34,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:34,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 21 conjunts are in the unsatisfiable core [2021-05-02 12:31:34,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:34,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:34,671 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:31:34,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319621956] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:34,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:34,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-05-02 12:31:34,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757321840] [2021-05-02 12:31:34,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-02 12:31:34,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:34,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-02 12:31:34,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-05-02 12:31:34,673 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 19 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 17 states have internal predecessors, (30), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 12:31:35,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:35,195 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2021-05-02 12:31:35,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-02 12:31:35,195 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 17 states have internal predecessors, (30), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2021-05-02 12:31:35,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:35,196 INFO L225 Difference]: With dead ends: 47 [2021-05-02 12:31:35,196 INFO L226 Difference]: Without dead ends: 27 [2021-05-02 12:31:35,197 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 623.9ms TimeCoverageRelationStatistics Valid=131, Invalid=861, Unknown=0, NotChecked=0, Total=992 [2021-05-02 12:31:35,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-05-02 12:31:35,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-05-02 12:31:35,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 12:31:35,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-05-02 12:31:35,201 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2021-05-02 12:31:35,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:35,201 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-05-02 12:31:35,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 17 states have internal predecessors, (30), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 12:31:35,201 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-05-02 12:31:35,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-02 12:31:35,202 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:35,202 INFO L523 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:35,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-05-02 12:31:35,417 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:35,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:35,417 INFO L82 PathProgramCache]: Analyzing trace with hash -776924911, now seen corresponding path program 3 times [2021-05-02 12:31:35,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:35,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004024238] [2021-05-02 12:31:35,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:35,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:35,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-02 12:31:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:35,533 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:31:35,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:35,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004024238] [2021-05-02 12:31:35,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004024238] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:35,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768310758] [2021-05-02 12:31:35,534 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 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 12:31:35,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-05-02 12:31:35,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:35,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 20 conjunts are in the unsatisfiable core [2021-05-02 12:31:35,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:35,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 12:31:35,742 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768310758] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:35,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:35,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 16 [2021-05-02 12:31:35,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519722701] [2021-05-02 12:31:35,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-02 12:31:35,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:35,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-02 12:31:35,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-05-02 12:31:35,743 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 16 states, 16 states have (on average 1.75) internal successors, (28), 14 states have internal predecessors, (28), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 12:31:36,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:36,129 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2021-05-02 12:31:36,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-02 12:31:36,129 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.75) internal successors, (28), 14 states have internal predecessors, (28), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2021-05-02 12:31:36,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:36,130 INFO L225 Difference]: With dead ends: 36 [2021-05-02 12:31:36,130 INFO L226 Difference]: Without dead ends: 34 [2021-05-02 12:31:36,131 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 375.9ms TimeCoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2021-05-02 12:31:36,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-05-02 12:31:36,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-05-02 12:31:36,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-02 12:31:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2021-05-02 12:31:36,136 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 24 [2021-05-02 12:31:36,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:36,136 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2021-05-02 12:31:36,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.75) internal successors, (28), 14 states have internal predecessors, (28), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 12:31:36,136 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2021-05-02 12:31:36,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-02 12:31:36,137 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:36,137 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:36,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:31:36,352 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:36,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:36,352 INFO L82 PathProgramCache]: Analyzing trace with hash -889872314, now seen corresponding path program 4 times [2021-05-02 12:31:36,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:36,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232275524] [2021-05-02 12:31:36,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:36,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:36,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-02 12:31:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:36,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-05-02 12:31:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:36,593 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-02 12:31:36,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:36,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232275524] [2021-05-02 12:31:36,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232275524] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:36,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950499163] [2021-05-02 12:31:36,594 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 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 12:31:36,638 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:31:36,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:36,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 25 conjunts are in the unsatisfiable core [2021-05-02 12:31:36,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:36,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:36,887 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-02 12:31:36,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950499163] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:36,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:36,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2021-05-02 12:31:36,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080948191] [2021-05-02 12:31:36,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-02 12:31:36,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:36,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-02 12:31:36,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-05-02 12:31:36,891 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 22 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 20 states have internal predecessors, (35), 6 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-02 12:31:37,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:37,579 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2021-05-02 12:31:37,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-02 12:31:37,579 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 20 states have internal predecessors, (35), 6 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 31 [2021-05-02 12:31:37,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:37,584 INFO L225 Difference]: With dead ends: 66 [2021-05-02 12:31:37,584 INFO L226 Difference]: Without dead ends: 43 [2021-05-02 12:31:37,585 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 767.5ms TimeCoverageRelationStatistics Valid=158, Invalid=1174, Unknown=0, NotChecked=0, Total=1332 [2021-05-02 12:31:37,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-05-02 12:31:37,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2021-05-02 12:31:37,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.08) internal successors, (27), 26 states have internal predecessors, (27), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-02 12:31:37,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2021-05-02 12:31:37,590 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 31 [2021-05-02 12:31:37,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:37,590 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2021-05-02 12:31:37,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 20 states have internal predecessors, (35), 6 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-02 12:31:37,590 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2021-05-02 12:31:37,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-02 12:31:37,591 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:37,591 INFO L523 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:37,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:31:37,809 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:37,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:37,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1543109650, now seen corresponding path program 5 times [2021-05-02 12:31:37,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:37,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851700545] [2021-05-02 12:31:37,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:37,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:37,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-05-02 12:31:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:37,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-05-02 12:31:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:37,923 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-02 12:31:37,923 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:37,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851700545] [2021-05-02 12:31:37,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851700545] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:37,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676671726] [2021-05-02 12:31:37,924 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 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 12:31:37,960 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-05-02 12:31:37,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:37,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 18 conjunts are in the unsatisfiable core [2021-05-02 12:31:37,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:37,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:37,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:37,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:37,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:38,138 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-02 12:31:38,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676671726] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:38,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:38,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 18 [2021-05-02 12:31:38,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060675433] [2021-05-02 12:31:38,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-02 12:31:38,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:38,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-02 12:31:38,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-05-02 12:31:38,142 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 15 states have internal predecessors, (29), 4 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 12:31:38,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:38,485 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2021-05-02 12:31:38,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-02 12:31:38,490 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 15 states have internal predecessors, (29), 4 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2021-05-02 12:31:38,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:38,490 INFO L225 Difference]: With dead ends: 45 [2021-05-02 12:31:38,490 INFO L226 Difference]: Without dead ends: 43 [2021-05-02 12:31:38,492 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 333.2ms TimeCoverageRelationStatistics Valid=110, Invalid=646, Unknown=0, NotChecked=0, Total=756 [2021-05-02 12:31:38,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-05-02 12:31:38,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2021-05-02 12:31:38,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 31 states have internal predecessors, (32), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-02 12:31:38,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2021-05-02 12:31:38,497 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 32 [2021-05-02 12:31:38,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:38,497 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-05-02 12:31:38,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 15 states have internal predecessors, (29), 4 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 12:31:38,498 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2021-05-02 12:31:38,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-02 12:31:38,498 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:38,498 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:38,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-05-02 12:31:38,720 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:38,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:38,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1145077211, now seen corresponding path program 6 times [2021-05-02 12:31:38,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:38,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038810749] [2021-05-02 12:31:38,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:39,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:39,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-05-02 12:31:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:39,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-05-02 12:31:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:39,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-05-02 12:31:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:39,040 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 20 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-02 12:31:39,040 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:39,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038810749] [2021-05-02 12:31:39,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038810749] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:39,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076468150] [2021-05-02 12:31:39,040 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 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 12:31:39,090 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-05-02 12:31:39,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:39,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 28 conjunts are in the unsatisfiable core [2021-05-02 12:31:39,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:39,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:39,542 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 29 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-05-02 12:31:39,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076468150] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:39,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:39,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 29 [2021-05-02 12:31:39,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616270857] [2021-05-02 12:31:39,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-02 12:31:39,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:39,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-02 12:31:39,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2021-05-02 12:31:39,545 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand has 29 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 26 states have internal predecessors, (43), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-02 12:31:40,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:40,457 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2021-05-02 12:31:40,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-02 12:31:40,458 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 26 states have internal predecessors, (43), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 39 [2021-05-02 12:31:40,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:40,458 INFO L225 Difference]: With dead ends: 77 [2021-05-02 12:31:40,458 INFO L226 Difference]: Without dead ends: 51 [2021-05-02 12:31:40,459 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 1080.6ms TimeCoverageRelationStatistics Valid=221, Invalid=1941, Unknown=0, NotChecked=0, Total=2162 [2021-05-02 12:31:40,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-05-02 12:31:40,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2021-05-02 12:31:40,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.064516129032258) internal successors, (33), 32 states have internal predecessors, (33), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-02 12:31:40,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-05-02 12:31:40,465 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 39 [2021-05-02 12:31:40,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:40,466 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-05-02 12:31:40,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 26 states have internal predecessors, (43), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-02 12:31:40,466 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-05-02 12:31:40,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-02 12:31:40,467 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:40,467 INFO L523 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:40,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:31:40,673 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:40,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:40,674 INFO L82 PathProgramCache]: Analyzing trace with hash -2101259791, now seen corresponding path program 7 times [2021-05-02 12:31:40,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:40,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044833351] [2021-05-02 12:31:40,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:40,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:40,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-05-02 12:31:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:40,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-05-02 12:31:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:40,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-02 12:31:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:40,800 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 27 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-02 12:31:40,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:40,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044833351] [2021-05-02 12:31:40,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044833351] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:40,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379178844] [2021-05-02 12:31:40,801 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 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 12:31:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:40,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2021-05-02 12:31:40,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:40,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:40,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:41,076 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-02 12:31:41,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379178844] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:41,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:41,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 21 [2021-05-02 12:31:41,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8782763] [2021-05-02 12:31:41,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-02 12:31:41,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:41,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-02 12:31:41,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2021-05-02 12:31:41,078 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 21 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 18 states have internal predecessors, (33), 5 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-02 12:31:41,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:41,494 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2021-05-02 12:31:41,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-02 12:31:41,495 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 18 states have internal predecessors, (33), 5 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 40 [2021-05-02 12:31:41,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:41,496 INFO L225 Difference]: With dead ends: 53 [2021-05-02 12:31:41,496 INFO L226 Difference]: Without dead ends: 51 [2021-05-02 12:31:41,496 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 423.8ms TimeCoverageRelationStatistics Valid=150, Invalid=906, Unknown=0, NotChecked=0, Total=1056 [2021-05-02 12:31:41,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-05-02 12:31:41,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2021-05-02 12:31:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 37 states have internal predecessors, (38), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 12:31:41,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2021-05-02 12:31:41,503 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 40 [2021-05-02 12:31:41,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:41,503 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2021-05-02 12:31:41,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 18 states have internal predecessors, (33), 5 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-02 12:31:41,504 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2021-05-02 12:31:41,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-02 12:31:41,505 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:41,505 INFO L523 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:41,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:31:41,706 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:41,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:41,706 INFO L82 PathProgramCache]: Analyzing trace with hash -131816602, now seen corresponding path program 8 times [2021-05-02 12:31:41,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:41,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847868822] [2021-05-02 12:31:41,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:42,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:42,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-05-02 12:31:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:42,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-05-02 12:31:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:42,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-02 12:31:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:42,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-05-02 12:31:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:42,078 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 20 proven. 29 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-05-02 12:31:42,078 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:42,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847868822] [2021-05-02 12:31:42,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847868822] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:42,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910459701] [2021-05-02 12:31:42,079 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 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 12:31:42,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:31:42,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:42,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 29 conjunts are in the unsatisfiable core [2021-05-02 12:31:42,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:42,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:42,659 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 51 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-05-02 12:31:42,660 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910459701] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:42,660 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:42,660 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 33 [2021-05-02 12:31:42,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352562312] [2021-05-02 12:31:42,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-02 12:31:42,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:42,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-02 12:31:42,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2021-05-02 12:31:42,661 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 30 states have internal predecessors, (49), 10 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-02 12:31:43,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:43,705 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2021-05-02 12:31:43,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-02 12:31:43,706 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.53125) internal successors, (49), 30 states have internal predecessors, (49), 10 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 47 [2021-05-02 12:31:43,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:43,707 INFO L225 Difference]: With dead ends: 88 [2021-05-02 12:31:43,707 INFO L226 Difference]: Without dead ends: 59 [2021-05-02 12:31:43,708 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 1353.3ms TimeCoverageRelationStatistics Valid=273, Invalid=2589, Unknown=0, NotChecked=0, Total=2862 [2021-05-02 12:31:43,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-05-02 12:31:43,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 51. [2021-05-02 12:31:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 37 states have (on average 1.054054054054054) internal successors, (39), 38 states have internal predecessors, (39), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 12:31:43,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2021-05-02 12:31:43,715 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 47 [2021-05-02 12:31:43,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:43,715 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2021-05-02 12:31:43,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 32 states have (on average 1.53125) internal successors, (49), 30 states have internal predecessors, (49), 10 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-02 12:31:43,715 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2021-05-02 12:31:43,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-02 12:31:43,716 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:43,716 INFO L523 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:43,924 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-05-02 12:31:43,925 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:43,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:43,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1435506894, now seen corresponding path program 9 times [2021-05-02 12:31:43,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:43,925 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431974895] [2021-05-02 12:31:43,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:44,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:44,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-05-02 12:31:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:44,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-05-02 12:31:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:44,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-05-02 12:31:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:44,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-02 12:31:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 14 proven. 41 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-05-02 12:31:44,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:44,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431974895] [2021-05-02 12:31:44,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431974895] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:44,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973579411] [2021-05-02 12:31:44,109 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 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 12:31:44,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-05-02 12:31:44,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:44,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 24 conjunts are in the unsatisfiable core [2021-05-02 12:31:44,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:44,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:44,425 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 8 proven. 47 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-05-02 12:31:44,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973579411] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:44,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:44,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 24 [2021-05-02 12:31:44,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806793755] [2021-05-02 12:31:44,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-02 12:31:44,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:44,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-02 12:31:44,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2021-05-02 12:31:44,427 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand has 24 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 21 states have internal predecessors, (37), 6 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-02 12:31:44,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:44,936 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2021-05-02 12:31:44,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-02 12:31:44,936 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 21 states have internal predecessors, (37), 6 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 48 [2021-05-02 12:31:44,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:44,937 INFO L225 Difference]: With dead ends: 61 [2021-05-02 12:31:44,937 INFO L226 Difference]: Without dead ends: 59 [2021-05-02 12:31:44,938 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 561.8ms TimeCoverageRelationStatistics Valid=199, Invalid=1207, Unknown=0, NotChecked=0, Total=1406 [2021-05-02 12:31:44,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-05-02 12:31:44,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2021-05-02 12:31:44,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 43 states have internal predecessors, (44), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-02 12:31:44,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2021-05-02 12:31:44,945 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 48 [2021-05-02 12:31:44,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:44,945 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2021-05-02 12:31:44,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 21 states have internal predecessors, (37), 6 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-02 12:31:44,945 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2021-05-02 12:31:44,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-02 12:31:44,946 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:44,946 INFO L523 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:45,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-05-02 12:31:45,161 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:45,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:45,161 INFO L82 PathProgramCache]: Analyzing trace with hash -536816891, now seen corresponding path program 10 times [2021-05-02 12:31:45,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:45,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272064821] [2021-05-02 12:31:45,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:45,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:45,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-05-02 12:31:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:45,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-05-02 12:31:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:45,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-05-02 12:31:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:45,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-02 12:31:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:45,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-05-02 12:31:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 32 proven. 39 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-05-02 12:31:45,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:45,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272064821] [2021-05-02 12:31:45,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272064821] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:45,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206228412] [2021-05-02 12:31:45,599 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 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 12:31:45,657 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:31:45,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:45,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 37 conjunts are in the unsatisfiable core [2021-05-02 12:31:45,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:45,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:45,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:46,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:46,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:46,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:46,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:46,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:46,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:46,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:46,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:46,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:46,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:46,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 9 proven. 74 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-05-02 12:31:46,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206228412] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:46,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:46,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 31 [2021-05-02 12:31:46,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012470326] [2021-05-02 12:31:46,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-02 12:31:46,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:46,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-02 12:31:46,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2021-05-02 12:31:46,135 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand has 31 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 29 states have internal predecessors, (50), 12 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-02 12:31:47,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:47,120 INFO L93 Difference]: Finished difference Result 111 states and 116 transitions. [2021-05-02 12:31:47,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-02 12:31:47,121 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 29 states have internal predecessors, (50), 12 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 55 [2021-05-02 12:31:47,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:47,122 INFO L225 Difference]: With dead ends: 111 [2021-05-02 12:31:47,122 INFO L226 Difference]: Without dead ends: 67 [2021-05-02 12:31:47,123 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 1153.7ms TimeCoverageRelationStatistics Valid=257, Invalid=2395, Unknown=0, NotChecked=0, Total=2652 [2021-05-02 12:31:47,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-05-02 12:31:47,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2021-05-02 12:31:47,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 44 states have internal predecessors, (45), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-02 12:31:47,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2021-05-02 12:31:47,132 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 55 [2021-05-02 12:31:47,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:47,132 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2021-05-02 12:31:47,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 29 states have internal predecessors, (50), 12 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-02 12:31:47,133 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2021-05-02 12:31:47,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-02 12:31:47,133 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:47,133 INFO L523 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:47,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-05-02 12:31:47,349 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:47,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:47,349 INFO L82 PathProgramCache]: Analyzing trace with hash 652315345, now seen corresponding path program 11 times [2021-05-02 12:31:47,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:47,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512875577] [2021-05-02 12:31:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:47,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:47,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-05-02 12:31:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:47,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-05-02 12:31:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:47,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-02 12:31:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:47,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-05-02 12:31:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:47,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-02 12:31:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 20 proven. 58 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-05-02 12:31:47,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:47,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512875577] [2021-05-02 12:31:47,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512875577] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:47,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951827579] [2021-05-02 12:31:47,538 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 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 12:31:47,603 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-02 12:31:47,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:47,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 27 conjunts are in the unsatisfiable core [2021-05-02 12:31:47,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:47,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 10 proven. 68 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-05-02 12:31:47,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951827579] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:47,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:47,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 27 [2021-05-02 12:31:47,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551785668] [2021-05-02 12:31:47,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-02 12:31:47,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:47,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-02 12:31:47,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2021-05-02 12:31:47,907 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand has 27 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 24 states have internal predecessors, (41), 7 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 12:31:48,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:48,531 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2021-05-02 12:31:48,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-02 12:31:48,532 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 24 states have internal predecessors, (41), 7 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 56 [2021-05-02 12:31:48,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:48,532 INFO L225 Difference]: With dead ends: 69 [2021-05-02 12:31:48,533 INFO L226 Difference]: Without dead ends: 67 [2021-05-02 12:31:48,533 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 661.3ms TimeCoverageRelationStatistics Valid=257, Invalid=1549, Unknown=0, NotChecked=0, Total=1806 [2021-05-02 12:31:48,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-05-02 12:31:48,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2021-05-02 12:31:48,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 49 states have internal predecessors, (50), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-02 12:31:48,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2021-05-02 12:31:48,542 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 56 [2021-05-02 12:31:48,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:48,542 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2021-05-02 12:31:48,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 24 states have internal predecessors, (41), 7 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 12:31:48,542 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2021-05-02 12:31:48,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-02 12:31:48,543 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:48,543 INFO L523 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:48,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:31:48,745 INFO L428 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:48,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:48,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1763922298, now seen corresponding path program 12 times [2021-05-02 12:31:48,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:48,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563052234] [2021-05-02 12:31:48,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:49,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:49,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-05-02 12:31:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:49,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-05-02 12:31:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:49,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-02 12:31:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:49,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-05-02 12:31:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:49,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-02 12:31:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:49,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-05-02 12:31:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 47 proven. 50 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-05-02 12:31:49,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:49,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563052234] [2021-05-02 12:31:49,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563052234] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:49,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302628155] [2021-05-02 12:31:49,180 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 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 12:31:49,249 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-02 12:31:49,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:49,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 37 conjunts are in the unsatisfiable core [2021-05-02 12:31:49,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:49,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:49,990 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 11 proven. 101 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-05-02 12:31:49,990 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302628155] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:49,990 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:49,990 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 41 [2021-05-02 12:31:49,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837454258] [2021-05-02 12:31:49,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-05-02 12:31:49,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:49,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-05-02 12:31:49,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1489, Unknown=0, NotChecked=0, Total=1640 [2021-05-02 12:31:49,991 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand has 41 states, 40 states have (on average 1.525) internal successors, (61), 38 states have internal predecessors, (61), 14 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-02 12:31:51,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:51,595 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2021-05-02 12:31:51,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-02 12:31:51,595 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 1.525) internal successors, (61), 38 states have internal predecessors, (61), 14 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 63 [2021-05-02 12:31:51,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:51,596 INFO L225 Difference]: With dead ends: 110 [2021-05-02 12:31:51,596 INFO L226 Difference]: Without dead ends: 75 [2021-05-02 12:31:51,598 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 969 ImplicationChecksByTransitivity, 1938.0ms TimeCoverageRelationStatistics Valid=393, Invalid=4163, Unknown=0, NotChecked=0, Total=4556 [2021-05-02 12:31:51,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-05-02 12:31:51,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 67. [2021-05-02 12:31:51,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 49 states have (on average 1.0408163265306123) internal successors, (51), 50 states have internal predecessors, (51), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-02 12:31:51,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2021-05-02 12:31:51,605 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 63 [2021-05-02 12:31:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:51,605 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2021-05-02 12:31:51,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 41 states, 40 states have (on average 1.525) internal successors, (61), 38 states have internal predecessors, (61), 14 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-02 12:31:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2021-05-02 12:31:51,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-05-02 12:31:51,606 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:51,606 INFO L523 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:51,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-05-02 12:31:51,813 INFO L428 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:51,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:51,813 INFO L82 PathProgramCache]: Analyzing trace with hash 262068818, now seen corresponding path program 13 times [2021-05-02 12:31:51,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:51,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348021642] [2021-05-02 12:31:51,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:51,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:52,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-05-02 12:31:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:52,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-02 12:31:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:52,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-05-02 12:31:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:52,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-05-02 12:31:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:52,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-05-02 12:31:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:52,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-02 12:31:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 27 proven. 78 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-05-02 12:31:52,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:52,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348021642] [2021-05-02 12:31:52,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348021642] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:52,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013737012] [2021-05-02 12:31:52,030 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 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 12:31:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:52,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 30 conjunts are in the unsatisfiable core [2021-05-02 12:31:52,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:52,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:52,487 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 12 proven. 93 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-05-02 12:31:52,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013737012] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:52,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:52,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 30 [2021-05-02 12:31:52,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556115868] [2021-05-02 12:31:52,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-02 12:31:52,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:52,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-02 12:31:52,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2021-05-02 12:31:52,489 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand has 30 states, 30 states have (on average 1.5) internal successors, (45), 27 states have internal predecessors, (45), 8 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-02 12:31:53,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:53,127 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2021-05-02 12:31:53,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-02 12:31:53,128 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.5) internal successors, (45), 27 states have internal predecessors, (45), 8 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 64 [2021-05-02 12:31:53,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:53,129 INFO L225 Difference]: With dead ends: 77 [2021-05-02 12:31:53,129 INFO L226 Difference]: Without dead ends: 75 [2021-05-02 12:31:53,130 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 773.7ms TimeCoverageRelationStatistics Valid=324, Invalid=1932, Unknown=0, NotChecked=0, Total=2256 [2021-05-02 12:31:53,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-05-02 12:31:53,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2021-05-02 12:31:53,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 54 states have (on average 1.037037037037037) internal successors, (56), 55 states have internal predecessors, (56), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-02 12:31:53,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2021-05-02 12:31:53,136 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 64 [2021-05-02 12:31:53,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:53,136 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2021-05-02 12:31:53,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 1.5) internal successors, (45), 27 states have internal predecessors, (45), 8 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-02 12:31:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2021-05-02 12:31:53,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-05-02 12:31:53,137 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:53,137 INFO L523 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:53,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-05-02 12:31:53,348 INFO L428 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:53,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:53,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1529865243, now seen corresponding path program 14 times [2021-05-02 12:31:53,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:53,348 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202364466] [2021-05-02 12:31:53,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:53,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:53,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-05-02 12:31:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:53,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-02 12:31:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:53,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-05-02 12:31:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:53,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-05-02 12:31:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:53,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-05-02 12:31:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:53,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-02 12:31:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:53,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-05-02 12:31:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:53,906 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 65 proven. 62 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-05-02 12:31:53,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:53,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202364466] [2021-05-02 12:31:53,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202364466] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:53,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21740444] [2021-05-02 12:31:53,906 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 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 12:31:53,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:31:53,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:53,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 38 conjunts are in the unsatisfiable core [2021-05-02 12:31:53,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:54,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:54,796 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 13 proven. 132 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-05-02 12:31:54,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21740444] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:54,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:54,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 25] total 45 [2021-05-02 12:31:54,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673032563] [2021-05-02 12:31:54,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-05-02 12:31:54,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:54,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-05-02 12:31:54,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1801, Unknown=0, NotChecked=0, Total=1980 [2021-05-02 12:31:54,798 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand has 45 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 42 states have internal predecessors, (67), 16 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-05-02 12:31:56,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:56,647 INFO L93 Difference]: Finished difference Result 121 states and 131 transitions. [2021-05-02 12:31:56,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-02 12:31:56,647 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 42 states have internal predecessors, (67), 16 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 71 [2021-05-02 12:31:56,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:56,648 INFO L225 Difference]: With dead ends: 121 [2021-05-02 12:31:56,648 INFO L226 Difference]: Without dead ends: 83 [2021-05-02 12:31:56,650 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1190 ImplicationChecksByTransitivity, 2213.5ms TimeCoverageRelationStatistics Valid=462, Invalid=5088, Unknown=0, NotChecked=0, Total=5550 [2021-05-02 12:31:56,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-05-02 12:31:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2021-05-02 12:31:56,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 55 states have (on average 1.0363636363636364) internal successors, (57), 56 states have internal predecessors, (57), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-02 12:31:56,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2021-05-02 12:31:56,657 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 71 [2021-05-02 12:31:56,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:56,657 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2021-05-02 12:31:56,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 45 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 42 states have internal predecessors, (67), 16 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-05-02 12:31:56,657 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2021-05-02 12:31:56,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-05-02 12:31:56,660 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:56,660 INFO L523 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:56,873 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-05-02 12:31:56,873 INFO L428 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:56,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:56,873 INFO L82 PathProgramCache]: Analyzing trace with hash -524305487, now seen corresponding path program 15 times [2021-05-02 12:31:56,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:56,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554644383] [2021-05-02 12:31:56,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:57,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:57,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-02 12:31:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:57,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-05-02 12:31:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:57,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-05-02 12:31:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:57,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-05-02 12:31:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:57,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-05-02 12:31:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:57,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-05-02 12:31:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:57,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-02 12:31:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:57,099 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 35 proven. 101 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-05-02 12:31:57,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:57,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554644383] [2021-05-02 12:31:57,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554644383] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:57,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790724896] [2021-05-02 12:31:57,100 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 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 12:31:57,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-05-02 12:31:57,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:57,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 33 conjunts are in the unsatisfiable core [2021-05-02 12:31:57,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:57,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 14 proven. 122 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-05-02 12:31:57,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790724896] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:57,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:57,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 33 [2021-05-02 12:31:57,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45101229] [2021-05-02 12:31:57,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-02 12:31:57,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:31:57,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-02 12:31:57,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=912, Unknown=0, NotChecked=0, Total=1056 [2021-05-02 12:31:57,556 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand has 33 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 30 states have internal predecessors, (49), 9 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-02 12:31:58,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:31:58,355 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2021-05-02 12:31:58,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-02 12:31:58,355 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 30 states have internal predecessors, (49), 9 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 72 [2021-05-02 12:31:58,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:31:58,356 INFO L225 Difference]: With dead ends: 85 [2021-05-02 12:31:58,356 INFO L226 Difference]: Without dead ends: 83 [2021-05-02 12:31:58,357 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 878.7ms TimeCoverageRelationStatistics Valid=400, Invalid=2356, Unknown=0, NotChecked=0, Total=2756 [2021-05-02 12:31:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-05-02 12:31:58,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2021-05-02 12:31:58,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 61 states have internal predecessors, (62), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2021-05-02 12:31:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 83 transitions. [2021-05-02 12:31:58,362 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 83 transitions. Word has length 72 [2021-05-02 12:31:58,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:31:58,362 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 83 transitions. [2021-05-02 12:31:58,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 30 states have internal predecessors, (49), 9 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-02 12:31:58,363 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 83 transitions. [2021-05-02 12:31:58,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-05-02 12:31:58,363 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:31:58,363 INFO L523 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:31:58,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:31:58,564 INFO L428 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:31:58,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:31:58,564 INFO L82 PathProgramCache]: Analyzing trace with hash -995114586, now seen corresponding path program 16 times [2021-05-02 12:31:58,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:31:58,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268574180] [2021-05-02 12:31:58,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:31:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:59,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:31:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:59,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-02 12:31:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:59,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-05-02 12:31:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:59,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-05-02 12:31:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:59,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-05-02 12:31:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:59,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-05-02 12:31:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:59,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-05-02 12:31:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:59,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-02 12:31:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:59,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-05-02 12:31:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:31:59,250 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 86 proven. 75 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-05-02 12:31:59,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:31:59,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268574180] [2021-05-02 12:31:59,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268574180] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:59,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536796245] [2021-05-02 12:31:59,251 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 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 12:31:59,316 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:31:59,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:31:59,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 49 conjunts are in the unsatisfiable core [2021-05-02 12:31:59,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:31:59,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:31:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 15 proven. 167 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-05-02 12:31:59,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536796245] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:31:59,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:31:59,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 40 [2021-05-02 12:31:59,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657536926] [2021-05-02 12:31:59,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-02 12:31:59,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:00,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-02 12:32:00,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1401, Unknown=0, NotChecked=0, Total=1560 [2021-05-02 12:32:00,001 INFO L87 Difference]: Start difference. First operand 82 states and 83 transitions. Second operand has 40 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 38 states have internal predecessors, (65), 18 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-02 12:32:01,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:01,293 INFO L93 Difference]: Finished difference Result 156 states and 161 transitions. [2021-05-02 12:32:01,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-02 12:32:01,293 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 38 states have internal predecessors, (65), 18 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 79 [2021-05-02 12:32:01,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:01,294 INFO L225 Difference]: With dead ends: 156 [2021-05-02 12:32:01,294 INFO L226 Difference]: Without dead ends: 91 [2021-05-02 12:32:01,295 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1014 ImplicationChecksByTransitivity, 1816.5ms TimeCoverageRelationStatistics Valid=383, Invalid=4039, Unknown=0, NotChecked=0, Total=4422 [2021-05-02 12:32:01,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-05-02 12:32:01,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 83. [2021-05-02 12:32:01,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 61 states have (on average 1.0327868852459017) internal successors, (63), 62 states have internal predecessors, (63), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2021-05-02 12:32:01,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2021-05-02 12:32:01,302 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 79 [2021-05-02 12:32:01,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:01,302 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2021-05-02 12:32:01,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 38 states have internal predecessors, (65), 18 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-02 12:32:01,302 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2021-05-02 12:32:01,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-05-02 12:32:01,302 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:01,303 INFO L523 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:01,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:32:01,503 INFO L428 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:01,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:01,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1226364274, now seen corresponding path program 17 times [2021-05-02 12:32:01,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:01,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768183803] [2021-05-02 12:32:01,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:01,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:01,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-05-02 12:32:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:01,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-05-02 12:32:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:01,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-05-02 12:32:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:01,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-05-02 12:32:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:01,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-05-02 12:32:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:01,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-02 12:32:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:01,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-05-02 12:32:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:01,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-02 12:32:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:01,807 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 44 proven. 127 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-05-02 12:32:01,807 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:01,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768183803] [2021-05-02 12:32:01,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768183803] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:01,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681801209] [2021-05-02 12:32:01,807 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 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 12:32:01,871 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-05-02 12:32:01,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:32:01,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 36 conjunts are in the unsatisfiable core [2021-05-02 12:32:01,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:01,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:01,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:02,350 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 16 proven. 155 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-05-02 12:32:02,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681801209] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:02,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:02,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 36 [2021-05-02 12:32:02,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327083615] [2021-05-02 12:32:02,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-02 12:32:02,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:02,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-02 12:32:02,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1087, Unknown=0, NotChecked=0, Total=1260 [2021-05-02 12:32:02,354 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand has 36 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 33 states have internal predecessors, (53), 10 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-02 12:32:03,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:03,249 INFO L93 Difference]: Finished difference Result 93 states and 94 transitions. [2021-05-02 12:32:03,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-02 12:32:03,249 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 33 states have internal predecessors, (53), 10 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 80 [2021-05-02 12:32:03,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:03,250 INFO L225 Difference]: With dead ends: 93 [2021-05-02 12:32:03,251 INFO L226 Difference]: Without dead ends: 91 [2021-05-02 12:32:03,251 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 1021.2ms TimeCoverageRelationStatistics Valid=485, Invalid=2821, Unknown=0, NotChecked=0, Total=3306 [2021-05-02 12:32:03,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-05-02 12:32:03,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2021-05-02 12:32:03,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 66 states have (on average 1.0303030303030303) internal successors, (68), 67 states have internal predecessors, (68), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-02 12:32:03,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2021-05-02 12:32:03,258 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 80 [2021-05-02 12:32:03,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:03,259 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2021-05-02 12:32:03,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 33 states have internal predecessors, (53), 10 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-02 12:32:03,259 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2021-05-02 12:32:03,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-05-02 12:32:03,260 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:03,260 INFO L523 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:03,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-05-02 12:32:03,465 INFO L428 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:03,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:03,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1146838213, now seen corresponding path program 18 times [2021-05-02 12:32:03,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:03,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277563794] [2021-05-02 12:32:03,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:04,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:04,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-05-02 12:32:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:04,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-05-02 12:32:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:04,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-05-02 12:32:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:04,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-05-02 12:32:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:04,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-05-02 12:32:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:04,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-02 12:32:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:04,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-05-02 12:32:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:04,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-02 12:32:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:04,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-05-02 12:32:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:04,171 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 110 proven. 89 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-05-02 12:32:04,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:04,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277563794] [2021-05-02 12:32:04,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277563794] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:04,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960531569] [2021-05-02 12:32:04,172 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 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 12:32:04,252 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-05-02 12:32:04,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:32:04,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 46 conjunts are in the unsatisfiable core [2021-05-02 12:32:04,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:04,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:04,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 32 proven. 191 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-05-02 12:32:05,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960531569] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:05,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:05,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 29] total 53 [2021-05-02 12:32:05,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878383354] [2021-05-02 12:32:05,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-05-02 12:32:05,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:05,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-05-02 12:32:05,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=2509, Unknown=0, NotChecked=0, Total=2756 [2021-05-02 12:32:05,399 INFO L87 Difference]: Start difference. First operand 90 states and 91 transitions. Second operand has 53 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 50 states have internal predecessors, (79), 20 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-05-02 12:32:07,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:07,536 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2021-05-02 12:32:07,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-02 12:32:07,538 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 50 states have internal predecessors, (79), 20 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Word has length 87 [2021-05-02 12:32:07,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:07,539 INFO L225 Difference]: With dead ends: 143 [2021-05-02 12:32:07,539 INFO L226 Difference]: Without dead ends: 99 [2021-05-02 12:32:07,541 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1686 ImplicationChecksByTransitivity, 2817.5ms TimeCoverageRelationStatistics Valid=621, Invalid=7211, Unknown=0, NotChecked=0, Total=7832 [2021-05-02 12:32:07,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-05-02 12:32:07,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2021-05-02 12:32:07,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 67 states have (on average 1.0298507462686568) internal successors, (69), 68 states have internal predecessors, (69), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-02 12:32:07,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 92 transitions. [2021-05-02 12:32:07,549 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 92 transitions. Word has length 87 [2021-05-02 12:32:07,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:07,549 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 92 transitions. [2021-05-02 12:32:07,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 53 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 50 states have internal predecessors, (79), 20 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-05-02 12:32:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 92 transitions. [2021-05-02 12:32:07,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-05-02 12:32:07,550 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:07,550 INFO L523 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:07,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-05-02 12:32:07,771 INFO L428 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:07,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:07,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1970674543, now seen corresponding path program 19 times [2021-05-02 12:32:07,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:07,772 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907270531] [2021-05-02 12:32:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:08,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:08,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-05-02 12:32:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:08,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-05-02 12:32:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:08,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-05-02 12:32:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:08,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-05-02 12:32:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:08,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-02 12:32:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:08,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-05-02 12:32:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:08,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-05-02 12:32:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:08,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-05-02 12:32:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:08,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-02 12:32:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:08,077 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 54 proven. 156 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-05-02 12:32:08,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:08,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907270531] [2021-05-02 12:32:08,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907270531] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:08,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076935821] [2021-05-02 12:32:08,078 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 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 12:32:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:08,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 39 conjunts are in the unsatisfiable core [2021-05-02 12:32:08,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:08,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:08,647 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 18 proven. 192 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-05-02 12:32:08,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076935821] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:08,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:08,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25] total 39 [2021-05-02 12:32:08,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989831803] [2021-05-02 12:32:08,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-05-02 12:32:08,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:08,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-05-02 12:32:08,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1277, Unknown=0, NotChecked=0, Total=1482 [2021-05-02 12:32:08,651 INFO L87 Difference]: Start difference. First operand 91 states and 92 transitions. Second operand has 39 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 36 states have internal predecessors, (57), 11 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-05-02 12:32:09,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:09,725 INFO L93 Difference]: Finished difference Result 101 states and 102 transitions. [2021-05-02 12:32:09,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-02 12:32:09,725 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 36 states have internal predecessors, (57), 11 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 88 [2021-05-02 12:32:09,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:09,728 INFO L225 Difference]: With dead ends: 101 [2021-05-02 12:32:09,728 INFO L226 Difference]: Without dead ends: 99 [2021-05-02 12:32:09,729 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 927 ImplicationChecksByTransitivity, 1207.5ms TimeCoverageRelationStatistics Valid=579, Invalid=3327, Unknown=0, NotChecked=0, Total=3906 [2021-05-02 12:32:09,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-05-02 12:32:09,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2021-05-02 12:32:09,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 73 states have internal predecessors, (74), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-02 12:32:09,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2021-05-02 12:32:09,736 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 88 [2021-05-02 12:32:09,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:09,736 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2021-05-02 12:32:09,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 36 states have internal predecessors, (57), 11 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-05-02 12:32:09,736 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2021-05-02 12:32:09,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-05-02 12:32:09,737 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:09,737 INFO L523 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:09,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:32:09,938 INFO L428 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:09,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:09,938 INFO L82 PathProgramCache]: Analyzing trace with hash 2008014022, now seen corresponding path program 20 times [2021-05-02 12:32:09,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:09,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771894872] [2021-05-02 12:32:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:10,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:10,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-05-02 12:32:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:10,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-05-02 12:32:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:10,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-05-02 12:32:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:10,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-05-02 12:32:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:10,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-02 12:32:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:10,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-05-02 12:32:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:10,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-05-02 12:32:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:10,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-05-02 12:32:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:10,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-02 12:32:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:10,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-05-02 12:32:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:10,836 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 137 proven. 104 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-05-02 12:32:10,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:10,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771894872] [2021-05-02 12:32:10,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771894872] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:10,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186367204] [2021-05-02 12:32:10,837 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 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 12:32:10,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:32:10,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:32:10,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 47 conjunts are in the unsatisfiable core [2021-05-02 12:32:10,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:10,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:10,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:10,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:10,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:10,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:10,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:10,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:10,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:11,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:12,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:12,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:12,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:12,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:12,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:12,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:12,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:12,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:12,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:12,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:12,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:12,199 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 19 proven. 249 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-05-02 12:32:12,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186367204] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:12,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:12,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 31] total 57 [2021-05-02 12:32:12,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799656282] [2021-05-02 12:32:12,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-05-02 12:32:12,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:12,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-05-02 12:32:12,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=2911, Unknown=0, NotChecked=0, Total=3192 [2021-05-02 12:32:12,200 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand has 57 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 54 states have internal predecessors, (85), 22 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-05-02 12:32:14,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:14,778 INFO L93 Difference]: Finished difference Result 154 states and 167 transitions. [2021-05-02 12:32:14,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-05-02 12:32:14,778 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 54 states have internal predecessors, (85), 22 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 95 [2021-05-02 12:32:14,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:14,779 INFO L225 Difference]: With dead ends: 154 [2021-05-02 12:32:14,779 INFO L226 Difference]: Without dead ends: 107 [2021-05-02 12:32:14,780 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1985 ImplicationChecksByTransitivity, 3456.1ms TimeCoverageRelationStatistics Valid=705, Invalid=8415, Unknown=0, NotChecked=0, Total=9120 [2021-05-02 12:32:14,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-05-02 12:32:14,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 99. [2021-05-02 12:32:14,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 73 states have (on average 1.0273972602739727) internal successors, (75), 74 states have internal predecessors, (75), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-02 12:32:14,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 100 transitions. [2021-05-02 12:32:14,789 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 100 transitions. Word has length 95 [2021-05-02 12:32:14,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:14,790 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 100 transitions. [2021-05-02 12:32:14,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 57 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 54 states have internal predecessors, (85), 22 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-05-02 12:32:14,790 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 100 transitions. [2021-05-02 12:32:14,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-05-02 12:32:14,790 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:14,791 INFO L523 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:14,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-05-02 12:32:14,993 INFO L428 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:14,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:14,993 INFO L82 PathProgramCache]: Analyzing trace with hash -319825774, now seen corresponding path program 21 times [2021-05-02 12:32:14,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:14,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430859519] [2021-05-02 12:32:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:15,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:15,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-05-02 12:32:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:15,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-02 12:32:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:15,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-05-02 12:32:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:15,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-02 12:32:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:15,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-05-02 12:32:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:15,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-05-02 12:32:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:15,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-05-02 12:32:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:15,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-05-02 12:32:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:15,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-05-02 12:32:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:15,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-02 12:32:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:15,351 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 65 proven. 188 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-05-02 12:32:15,351 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:15,351 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430859519] [2021-05-02 12:32:15,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430859519] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:15,351 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114059113] [2021-05-02 12:32:15,351 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 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 12:32:15,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-05-02 12:32:15,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:32:15,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 44 conjunts are in the unsatisfiable core [2021-05-02 12:32:15,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:15,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:15,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:16,014 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 20 proven. 233 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-05-02 12:32:16,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114059113] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:16,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:16,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 42 [2021-05-02 12:32:16,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325512461] [2021-05-02 12:32:16,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-05-02 12:32:16,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:16,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-05-02 12:32:16,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1482, Unknown=0, NotChecked=0, Total=1722 [2021-05-02 12:32:16,015 INFO L87 Difference]: Start difference. First operand 99 states and 100 transitions. Second operand has 42 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 39 states have internal predecessors, (61), 12 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-02 12:32:17,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:17,144 INFO L93 Difference]: Finished difference Result 109 states and 110 transitions. [2021-05-02 12:32:17,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-02 12:32:17,145 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 39 states have internal predecessors, (61), 12 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 96 [2021-05-02 12:32:17,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:17,146 INFO L225 Difference]: With dead ends: 109 [2021-05-02 12:32:17,146 INFO L226 Difference]: Without dead ends: 107 [2021-05-02 12:32:17,146 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1093 ImplicationChecksByTransitivity, 1327.4ms TimeCoverageRelationStatistics Valid=682, Invalid=3874, Unknown=0, NotChecked=0, Total=4556 [2021-05-02 12:32:17,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-05-02 12:32:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2021-05-02 12:32:17,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.0256410256410255) internal successors, (80), 79 states have internal predecessors, (80), 14 states have call successors, (14), 14 states have call predecessors, (14), 13 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-02 12:32:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 107 transitions. [2021-05-02 12:32:17,155 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 107 transitions. Word has length 96 [2021-05-02 12:32:17,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:17,155 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 107 transitions. [2021-05-02 12:32:17,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 39 states have internal predecessors, (61), 12 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-02 12:32:17,155 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 107 transitions. [2021-05-02 12:32:17,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-05-02 12:32:17,156 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:17,156 INFO L523 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:17,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:32:17,361 INFO L428 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:17,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:17,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1873767003, now seen corresponding path program 22 times [2021-05-02 12:32:17,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:17,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488127957] [2021-05-02 12:32:17,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-05-02 12:32:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-02 12:32:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-05-02 12:32:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-02 12:32:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-05-02 12:32:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-05-02 12:32:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-05-02 12:32:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-05-02 12:32:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-05-02 12:32:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-02 12:32:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-05-02 12:32:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:18,264 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 167 proven. 120 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-05-02 12:32:18,264 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:18,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488127957] [2021-05-02 12:32:18,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488127957] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:18,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653214196] [2021-05-02 12:32:18,265 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 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 12:32:18,342 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:32:18,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:32:18,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 61 conjunts are in the unsatisfiable core [2021-05-02 12:32:18,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:18,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:18,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:19,279 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 21 proven. 296 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-05-02 12:32:19,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653214196] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:19,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:19,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 49 [2021-05-02 12:32:19,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712922134] [2021-05-02 12:32:19,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-05-02 12:32:19,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:19,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-05-02 12:32:19,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=2115, Unknown=0, NotChecked=0, Total=2352 [2021-05-02 12:32:19,281 INFO L87 Difference]: Start difference. First operand 106 states and 107 transitions. Second operand has 49 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 47 states have internal predecessors, (80), 24 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-02 12:32:21,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:21,179 INFO L93 Difference]: Finished difference Result 201 states and 206 transitions. [2021-05-02 12:32:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-02 12:32:21,179 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 47 states have internal predecessors, (80), 24 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 103 [2021-05-02 12:32:21,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:21,180 INFO L225 Difference]: With dead ends: 201 [2021-05-02 12:32:21,180 INFO L226 Difference]: Without dead ends: 115 [2021-05-02 12:32:21,181 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 109 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1530 ImplicationChecksByTransitivity, 2507.0ms TimeCoverageRelationStatistics Valid=536, Invalid=6106, Unknown=0, NotChecked=0, Total=6642 [2021-05-02 12:32:21,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-05-02 12:32:21,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 107. [2021-05-02 12:32:21,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 79 states have (on average 1.0253164556962024) internal successors, (81), 80 states have internal predecessors, (81), 14 states have call successors, (14), 14 states have call predecessors, (14), 13 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-02 12:32:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 108 transitions. [2021-05-02 12:32:21,190 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 108 transitions. Word has length 103 [2021-05-02 12:32:21,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:21,190 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 108 transitions. [2021-05-02 12:32:21,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 49 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 47 states have internal predecessors, (80), 24 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-02 12:32:21,190 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 108 transitions. [2021-05-02 12:32:21,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-05-02 12:32:21,191 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:21,191 INFO L523 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:21,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-05-02 12:32:21,392 INFO L428 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:21,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:21,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1779563151, now seen corresponding path program 23 times [2021-05-02 12:32:21,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:21,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315977980] [2021-05-02 12:32:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-05-02 12:32:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-05-02 12:32:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-02 12:32:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-05-02 12:32:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-05-02 12:32:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-05-02 12:32:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-05-02 12:32:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-05-02 12:32:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-02 12:32:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-05-02 12:32:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-02 12:32:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:21,801 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 77 proven. 223 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-05-02 12:32:21,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:21,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315977980] [2021-05-02 12:32:21,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315977980] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:21,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010471914] [2021-05-02 12:32:21,802 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 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 12:32:21,892 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-05-02 12:32:21,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:32:21,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 45 conjunts are in the unsatisfiable core [2021-05-02 12:32:21,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:21,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:21,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:21,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:21,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:21,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:21,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:21,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:21,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:21,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:21,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:21,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:21,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:22,596 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 22 proven. 278 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-05-02 12:32:22,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010471914] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:22,597 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:22,597 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29] total 45 [2021-05-02 12:32:22,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316221722] [2021-05-02 12:32:22,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-05-02 12:32:22,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:22,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-05-02 12:32:22,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=1702, Unknown=0, NotChecked=0, Total=1980 [2021-05-02 12:32:22,598 INFO L87 Difference]: Start difference. First operand 107 states and 108 transitions. Second operand has 45 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 42 states have internal predecessors, (65), 13 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-02 12:32:23,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:23,842 INFO L93 Difference]: Finished difference Result 117 states and 118 transitions. [2021-05-02 12:32:23,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-02 12:32:23,843 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 42 states have internal predecessors, (65), 13 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 104 [2021-05-02 12:32:23,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:23,843 INFO L225 Difference]: With dead ends: 117 [2021-05-02 12:32:23,843 INFO L226 Difference]: Without dead ends: 115 [2021-05-02 12:32:23,844 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 1558.1ms TimeCoverageRelationStatistics Valid=794, Invalid=4462, Unknown=0, NotChecked=0, Total=5256 [2021-05-02 12:32:23,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-05-02 12:32:23,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2021-05-02 12:32:23,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 84 states have (on average 1.0238095238095237) internal successors, (86), 85 states have internal predecessors, (86), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2021-05-02 12:32:23,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 115 transitions. [2021-05-02 12:32:23,852 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 115 transitions. Word has length 104 [2021-05-02 12:32:23,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:23,852 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 115 transitions. [2021-05-02 12:32:23,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 42 states have internal predecessors, (65), 13 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-02 12:32:23,852 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 115 transitions. [2021-05-02 12:32:23,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-05-02 12:32:23,853 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:23,853 INFO L523 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:24,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-05-02 12:32:24,058 INFO L428 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:24,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:24,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1636892698, now seen corresponding path program 24 times [2021-05-02 12:32:24,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:24,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316738557] [2021-05-02 12:32:24,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-05-02 12:32:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-05-02 12:32:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-02 12:32:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-05-02 12:32:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-05-02 12:32:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-05-02 12:32:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-05-02 12:32:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-05-02 12:32:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-02 12:32:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-05-02 12:32:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-02 12:32:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-05-02 12:32:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:25,178 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 200 proven. 137 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-05-02 12:32:25,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:25,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316738557] [2021-05-02 12:32:25,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316738557] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:25,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472875946] [2021-05-02 12:32:25,178 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 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 12:32:25,242 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-05-02 12:32:25,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:32:25,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 55 conjunts are in the unsatisfiable core [2021-05-02 12:32:25,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:25,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:25,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:26,781 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 44 proven. 326 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-05-02 12:32:26,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472875946] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:26,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:26,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 35] total 65 [2021-05-02 12:32:26,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853432923] [2021-05-02 12:32:26,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-05-02 12:32:26,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:26,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-05-02 12:32:26,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=3791, Unknown=0, NotChecked=0, Total=4160 [2021-05-02 12:32:26,782 INFO L87 Difference]: Start difference. First operand 114 states and 115 transitions. Second operand has 65 states, 64 states have (on average 1.515625) internal successors, (97), 62 states have internal predecessors, (97), 26 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-05-02 12:32:29,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:29,629 INFO L93 Difference]: Finished difference Result 176 states and 191 transitions. [2021-05-02 12:32:29,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-05-02 12:32:29,629 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 1.515625) internal successors, (97), 62 states have internal predecessors, (97), 26 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 111 [2021-05-02 12:32:29,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:29,630 INFO L225 Difference]: With dead ends: 176 [2021-05-02 12:32:29,630 INFO L226 Difference]: Without dead ends: 123 [2021-05-02 12:32:29,631 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2608 ImplicationChecksByTransitivity, 4103.9ms TimeCoverageRelationStatistics Valid=902, Invalid=11088, Unknown=0, NotChecked=0, Total=11990 [2021-05-02 12:32:29,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-05-02 12:32:29,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 115. [2021-05-02 12:32:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 85 states have (on average 1.0235294117647058) internal successors, (87), 86 states have internal predecessors, (87), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2021-05-02 12:32:29,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 116 transitions. [2021-05-02 12:32:29,653 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 116 transitions. Word has length 111 [2021-05-02 12:32:29,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:29,653 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 116 transitions. [2021-05-02 12:32:29,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 65 states, 64 states have (on average 1.515625) internal successors, (97), 62 states have internal predecessors, (97), 26 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-05-02 12:32:29,653 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 116 transitions. [2021-05-02 12:32:29,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-05-02 12:32:29,654 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:29,654 INFO L523 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:29,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-05-02 12:32:29,876 INFO L428 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:29,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:29,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1984568398, now seen corresponding path program 25 times [2021-05-02 12:32:29,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:29,876 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141297221] [2021-05-02 12:32:29,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-05-02 12:32:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-02 12:32:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-05-02 12:32:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-02 12:32:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-05-02 12:32:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-05-02 12:32:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-05-02 12:32:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-02 12:32:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-05-02 12:32:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-05-02 12:32:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-05-02 12:32:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-02 12:32:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,272 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 90 proven. 261 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-05-02 12:32:30,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:30,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141297221] [2021-05-02 12:32:30,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141297221] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:30,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521967655] [2021-05-02 12:32:30,273 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 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 12:32:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:30,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 48 conjunts are in the unsatisfiable core [2021-05-02 12:32:30,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:30,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:30,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:31,044 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 24 proven. 327 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-05-02 12:32:31,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521967655] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:31,044 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:31,044 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31] total 48 [2021-05-02 12:32:31,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479732628] [2021-05-02 12:32:31,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-05-02 12:32:31,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:31,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-05-02 12:32:31,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=1937, Unknown=0, NotChecked=0, Total=2256 [2021-05-02 12:32:31,045 INFO L87 Difference]: Start difference. First operand 115 states and 116 transitions. Second operand has 48 states, 48 states have (on average 1.4375) internal successors, (69), 45 states have internal predecessors, (69), 14 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-02 12:32:32,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:32,355 INFO L93 Difference]: Finished difference Result 125 states and 126 transitions. [2021-05-02 12:32:32,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-02 12:32:32,356 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.4375) internal successors, (69), 45 states have internal predecessors, (69), 14 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 112 [2021-05-02 12:32:32,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:32,357 INFO L225 Difference]: With dead ends: 125 [2021-05-02 12:32:32,357 INFO L226 Difference]: Without dead ends: 123 [2021-05-02 12:32:32,358 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1464 ImplicationChecksByTransitivity, 1614.7ms TimeCoverageRelationStatistics Valid=915, Invalid=5091, Unknown=0, NotChecked=0, Total=6006 [2021-05-02 12:32:32,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-05-02 12:32:32,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2021-05-02 12:32:32,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 90 states have (on average 1.0222222222222221) internal successors, (92), 91 states have internal predecessors, (92), 16 states have call successors, (16), 16 states have call predecessors, (16), 15 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2021-05-02 12:32:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 123 transitions. [2021-05-02 12:32:32,367 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 123 transitions. Word has length 112 [2021-05-02 12:32:32,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:32,367 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 123 transitions. [2021-05-02 12:32:32,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 1.4375) internal successors, (69), 45 states have internal predecessors, (69), 14 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-02 12:32:32,367 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 123 transitions. [2021-05-02 12:32:32,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-02 12:32:32,368 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:32,368 INFO L523 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:32,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-05-02 12:32:32,568 INFO L428 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:32,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:32,569 INFO L82 PathProgramCache]: Analyzing trace with hash -773994875, now seen corresponding path program 26 times [2021-05-02 12:32:32,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:32,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898801850] [2021-05-02 12:32:32,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-05-02 12:32:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-02 12:32:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-05-02 12:32:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-02 12:32:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-05-02 12:32:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-05-02 12:32:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-05-02 12:32:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-02 12:32:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-05-02 12:32:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-05-02 12:32:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-05-02 12:32:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-02 12:32:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-05-02 12:32:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 236 proven. 155 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-05-02 12:32:33,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:33,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898801850] [2021-05-02 12:32:33,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898801850] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:33,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081913682] [2021-05-02 12:32:33,747 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 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 12:32:33,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:32:33,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:32:33,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 56 conjunts are in the unsatisfiable core [2021-05-02 12:32:33,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:33,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:33,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:33,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:33,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:33,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:33,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:33,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:33,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:33,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:33,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:34,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:35,646 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 25 proven. 402 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-05-02 12:32:35,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081913682] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:35,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:35,647 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 37] total 69 [2021-05-02 12:32:35,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647672855] [2021-05-02 12:32:35,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-05-02 12:32:35,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:35,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-05-02 12:32:35,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=410, Invalid=4282, Unknown=0, NotChecked=0, Total=4692 [2021-05-02 12:32:35,648 INFO L87 Difference]: Start difference. First operand 122 states and 123 transitions. Second operand has 69 states, 68 states have (on average 1.5147058823529411) internal successors, (103), 66 states have internal predecessors, (103), 28 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-05-02 12:32:39,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:39,227 INFO L93 Difference]: Finished difference Result 187 states and 203 transitions. [2021-05-02 12:32:39,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-05-02 12:32:39,228 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 68 states have (on average 1.5147058823529411) internal successors, (103), 66 states have internal predecessors, (103), 28 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Word has length 119 [2021-05-02 12:32:39,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:39,229 INFO L225 Difference]: With dead ends: 187 [2021-05-02 12:32:39,229 INFO L226 Difference]: Without dead ends: 131 [2021-05-02 12:32:39,230 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 115 SyntacticMatches, 1 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2978 ImplicationChecksByTransitivity, 4706.3ms TimeCoverageRelationStatistics Valid=1002, Invalid=12570, Unknown=0, NotChecked=0, Total=13572 [2021-05-02 12:32:39,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-05-02 12:32:39,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 123. [2021-05-02 12:32:39,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 91 states have (on average 1.021978021978022) internal successors, (93), 92 states have internal predecessors, (93), 16 states have call successors, (16), 16 states have call predecessors, (16), 15 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2021-05-02 12:32:39,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 124 transitions. [2021-05-02 12:32:39,241 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 124 transitions. Word has length 119 [2021-05-02 12:32:39,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:39,242 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 124 transitions. [2021-05-02 12:32:39,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 69 states, 68 states have (on average 1.5147058823529411) internal successors, (103), 66 states have internal predecessors, (103), 28 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-05-02 12:32:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 124 transitions. [2021-05-02 12:32:39,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-02 12:32:39,242 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:39,242 INFO L523 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:39,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:32:39,465 INFO L428 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:39,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:39,465 INFO L82 PathProgramCache]: Analyzing trace with hash -333832623, now seen corresponding path program 27 times [2021-05-02 12:32:39,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:39,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797334250] [2021-05-02 12:32:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-02 12:32:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-05-02 12:32:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-05-02 12:32:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-05-02 12:32:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-02 12:32:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-05-02 12:32:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-02 12:32:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-05-02 12:32:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-05-02 12:32:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-05-02 12:32:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-05-02 12:32:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-05-02 12:32:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-02 12:32:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:39,940 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 104 proven. 302 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-05-02 12:32:39,940 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:39,940 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797334250] [2021-05-02 12:32:39,940 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797334250] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:39,940 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88310309] [2021-05-02 12:32:39,940 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 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 12:32:40,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-05-02 12:32:40,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:32:40,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 51 conjunts are in the unsatisfiable core [2021-05-02 12:32:40,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:40,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:40,839 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 26 proven. 380 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-05-02 12:32:40,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88310309] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:40,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:40,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33] total 51 [2021-05-02 12:32:40,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048949116] [2021-05-02 12:32:40,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-05-02 12:32:40,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:40,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-05-02 12:32:40,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=2187, Unknown=0, NotChecked=0, Total=2550 [2021-05-02 12:32:40,840 INFO L87 Difference]: Start difference. First operand 123 states and 124 transitions. Second operand has 51 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 48 states have internal predecessors, (73), 15 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-05-02 12:32:42,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:42,359 INFO L93 Difference]: Finished difference Result 133 states and 134 transitions. [2021-05-02 12:32:42,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-02 12:32:42,359 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 48 states have internal predecessors, (73), 15 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 120 [2021-05-02 12:32:42,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:42,360 INFO L225 Difference]: With dead ends: 133 [2021-05-02 12:32:42,360 INFO L226 Difference]: Without dead ends: 131 [2021-05-02 12:32:42,361 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1669 ImplicationChecksByTransitivity, 1842.5ms TimeCoverageRelationStatistics Valid=1045, Invalid=5761, Unknown=0, NotChecked=0, Total=6806 [2021-05-02 12:32:42,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-05-02 12:32:42,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2021-05-02 12:32:42,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 96 states have (on average 1.0208333333333333) internal successors, (98), 97 states have internal predecessors, (98), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-02 12:32:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 131 transitions. [2021-05-02 12:32:42,372 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 131 transitions. Word has length 120 [2021-05-02 12:32:42,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:42,372 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 131 transitions. [2021-05-02 12:32:42,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 51 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 48 states have internal predecessors, (73), 15 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-05-02 12:32:42,372 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 131 transitions. [2021-05-02 12:32:42,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-05-02 12:32:42,373 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:42,373 INFO L523 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:42,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:32:42,581 INFO L428 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:42,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:42,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1073687302, now seen corresponding path program 28 times [2021-05-02 12:32:42,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:42,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073956957] [2021-05-02 12:32:42,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-02 12:32:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-05-02 12:32:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-05-02 12:32:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-05-02 12:32:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-02 12:32:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-05-02 12:32:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-02 12:32:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-05-02 12:32:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-05-02 12:32:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-05-02 12:32:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-05-02 12:32:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-05-02 12:32:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-02 12:32:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-05-02 12:32:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 275 proven. 174 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-05-02 12:32:43,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:43,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073956957] [2021-05-02 12:32:43,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073956957] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:43,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094894900] [2021-05-02 12:32:43,906 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 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 12:32:44,002 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:32:44,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:32:44,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 73 conjunts are in the unsatisfiable core [2021-05-02 12:32:44,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:44,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:44,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:45,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:45,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:45,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:45,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:45,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:45,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:45,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:45,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:45,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:45,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:45,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:45,304 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 66 proven. 422 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-05-02 12:32:45,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094894900] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:45,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:45,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 58 [2021-05-02 12:32:45,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422232708] [2021-05-02 12:32:45,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-05-02 12:32:45,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:45,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-05-02 12:32:45,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=2973, Unknown=0, NotChecked=0, Total=3306 [2021-05-02 12:32:45,306 INFO L87 Difference]: Start difference. First operand 130 states and 131 transitions. Second operand has 58 states, 57 states have (on average 1.6666666666666667) internal successors, (95), 56 states have internal predecessors, (95), 30 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-05-02 12:32:47,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:47,967 INFO L93 Difference]: Finished difference Result 246 states and 251 transitions. [2021-05-02 12:32:47,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-05-02 12:32:47,968 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 1.6666666666666667) internal successors, (95), 56 states have internal predecessors, (95), 30 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Word has length 127 [2021-05-02 12:32:47,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:47,969 INFO L225 Difference]: With dead ends: 246 [2021-05-02 12:32:47,969 INFO L226 Difference]: Without dead ends: 139 [2021-05-02 12:32:47,970 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 136 SyntacticMatches, 3 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2148 ImplicationChecksByTransitivity, 3464.4ms TimeCoverageRelationStatistics Valid=716, Invalid=8596, Unknown=0, NotChecked=0, Total=9312 [2021-05-02 12:32:47,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-05-02 12:32:47,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 131. [2021-05-02 12:32:47,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 97 states have (on average 1.0206185567010309) internal successors, (99), 98 states have internal predecessors, (99), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-02 12:32:47,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 132 transitions. [2021-05-02 12:32:47,982 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 132 transitions. Word has length 127 [2021-05-02 12:32:47,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:47,983 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 132 transitions. [2021-05-02 12:32:47,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 58 states, 57 states have (on average 1.6666666666666667) internal successors, (95), 56 states have internal predecessors, (95), 30 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-05-02 12:32:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 132 transitions. [2021-05-02 12:32:47,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-05-02 12:32:47,983 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:47,984 INFO L523 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:48,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:32:48,185 INFO L428 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:48,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:48,185 INFO L82 PathProgramCache]: Analyzing trace with hash -964888878, now seen corresponding path program 29 times [2021-05-02 12:32:48,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:48,185 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73287168] [2021-05-02 12:32:48,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-05-02 12:32:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-05-02 12:32:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-05-02 12:32:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-05-02 12:32:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-05-02 12:32:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-02 12:32:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-05-02 12:32:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-05-02 12:32:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-05-02 12:32:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-05-02 12:32:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-05-02 12:32:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-02 12:32:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-05-02 12:32:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-02 12:32:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:48,917 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 119 proven. 346 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-05-02 12:32:48,918 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:48,918 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73287168] [2021-05-02 12:32:48,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73287168] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:48,918 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435854208] [2021-05-02 12:32:48,918 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 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 12:32:49,015 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2021-05-02 12:32:49,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:32:49,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 54 conjunts are in the unsatisfiable core [2021-05-02 12:32:49,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:49,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:49,984 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 28 proven. 437 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-05-02 12:32:49,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435854208] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:49,984 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:49,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 35] total 54 [2021-05-02 12:32:49,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832207815] [2021-05-02 12:32:49,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-05-02 12:32:49,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:49,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-05-02 12:32:49,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=410, Invalid=2452, Unknown=0, NotChecked=0, Total=2862 [2021-05-02 12:32:49,986 INFO L87 Difference]: Start difference. First operand 131 states and 132 transitions. Second operand has 54 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 51 states have internal predecessors, (77), 16 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-05-02 12:32:51,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:32:51,760 INFO L93 Difference]: Finished difference Result 141 states and 142 transitions. [2021-05-02 12:32:51,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-02 12:32:51,761 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 51 states have internal predecessors, (77), 16 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 128 [2021-05-02 12:32:51,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:32:51,762 INFO L225 Difference]: With dead ends: 141 [2021-05-02 12:32:51,762 INFO L226 Difference]: Without dead ends: 139 [2021-05-02 12:32:51,763 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1887 ImplicationChecksByTransitivity, 2374.7ms TimeCoverageRelationStatistics Valid=1184, Invalid=6472, Unknown=0, NotChecked=0, Total=7656 [2021-05-02 12:32:51,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-05-02 12:32:51,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 138. [2021-05-02 12:32:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 102 states have (on average 1.0196078431372548) internal successors, (104), 103 states have internal predecessors, (104), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-02 12:32:51,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 139 transitions. [2021-05-02 12:32:51,776 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 139 transitions. Word has length 128 [2021-05-02 12:32:51,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:32:51,776 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 139 transitions. [2021-05-02 12:32:51,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 54 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 51 states have internal predecessors, (77), 16 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-05-02 12:32:51,776 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 139 transitions. [2021-05-02 12:32:51,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-05-02 12:32:51,777 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:32:51,777 INFO L523 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:32:51,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-05-02 12:32:51,993 INFO L428 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:32:51,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:32:51,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1448022171, now seen corresponding path program 30 times [2021-05-02 12:32:51,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:32:51,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770054838] [2021-05-02 12:32:51,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:32:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:32:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-05-02 12:32:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-05-02 12:32:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-05-02 12:32:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-05-02 12:32:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-05-02 12:32:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-02 12:32:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-05-02 12:32:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-05-02 12:32:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-05-02 12:32:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-05-02 12:32:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-05-02 12:32:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-02 12:32:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-05-02 12:32:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-02 12:32:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-05-02 12:32:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:32:53,579 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 317 proven. 194 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-05-02 12:32:53,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:32:53,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770054838] [2021-05-02 12:32:53,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770054838] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:53,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125219906] [2021-05-02 12:32:53,579 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 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 12:32:53,655 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2021-05-02 12:32:53,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:32:53,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 62 conjunts are in the unsatisfiable core [2021-05-02 12:32:53,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:32:53,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:53,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:54,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:32:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 53 proven. 500 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-05-02 12:32:55,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125219906] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:32:55,928 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:32:55,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 41] total 77 [2021-05-02 12:32:55,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594554289] [2021-05-02 12:32:55,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 77 states [2021-05-02 12:32:55,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:32:55,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-05-02 12:32:55,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=517, Invalid=5335, Unknown=0, NotChecked=0, Total=5852 [2021-05-02 12:32:55,930 INFO L87 Difference]: Start difference. First operand 138 states and 139 transitions. Second operand has 77 states, 76 states have (on average 1.513157894736842) internal successors, (115), 74 states have internal predecessors, (115), 32 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-05-02 12:33:00,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:33:00,425 INFO L93 Difference]: Finished difference Result 209 states and 227 transitions. [2021-05-02 12:33:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-05-02 12:33:00,425 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 76 states have (on average 1.513157894736842) internal successors, (115), 74 states have internal predecessors, (115), 32 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Word has length 135 [2021-05-02 12:33:00,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:33:00,426 INFO L225 Difference]: With dead ends: 209 [2021-05-02 12:33:00,427 INFO L226 Difference]: Without dead ends: 147 [2021-05-02 12:33:00,428 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3729 ImplicationChecksByTransitivity, 5889.4ms TimeCoverageRelationStatistics Valid=1236, Invalid=15794, Unknown=0, NotChecked=0, Total=17030 [2021-05-02 12:33:00,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-05-02 12:33:00,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 139. [2021-05-02 12:33:00,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 103 states have (on average 1.0194174757281553) internal successors, (105), 104 states have internal predecessors, (105), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-02 12:33:00,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 140 transitions. [2021-05-02 12:33:00,442 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 140 transitions. Word has length 135 [2021-05-02 12:33:00,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:33:00,442 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 140 transitions. [2021-05-02 12:33:00,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 77 states, 76 states have (on average 1.513157894736842) internal successors, (115), 74 states have internal predecessors, (115), 32 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-05-02 12:33:00,442 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 140 transitions. [2021-05-02 12:33:00,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-05-02 12:33:00,443 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:33:00,443 INFO L523 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:33:00,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:33:00,666 INFO L428 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:33:00,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:33:00,666 INFO L82 PathProgramCache]: Analyzing trace with hash -843305167, now seen corresponding path program 31 times [2021-05-02 12:33:00,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:33:00,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518602555] [2021-05-02 12:33:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:33:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:33:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-05-02 12:33:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-05-02 12:33:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-05-02 12:33:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-05-02 12:33:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-02 12:33:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-05-02 12:33:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-02 12:33:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-05-02 12:33:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-05-02 12:33:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-05-02 12:33:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-02 12:33:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-05-02 12:33:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-05-02 12:33:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-05-02 12:33:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-02 12:33:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 948 backedges. 135 proven. 393 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-05-02 12:33:01,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:33:01,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518602555] [2021-05-02 12:33:01,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518602555] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:01,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560249545] [2021-05-02 12:33:01,303 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 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 12:33:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:01,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 57 conjunts are in the unsatisfiable core [2021-05-02 12:33:01,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:33:01,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:01,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:02,415 INFO L134 CoverageAnalysis]: Checked inductivity of 948 backedges. 30 proven. 498 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-05-02 12:33:02,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560249545] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:02,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:33:02,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 37] total 57 [2021-05-02 12:33:02,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667075207] [2021-05-02 12:33:02,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-05-02 12:33:02,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:33:02,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-05-02 12:33:02,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=460, Invalid=2732, Unknown=0, NotChecked=0, Total=3192 [2021-05-02 12:33:02,416 INFO L87 Difference]: Start difference. First operand 139 states and 140 transitions. Second operand has 57 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 54 states have internal predecessors, (81), 17 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-02 12:33:04,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:33:04,275 INFO L93 Difference]: Finished difference Result 149 states and 150 transitions. [2021-05-02 12:33:04,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-02 12:33:04,276 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 54 states have internal predecessors, (81), 17 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 136 [2021-05-02 12:33:04,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:33:04,277 INFO L225 Difference]: With dead ends: 149 [2021-05-02 12:33:04,277 INFO L226 Difference]: Without dead ends: 147 [2021-05-02 12:33:04,277 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2118 ImplicationChecksByTransitivity, 2370.3ms TimeCoverageRelationStatistics Valid=1332, Invalid=7224, Unknown=0, NotChecked=0, Total=8556 [2021-05-02 12:33:04,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-05-02 12:33:04,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2021-05-02 12:33:04,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 108 states have (on average 1.0185185185185186) internal successors, (110), 109 states have internal predecessors, (110), 19 states have call successors, (19), 19 states have call predecessors, (19), 18 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2021-05-02 12:33:04,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 147 transitions. [2021-05-02 12:33:04,292 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 147 transitions. Word has length 136 [2021-05-02 12:33:04,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:33:04,292 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 147 transitions. [2021-05-02 12:33:04,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 57 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 54 states have internal predecessors, (81), 17 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-02 12:33:04,292 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 147 transitions. [2021-05-02 12:33:04,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-05-02 12:33:04,293 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:33:04,293 INFO L523 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:33:04,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-05-02 12:33:04,516 INFO L428 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:33:04,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:33:04,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1678615002, now seen corresponding path program 32 times [2021-05-02 12:33:04,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:33:04,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050452688] [2021-05-02 12:33:04,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:33:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:33:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-05-02 12:33:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-05-02 12:33:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-05-02 12:33:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-05-02 12:33:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-02 12:33:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-05-02 12:33:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-02 12:33:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-05-02 12:33:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-05-02 12:33:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-05-02 12:33:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-02 12:33:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-05-02 12:33:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-05-02 12:33:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-05-02 12:33:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-02 12:33:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-05-02 12:33:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:06,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 362 proven. 215 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-05-02 12:33:06,050 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:33:06,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050452688] [2021-05-02 12:33:06,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050452688] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:06,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286424044] [2021-05-02 12:33:06,050 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 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 12:33:06,116 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:33:06,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:33:06,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 65 conjunts are in the unsatisfiable core [2021-05-02 12:33:06,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:33:06,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:06,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:07,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:08,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 31 proven. 591 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-05-02 12:33:08,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286424044] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:08,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:33:08,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 43] total 81 [2021-05-02 12:33:08,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230912914] [2021-05-02 12:33:08,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 81 states [2021-05-02 12:33:08,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:33:08,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-05-02 12:33:08,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=566, Invalid=5914, Unknown=0, NotChecked=0, Total=6480 [2021-05-02 12:33:08,740 INFO L87 Difference]: Start difference. First operand 146 states and 147 transitions. Second operand has 81 states, 80 states have (on average 1.5125) internal successors, (121), 78 states have internal predecessors, (121), 34 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-05-02 12:33:13,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:33:13,931 INFO L93 Difference]: Finished difference Result 220 states and 239 transitions. [2021-05-02 12:33:13,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-05-02 12:33:13,932 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 80 states have (on average 1.5125) internal successors, (121), 78 states have internal predecessors, (121), 34 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Word has length 143 [2021-05-02 12:33:13,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:33:13,933 INFO L225 Difference]: With dead ends: 220 [2021-05-02 12:33:13,933 INFO L226 Difference]: Without dead ends: 155 [2021-05-02 12:33:13,934 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4169 ImplicationChecksByTransitivity, 6613.5ms TimeCoverageRelationStatistics Valid=1353, Invalid=17553, Unknown=0, NotChecked=0, Total=18906 [2021-05-02 12:33:13,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-05-02 12:33:13,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 147. [2021-05-02 12:33:13,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 109 states have (on average 1.018348623853211) internal successors, (111), 110 states have internal predecessors, (111), 19 states have call successors, (19), 19 states have call predecessors, (19), 18 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2021-05-02 12:33:13,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 148 transitions. [2021-05-02 12:33:13,949 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 148 transitions. Word has length 143 [2021-05-02 12:33:13,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:33:13,949 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 148 transitions. [2021-05-02 12:33:13,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 81 states, 80 states have (on average 1.5125) internal successors, (121), 78 states have internal predecessors, (121), 34 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-05-02 12:33:13,949 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 148 transitions. [2021-05-02 12:33:13,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-05-02 12:33:13,950 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:33:13,950 INFO L523 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:33:14,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:33:14,161 INFO L428 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:33:14,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:33:14,161 INFO L82 PathProgramCache]: Analyzing trace with hash -2099834382, now seen corresponding path program 33 times [2021-05-02 12:33:14,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:33:14,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472668184] [2021-05-02 12:33:14,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:33:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:33:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-05-02 12:33:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-05-02 12:33:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-05-02 12:33:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-02 12:33:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-05-02 12:33:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-05-02 12:33:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-05-02 12:33:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-02 12:33:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-05-02 12:33:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-02 12:33:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-05-02 12:33:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-05-02 12:33:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-05-02 12:33:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-05-02 12:33:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-05-02 12:33:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-02 12:33:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:14,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1075 backedges. 152 proven. 443 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-05-02 12:33:14,784 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:33:14,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472668184] [2021-05-02 12:33:14,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472668184] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:14,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243906197] [2021-05-02 12:33:14,784 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 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 12:33:14,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-05-02 12:33:14,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:33:14,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 62 conjunts are in the unsatisfiable core [2021-05-02 12:33:14,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:33:14,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:14,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:14,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:14,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:14,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:14,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:14,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:14,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:14,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:14,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:14,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:14,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:15,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1075 backedges. 32 proven. 563 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-05-02 12:33:15,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243906197] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:15,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:33:15,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 39] total 60 [2021-05-02 12:33:15,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750560621] [2021-05-02 12:33:15,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-05-02 12:33:15,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:33:15,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-05-02 12:33:15,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=513, Invalid=3027, Unknown=0, NotChecked=0, Total=3540 [2021-05-02 12:33:15,971 INFO L87 Difference]: Start difference. First operand 147 states and 148 transitions. Second operand has 60 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 57 states have internal predecessors, (85), 18 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-02 12:33:18,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:33:18,166 INFO L93 Difference]: Finished difference Result 157 states and 158 transitions. [2021-05-02 12:33:18,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-02 12:33:18,167 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 57 states have internal predecessors, (85), 18 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 144 [2021-05-02 12:33:18,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:33:18,168 INFO L225 Difference]: With dead ends: 157 [2021-05-02 12:33:18,168 INFO L226 Difference]: Without dead ends: 155 [2021-05-02 12:33:18,168 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 158 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2362 ImplicationChecksByTransitivity, 2629.3ms TimeCoverageRelationStatistics Valid=1489, Invalid=8017, Unknown=0, NotChecked=0, Total=9506 [2021-05-02 12:33:18,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-05-02 12:33:18,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 154. [2021-05-02 12:33:18,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 114 states have (on average 1.0175438596491229) internal successors, (116), 115 states have internal predecessors, (116), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2021-05-02 12:33:18,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 155 transitions. [2021-05-02 12:33:18,180 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 155 transitions. Word has length 144 [2021-05-02 12:33:18,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:33:18,180 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 155 transitions. [2021-05-02 12:33:18,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 57 states have internal predecessors, (85), 18 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-02 12:33:18,181 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 155 transitions. [2021-05-02 12:33:18,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-05-02 12:33:18,181 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:33:18,181 INFO L523 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:33:18,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-05-02 12:33:18,393 INFO L428 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:33:18,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:33:18,393 INFO L82 PathProgramCache]: Analyzing trace with hash -268955579, now seen corresponding path program 34 times [2021-05-02 12:33:18,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:33:18,393 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742588540] [2021-05-02 12:33:18,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:33:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:33:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-05-02 12:33:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-05-02 12:33:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-05-02 12:33:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-02 12:33:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-05-02 12:33:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-05-02 12:33:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-05-02 12:33:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-02 12:33:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-05-02 12:33:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-02 12:33:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-05-02 12:33:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-05-02 12:33:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-05-02 12:33:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-05-02 12:33:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-05-02 12:33:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-02 12:33:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-05-02 12:33:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 410 proven. 237 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-05-02 12:33:20,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:33:20,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742588540] [2021-05-02 12:33:20,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742588540] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:20,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063216687] [2021-05-02 12:33:20,226 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 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 12:33:20,314 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:33:20,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:33:20,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 85 conjunts are in the unsatisfiable core [2021-05-02 12:33:20,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:33:20,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:20,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:21,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:22,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:22,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:22,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 33 proven. 662 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2021-05-02 12:33:22,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063216687] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:22,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:33:22,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 67 [2021-05-02 12:33:22,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218751571] [2021-05-02 12:33:22,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-05-02 12:33:22,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:33:22,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-05-02 12:33:22,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=3975, Unknown=0, NotChecked=0, Total=4422 [2021-05-02 12:33:22,136 INFO L87 Difference]: Start difference. First operand 154 states and 155 transitions. Second operand has 67 states, 66 states have (on average 1.6666666666666667) internal successors, (110), 65 states have internal predecessors, (110), 36 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-05-02 12:33:25,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:33:25,774 INFO L93 Difference]: Finished difference Result 291 states and 296 transitions. [2021-05-02 12:33:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-05-02 12:33:25,774 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 1.6666666666666667) internal successors, (110), 65 states have internal predecessors, (110), 36 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 151 [2021-05-02 12:33:25,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:33:25,775 INFO L225 Difference]: With dead ends: 291 [2021-05-02 12:33:25,775 INFO L226 Difference]: Without dead ends: 163 [2021-05-02 12:33:25,776 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 163 SyntacticMatches, 3 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2859 ImplicationChecksByTransitivity, 4813.8ms TimeCoverageRelationStatistics Valid=923, Invalid=11509, Unknown=0, NotChecked=0, Total=12432 [2021-05-02 12:33:25,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-05-02 12:33:25,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 155. [2021-05-02 12:33:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 115 states have (on average 1.017391304347826) internal successors, (117), 116 states have internal predecessors, (117), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2021-05-02 12:33:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 156 transitions. [2021-05-02 12:33:25,789 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 156 transitions. Word has length 151 [2021-05-02 12:33:25,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:33:25,790 INFO L480 AbstractCegarLoop]: Abstraction has 155 states and 156 transitions. [2021-05-02 12:33:25,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 67 states, 66 states have (on average 1.6666666666666667) internal successors, (110), 65 states have internal predecessors, (110), 36 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-05-02 12:33:25,790 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 156 transitions. [2021-05-02 12:33:25,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-05-02 12:33:25,791 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:33:25,791 INFO L523 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:33:26,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-05-02 12:33:26,013 INFO L428 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:33:26,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:33:26,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1291700207, now seen corresponding path program 35 times [2021-05-02 12:33:26,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:33:26,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32176997] [2021-05-02 12:33:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:33:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:33:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-02 12:33:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-05-02 12:33:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-02 12:33:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-05-02 12:33:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-05-02 12:33:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-05-02 12:33:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-05-02 12:33:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-05-02 12:33:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-02 12:33:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-05-02 12:33:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-05-02 12:33:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-05-02 12:33:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-05-02 12:33:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-05-02 12:33:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-02 12:33:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-05-02 12:33:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-02 12:33:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 170 proven. 496 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-05-02 12:33:26,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:33:26,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32176997] [2021-05-02 12:33:26,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32176997] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:26,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549682808] [2021-05-02 12:33:26,896 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 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 12:33:26,992 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-05-02 12:33:26,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:33:26,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 63 conjunts are in the unsatisfiable core [2021-05-02 12:33:26,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:33:27,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:27,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 34 proven. 632 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-05-02 12:33:28,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549682808] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:28,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:33:28,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41] total 63 [2021-05-02 12:33:28,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58002783] [2021-05-02 12:33:28,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 63 states [2021-05-02 12:33:28,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:33:28,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-05-02 12:33:28,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=569, Invalid=3337, Unknown=0, NotChecked=0, Total=3906 [2021-05-02 12:33:28,306 INFO L87 Difference]: Start difference. First operand 155 states and 156 transitions. Second operand has 63 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 60 states have internal predecessors, (89), 19 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-05-02 12:33:30,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:33:30,760 INFO L93 Difference]: Finished difference Result 165 states and 166 transitions. [2021-05-02 12:33:30,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-02 12:33:30,761 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 60 states have internal predecessors, (89), 19 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 152 [2021-05-02 12:33:30,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:33:30,762 INFO L225 Difference]: With dead ends: 165 [2021-05-02 12:33:30,762 INFO L226 Difference]: Without dead ends: 163 [2021-05-02 12:33:30,763 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2619 ImplicationChecksByTransitivity, 3216.5ms TimeCoverageRelationStatistics Valid=1655, Invalid=8851, Unknown=0, NotChecked=0, Total=10506 [2021-05-02 12:33:30,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-05-02 12:33:30,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 162. [2021-05-02 12:33:30,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 120 states have (on average 1.0166666666666666) internal successors, (122), 121 states have internal predecessors, (122), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2021-05-02 12:33:30,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 163 transitions. [2021-05-02 12:33:30,778 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 163 transitions. Word has length 152 [2021-05-02 12:33:30,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:33:30,778 INFO L480 AbstractCegarLoop]: Abstraction has 162 states and 163 transitions. [2021-05-02 12:33:30,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 63 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 60 states have internal predecessors, (89), 19 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-05-02 12:33:30,778 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 163 transitions. [2021-05-02 12:33:30,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-05-02 12:33:30,779 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:33:30,779 INFO L523 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:33:30,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-05-02 12:33:30,993 INFO L428 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:33:30,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:33:30,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1247451462, now seen corresponding path program 36 times [2021-05-02 12:33:30,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:33:30,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129946156] [2021-05-02 12:33:30,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:33:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:33:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-02 12:33:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-05-02 12:33:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-02 12:33:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-05-02 12:33:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-05-02 12:33:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-05-02 12:33:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-05-02 12:33:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-05-02 12:33:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-02 12:33:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-05-02 12:33:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-05-02 12:33:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-05-02 12:33:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-05-02 12:33:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-05-02 12:33:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-02 12:33:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-05-02 12:33:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-02 12:33:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-05-02 12:33:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:32,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 461 proven. 260 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-05-02 12:33:32,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:33:32,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129946156] [2021-05-02 12:33:32,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129946156] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:32,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122907707] [2021-05-02 12:33:32,983 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 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 12:33:33,099 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-05-02 12:33:33,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:33:33,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 73 conjunts are in the unsatisfiable core [2021-05-02 12:33:33,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:33:33,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:33,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:34,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:35,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:36,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 38 proven. 734 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2021-05-02 12:33:36,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122907707] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:36,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:33:36,432 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 89 [2021-05-02 12:33:36,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992060438] [2021-05-02 12:33:36,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states [2021-05-02 12:33:36,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:33:36,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-05-02 12:33:36,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=684, Invalid=7148, Unknown=0, NotChecked=0, Total=7832 [2021-05-02 12:33:36,433 INFO L87 Difference]: Start difference. First operand 162 states and 163 transitions. Second operand has 89 states, 88 states have (on average 1.5113636363636365) internal successors, (133), 86 states have internal predecessors, (133), 38 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-05-02 12:33:43,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:33:43,031 INFO L93 Difference]: Finished difference Result 242 states and 263 transitions. [2021-05-02 12:33:43,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-05-02 12:33:43,031 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 88 states have (on average 1.5113636363636365) internal successors, (133), 86 states have internal predecessors, (133), 38 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 159 [2021-05-02 12:33:43,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:33:43,032 INFO L225 Difference]: With dead ends: 242 [2021-05-02 12:33:43,032 INFO L226 Difference]: Without dead ends: 171 [2021-05-02 12:33:43,033 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5056 ImplicationChecksByTransitivity, 8418.2ms TimeCoverageRelationStatistics Valid=1616, Invalid=21336, Unknown=0, NotChecked=0, Total=22952 [2021-05-02 12:33:43,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-05-02 12:33:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 163. [2021-05-02 12:33:43,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 121 states have (on average 1.0165289256198347) internal successors, (123), 122 states have internal predecessors, (123), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2021-05-02 12:33:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 164 transitions. [2021-05-02 12:33:43,049 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 164 transitions. Word has length 159 [2021-05-02 12:33:43,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:33:43,050 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 164 transitions. [2021-05-02 12:33:43,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 89 states, 88 states have (on average 1.5113636363636365) internal successors, (133), 86 states have internal predecessors, (133), 38 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-05-02 12:33:43,050 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 164 transitions. [2021-05-02 12:33:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-05-02 12:33:43,051 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:33:43,051 INFO L523 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:33:43,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-05-02 12:33:43,257 INFO L428 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:33:43,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:33:43,257 INFO L82 PathProgramCache]: Analyzing trace with hash -153733870, now seen corresponding path program 37 times [2021-05-02 12:33:43,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:33:43,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504566232] [2021-05-02 12:33:43,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:33:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:33:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-05-02 12:33:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-02 12:33:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-05-02 12:33:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-05-02 12:33:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-05-02 12:33:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-05-02 12:33:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-05-02 12:33:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-02 12:33:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-05-02 12:33:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-02 12:33:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-05-02 12:33:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-05-02 12:33:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-05-02 12:33:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-02 12:33:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-05-02 12:33:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-05-02 12:33:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-05-02 12:33:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-02 12:33:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1353 backedges. 189 proven. 552 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-05-02 12:33:44,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:33:44,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504566232] [2021-05-02 12:33:44,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504566232] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:44,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929534399] [2021-05-02 12:33:44,191 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 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 12:33:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:44,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 66 conjunts are in the unsatisfiable core [2021-05-02 12:33:44,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:33:44,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:44,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:45,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1353 backedges. 36 proven. 705 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-05-02 12:33:45,670 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929534399] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:45,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:33:45,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 43] total 66 [2021-05-02 12:33:45,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723855708] [2021-05-02 12:33:45,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states [2021-05-02 12:33:45,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:33:45,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-05-02 12:33:45,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=628, Invalid=3662, Unknown=0, NotChecked=0, Total=4290 [2021-05-02 12:33:45,672 INFO L87 Difference]: Start difference. First operand 163 states and 164 transitions. Second operand has 66 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 63 states have internal predecessors, (93), 20 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-05-02 12:33:48,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:33:48,381 INFO L93 Difference]: Finished difference Result 173 states and 174 transitions. [2021-05-02 12:33:48,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-05-02 12:33:48,382 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 63 states have internal predecessors, (93), 20 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Word has length 160 [2021-05-02 12:33:48,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:33:48,383 INFO L225 Difference]: With dead ends: 173 [2021-05-02 12:33:48,383 INFO L226 Difference]: Without dead ends: 171 [2021-05-02 12:33:48,384 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 176 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2889 ImplicationChecksByTransitivity, 3400.3ms TimeCoverageRelationStatistics Valid=1830, Invalid=9726, Unknown=0, NotChecked=0, Total=11556 [2021-05-02 12:33:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-05-02 12:33:48,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 170. [2021-05-02 12:33:48,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 126 states have (on average 1.0158730158730158) internal successors, (128), 127 states have internal predecessors, (128), 22 states have call successors, (22), 22 states have call predecessors, (22), 21 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2021-05-02 12:33:48,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 171 transitions. [2021-05-02 12:33:48,400 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 171 transitions. Word has length 160 [2021-05-02 12:33:48,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:33:48,401 INFO L480 AbstractCegarLoop]: Abstraction has 170 states and 171 transitions. [2021-05-02 12:33:48,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 66 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 63 states have internal predecessors, (93), 20 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-05-02 12:33:48,401 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 171 transitions. [2021-05-02 12:33:48,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-05-02 12:33:48,402 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:33:48,402 INFO L523 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:33:48,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:33:48,623 INFO L428 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:33:48,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:33:48,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1805571803, now seen corresponding path program 38 times [2021-05-02 12:33:48,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:33:48,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862036815] [2021-05-02 12:33:48,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:33:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:33:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-05-02 12:33:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-02 12:33:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-05-02 12:33:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-05-02 12:33:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-05-02 12:33:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-05-02 12:33:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-05-02 12:33:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-02 12:33:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-05-02 12:33:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-02 12:33:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-05-02 12:33:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-05-02 12:33:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-05-02 12:33:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-02 12:33:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-05-02 12:33:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-05-02 12:33:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-05-02 12:33:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-02 12:33:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-05-02 12:33:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:33:50,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 515 proven. 284 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-05-02 12:33:50,974 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:33:50,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862036815] [2021-05-02 12:33:50,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862036815] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:50,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173730990] [2021-05-02 12:33:50,975 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 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 12:33:51,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:33:51,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:33:51,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 74 conjunts are in the unsatisfiable core [2021-05-02 12:33:51,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:33:51,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:51,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:52,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:53,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:54,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:33:55,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 37 proven. 816 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-05-02 12:33:55,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173730990] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:33:55,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:33:55,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 49] total 93 [2021-05-02 12:33:55,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584406887] [2021-05-02 12:33:55,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 93 states [2021-05-02 12:33:55,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:33:55,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-05-02 12:33:55,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=749, Invalid=7807, Unknown=0, NotChecked=0, Total=8556 [2021-05-02 12:33:55,107 INFO L87 Difference]: Start difference. First operand 170 states and 171 transitions. Second operand has 93 states, 92 states have (on average 1.5108695652173914) internal successors, (139), 90 states have internal predecessors, (139), 40 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-05-02 12:34:02,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:34:02,258 INFO L93 Difference]: Finished difference Result 253 states and 275 transitions. [2021-05-02 12:34:02,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-05-02 12:34:02,259 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 92 states have (on average 1.5108695652173914) internal successors, (139), 90 states have internal predecessors, (139), 40 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Word has length 167 [2021-05-02 12:34:02,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:34:02,261 INFO L225 Difference]: With dead ends: 253 [2021-05-02 12:34:02,261 INFO L226 Difference]: Without dead ends: 179 [2021-05-02 12:34:02,262 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5558 ImplicationChecksByTransitivity, 10019.4ms TimeCoverageRelationStatistics Valid=1758, Invalid=23364, Unknown=0, NotChecked=0, Total=25122 [2021-05-02 12:34:02,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-05-02 12:34:02,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 171. [2021-05-02 12:34:02,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 127 states have (on average 1.015748031496063) internal successors, (129), 128 states have internal predecessors, (129), 22 states have call successors, (22), 22 states have call predecessors, (22), 21 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2021-05-02 12:34:02,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 172 transitions. [2021-05-02 12:34:02,281 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 172 transitions. Word has length 167 [2021-05-02 12:34:02,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:34:02,281 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 172 transitions. [2021-05-02 12:34:02,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 93 states, 92 states have (on average 1.5108695652173914) internal successors, (139), 90 states have internal predecessors, (139), 40 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-05-02 12:34:02,282 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 172 transitions. [2021-05-02 12:34:02,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-05-02 12:34:02,282 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:34:02,283 INFO L523 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:34:02,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-05-02 12:34:02,497 INFO L428 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:34:02,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:34:02,497 INFO L82 PathProgramCache]: Analyzing trace with hash 731527409, now seen corresponding path program 39 times [2021-05-02 12:34:02,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:34:02,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429562323] [2021-05-02 12:34:02,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:34:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:34:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-02 12:34:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-05-02 12:34:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-02 12:34:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-05-02 12:34:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-05-02 12:34:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-05-02 12:34:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-02 12:34:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-05-02 12:34:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-05-02 12:34:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-05-02 12:34:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-02 12:34:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-05-02 12:34:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-02 12:34:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-05-02 12:34:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-05-02 12:34:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-05-02 12:34:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-05-02 12:34:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-05-02 12:34:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-02 12:34:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:03,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1504 backedges. 209 proven. 611 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-05-02 12:34:03,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:34:03,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429562323] [2021-05-02 12:34:03,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429562323] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:34:03,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056926257] [2021-05-02 12:34:03,432 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 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 12:34:03,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s) [2021-05-02 12:34:03,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:34:03,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 69 conjunts are in the unsatisfiable core [2021-05-02 12:34:03,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:34:03,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:03,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:04,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:05,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1504 backedges. 38 proven. 782 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-05-02 12:34:05,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056926257] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:34:05,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:34:05,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 45] total 69 [2021-05-02 12:34:05,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326472382] [2021-05-02 12:34:05,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-05-02 12:34:05,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:34:05,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-05-02 12:34:05,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=690, Invalid=4002, Unknown=0, NotChecked=0, Total=4692 [2021-05-02 12:34:05,054 INFO L87 Difference]: Start difference. First operand 171 states and 172 transitions. Second operand has 69 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 66 states have internal predecessors, (97), 21 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-05-02 12:34:08,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:34:08,182 INFO L93 Difference]: Finished difference Result 181 states and 182 transitions. [2021-05-02 12:34:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-02 12:34:08,183 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 66 states have internal predecessors, (97), 21 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 168 [2021-05-02 12:34:08,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:34:08,184 INFO L225 Difference]: With dead ends: 181 [2021-05-02 12:34:08,184 INFO L226 Difference]: Without dead ends: 179 [2021-05-02 12:34:08,185 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3172 ImplicationChecksByTransitivity, 3605.9ms TimeCoverageRelationStatistics Valid=2014, Invalid=10642, Unknown=0, NotChecked=0, Total=12656 [2021-05-02 12:34:08,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-05-02 12:34:08,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 178. [2021-05-02 12:34:08,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 132 states have (on average 1.0151515151515151) internal successors, (134), 133 states have internal predecessors, (134), 23 states have call successors, (23), 23 states have call predecessors, (23), 22 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2021-05-02 12:34:08,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 179 transitions. [2021-05-02 12:34:08,198 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 179 transitions. Word has length 168 [2021-05-02 12:34:08,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:34:08,198 INFO L480 AbstractCegarLoop]: Abstraction has 178 states and 179 transitions. [2021-05-02 12:34:08,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 66 states have internal predecessors, (97), 21 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-05-02 12:34:08,198 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 179 transitions. [2021-05-02 12:34:08,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-05-02 12:34:08,199 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:34:08,199 INFO L523 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:34:08,400 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:34:08,401 INFO L428 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:34:08,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:34:08,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1539955814, now seen corresponding path program 40 times [2021-05-02 12:34:08,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:34:08,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693793310] [2021-05-02 12:34:08,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:34:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:34:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-02 12:34:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-05-02 12:34:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-02 12:34:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-05-02 12:34:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-05-02 12:34:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-05-02 12:34:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-02 12:34:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-05-02 12:34:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-05-02 12:34:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-05-02 12:34:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-02 12:34:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-05-02 12:34:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-02 12:34:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-05-02 12:34:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-05-02 12:34:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-05-02 12:34:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-05-02 12:34:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-05-02 12:34:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-02 12:34:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-05-02 12:34:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:10,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1641 backedges. 572 proven. 309 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-05-02 12:34:10,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:34:10,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693793310] [2021-05-02 12:34:10,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693793310] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:34:10,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645653404] [2021-05-02 12:34:10,899 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 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 12:34:10,991 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:34:10,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:34:10,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 97 conjunts are in the unsatisfiable core [2021-05-02 12:34:10,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:34:11,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:11,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:12,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:13,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1641 backedges. 39 proven. 899 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2021-05-02 12:34:13,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645653404] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:34:13,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:34:13,610 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 76 [2021-05-02 12:34:13,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725754707] [2021-05-02 12:34:13,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-05-02 12:34:13,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:34:13,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-05-02 12:34:13,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=5121, Unknown=0, NotChecked=0, Total=5700 [2021-05-02 12:34:13,611 INFO L87 Difference]: Start difference. First operand 178 states and 179 transitions. Second operand has 76 states, 75 states have (on average 1.6666666666666667) internal successors, (125), 74 states have internal predecessors, (125), 42 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-05-02 12:34:18,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:34:18,638 INFO L93 Difference]: Finished difference Result 336 states and 341 transitions. [2021-05-02 12:34:18,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-05-02 12:34:18,639 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 75 states have (on average 1.6666666666666667) internal successors, (125), 74 states have internal predecessors, (125), 42 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Word has length 175 [2021-05-02 12:34:18,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:34:18,640 INFO L225 Difference]: With dead ends: 336 [2021-05-02 12:34:18,640 INFO L226 Difference]: Without dead ends: 187 [2021-05-02 12:34:18,641 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 190 SyntacticMatches, 3 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3672 ImplicationChecksByTransitivity, 6714.0ms TimeCoverageRelationStatistics Valid=1157, Invalid=14845, Unknown=0, NotChecked=0, Total=16002 [2021-05-02 12:34:18,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-05-02 12:34:18,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 179. [2021-05-02 12:34:18,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 133 states have (on average 1.0150375939849625) internal successors, (135), 134 states have internal predecessors, (135), 23 states have call successors, (23), 23 states have call predecessors, (23), 22 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2021-05-02 12:34:18,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 180 transitions. [2021-05-02 12:34:18,658 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 180 transitions. Word has length 175 [2021-05-02 12:34:18,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:34:18,658 INFO L480 AbstractCegarLoop]: Abstraction has 179 states and 180 transitions. [2021-05-02 12:34:18,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 76 states, 75 states have (on average 1.6666666666666667) internal successors, (125), 74 states have internal predecessors, (125), 42 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-05-02 12:34:18,659 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 180 transitions. [2021-05-02 12:34:18,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-05-02 12:34:18,659 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:34:18,660 INFO L523 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:34:18,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:34:18,873 INFO L428 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:34:18,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:34:18,873 INFO L82 PathProgramCache]: Analyzing trace with hash -754163662, now seen corresponding path program 41 times [2021-05-02 12:34:18,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:34:18,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973683878] [2021-05-02 12:34:18,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:34:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:34:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-05-02 12:34:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-05-02 12:34:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-05-02 12:34:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-02 12:34:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-05-02 12:34:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-02 12:34:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-05-02 12:34:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-05-02 12:34:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-05-02 12:34:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-05-02 12:34:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-05-02 12:34:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-02 12:34:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-05-02 12:34:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-05-02 12:34:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-05-02 12:34:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-05-02 12:34:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-05-02 12:34:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-02 12:34:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-05-02 12:34:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-05-02 12:34:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:19,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1663 backedges. 230 proven. 673 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-05-02 12:34:19,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:34:19,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973683878] [2021-05-02 12:34:19,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973683878] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:34:19,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270329914] [2021-05-02 12:34:19,924 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 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 12:34:20,026 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2021-05-02 12:34:20,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:34:20,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 72 conjunts are in the unsatisfiable core [2021-05-02 12:34:20,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:34:20,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:20,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:21,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1663 backedges. 40 proven. 863 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-05-02 12:34:21,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270329914] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:34:21,918 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:34:21,918 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 47] total 72 [2021-05-02 12:34:21,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105010231] [2021-05-02 12:34:21,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 72 states [2021-05-02 12:34:21,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:34:21,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-05-02 12:34:21,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=755, Invalid=4357, Unknown=0, NotChecked=0, Total=5112 [2021-05-02 12:34:21,919 INFO L87 Difference]: Start difference. First operand 179 states and 180 transitions. Second operand has 72 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 69 states have internal predecessors, (101), 22 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-05-02 12:34:25,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:34:25,458 INFO L93 Difference]: Finished difference Result 189 states and 190 transitions. [2021-05-02 12:34:25,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-05-02 12:34:25,459 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 69 states have internal predecessors, (101), 22 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 176 [2021-05-02 12:34:25,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:34:25,460 INFO L225 Difference]: With dead ends: 189 [2021-05-02 12:34:25,460 INFO L226 Difference]: Without dead ends: 187 [2021-05-02 12:34:25,461 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3468 ImplicationChecksByTransitivity, 4385.2ms TimeCoverageRelationStatistics Valid=2207, Invalid=11599, Unknown=0, NotChecked=0, Total=13806 [2021-05-02 12:34:25,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-05-02 12:34:25,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2021-05-02 12:34:25,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 138 states have (on average 1.0144927536231885) internal successors, (140), 139 states have internal predecessors, (140), 24 states have call successors, (24), 24 states have call predecessors, (24), 23 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-02 12:34:25,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 187 transitions. [2021-05-02 12:34:25,480 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 187 transitions. Word has length 176 [2021-05-02 12:34:25,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:34:25,480 INFO L480 AbstractCegarLoop]: Abstraction has 186 states and 187 transitions. [2021-05-02 12:34:25,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 72 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 69 states have internal predecessors, (101), 22 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-05-02 12:34:25,480 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 187 transitions. [2021-05-02 12:34:25,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-05-02 12:34:25,481 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:34:25,481 INFO L523 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:34:25,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-05-02 12:34:25,693 INFO L428 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:34:25,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:34:25,693 INFO L82 PathProgramCache]: Analyzing trace with hash 2115648005, now seen corresponding path program 42 times [2021-05-02 12:34:25,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:34:25,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876707773] [2021-05-02 12:34:25,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:34:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:34:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-05-02 12:34:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-05-02 12:34:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-05-02 12:34:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-02 12:34:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-05-02 12:34:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-02 12:34:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-05-02 12:34:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-05-02 12:34:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-05-02 12:34:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-05-02 12:34:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-05-02 12:34:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-02 12:34:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-05-02 12:34:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-05-02 12:34:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-05-02 12:34:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-05-02 12:34:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-05-02 12:34:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-02 12:34:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-05-02 12:34:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-05-02 12:34:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-05-02 12:34:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:28,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1807 backedges. 632 proven. 335 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-05-02 12:34:28,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:34:28,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876707773] [2021-05-02 12:34:28,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876707773] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:34:28,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385189260] [2021-05-02 12:34:28,723 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 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 12:34:28,855 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 22 check-sat command(s) [2021-05-02 12:34:28,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:34:28,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 82 conjunts are in the unsatisfiable core [2021-05-02 12:34:28,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:34:28,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:28,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:28,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:28,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:29,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:30,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:31,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:32,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1807 backedges. 77 proven. 950 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2021-05-02 12:34:33,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385189260] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:34:33,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:34:33,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 53] total 101 [2021-05-02 12:34:33,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855169068] [2021-05-02 12:34:33,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 101 states [2021-05-02 12:34:33,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:34:33,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2021-05-02 12:34:33,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=896, Invalid=9204, Unknown=0, NotChecked=0, Total=10100 [2021-05-02 12:34:33,983 INFO L87 Difference]: Start difference. First operand 186 states and 187 transitions. Second operand has 101 states, 100 states have (on average 1.51) internal successors, (151), 98 states have internal predecessors, (151), 44 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2021-05-02 12:34:43,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:34:43,696 INFO L93 Difference]: Finished difference Result 275 states and 299 transitions. [2021-05-02 12:34:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-05-02 12:34:43,697 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 100 states have (on average 1.51) internal successors, (151), 98 states have internal predecessors, (151), 44 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Word has length 183 [2021-05-02 12:34:43,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:34:43,699 INFO L225 Difference]: With dead ends: 275 [2021-05-02 12:34:43,699 INFO L226 Difference]: Without dead ends: 195 [2021-05-02 12:34:43,700 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6563 ImplicationChecksByTransitivity, 12468.0ms TimeCoverageRelationStatistics Valid=2068, Invalid=27688, Unknown=0, NotChecked=0, Total=29756 [2021-05-02 12:34:43,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-05-02 12:34:43,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 187. [2021-05-02 12:34:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 139 states have (on average 1.014388489208633) internal successors, (141), 140 states have internal predecessors, (141), 24 states have call successors, (24), 24 states have call predecessors, (24), 23 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-02 12:34:43,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 188 transitions. [2021-05-02 12:34:43,715 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 188 transitions. Word has length 183 [2021-05-02 12:34:43,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:34:43,715 INFO L480 AbstractCegarLoop]: Abstraction has 187 states and 188 transitions. [2021-05-02 12:34:43,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 101 states, 100 states have (on average 1.51) internal successors, (151), 98 states have internal predecessors, (151), 44 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2021-05-02 12:34:43,715 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 188 transitions. [2021-05-02 12:34:43,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-05-02 12:34:43,716 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:34:43,716 INFO L523 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:34:43,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-05-02 12:34:43,917 INFO L428 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:34:43,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:34:43,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1095618095, now seen corresponding path program 43 times [2021-05-02 12:34:43,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:34:43,917 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637904090] [2021-05-02 12:34:43,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:34:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:34:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-05-02 12:34:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-05-02 12:34:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-05-02 12:34:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-05-02 12:34:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-02 12:34:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-05-02 12:34:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-05-02 12:34:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-05-02 12:34:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-05-02 12:34:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-05-02 12:34:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-02 12:34:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-05-02 12:34:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-02 12:34:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-05-02 12:34:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-05-02 12:34:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-05-02 12:34:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-02 12:34:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-05-02 12:34:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-05-02 12:34:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-05-02 12:34:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-05-02 12:34:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 252 proven. 738 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-05-02 12:34:45,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:34:45,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637904090] [2021-05-02 12:34:45,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637904090] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:34:45,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673758229] [2021-05-02 12:34:45,205 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 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 12:34:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:45,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 75 conjunts are in the unsatisfiable core [2021-05-02 12:34:45,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:34:45,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:45,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:46,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 42 proven. 948 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-05-02 12:34:47,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673758229] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:34:47,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:34:47,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49] total 75 [2021-05-02 12:34:47,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204890583] [2021-05-02 12:34:47,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 75 states [2021-05-02 12:34:47,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:34:47,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-05-02 12:34:47,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=823, Invalid=4727, Unknown=0, NotChecked=0, Total=5550 [2021-05-02 12:34:47,601 INFO L87 Difference]: Start difference. First operand 187 states and 188 transitions. Second operand has 75 states, 75 states have (on average 1.4) internal successors, (105), 72 states have internal predecessors, (105), 23 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-05-02 12:34:52,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:34:52,104 INFO L93 Difference]: Finished difference Result 197 states and 198 transitions. [2021-05-02 12:34:52,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-05-02 12:34:52,110 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 1.4) internal successors, (105), 72 states have internal predecessors, (105), 23 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 184 [2021-05-02 12:34:52,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:34:52,110 INFO L225 Difference]: With dead ends: 197 [2021-05-02 12:34:52,110 INFO L226 Difference]: Without dead ends: 195 [2021-05-02 12:34:52,111 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3777 ImplicationChecksByTransitivity, 5128.5ms TimeCoverageRelationStatistics Valid=2409, Invalid=12597, Unknown=0, NotChecked=0, Total=15006 [2021-05-02 12:34:52,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-05-02 12:34:52,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2021-05-02 12:34:52,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 144 states have (on average 1.0138888888888888) internal successors, (146), 145 states have internal predecessors, (146), 25 states have call successors, (25), 25 states have call predecessors, (25), 24 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2021-05-02 12:34:52,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 195 transitions. [2021-05-02 12:34:52,130 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 195 transitions. Word has length 184 [2021-05-02 12:34:52,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:34:52,131 INFO L480 AbstractCegarLoop]: Abstraction has 194 states and 195 transitions. [2021-05-02 12:34:52,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 75 states, 75 states have (on average 1.4) internal successors, (105), 72 states have internal predecessors, (105), 23 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-05-02 12:34:52,131 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 195 transitions. [2021-05-02 12:34:52,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-05-02 12:34:52,132 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:34:52,132 INFO L523 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:34:52,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-05-02 12:34:52,354 INFO L428 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:34:52,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:34:52,354 INFO L82 PathProgramCache]: Analyzing trace with hash 2035427206, now seen corresponding path program 44 times [2021-05-02 12:34:52,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:34:52,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180794066] [2021-05-02 12:34:52,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:34:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:34:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-05-02 12:34:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-05-02 12:34:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-05-02 12:34:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-05-02 12:34:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-02 12:34:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-05-02 12:34:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-05-02 12:34:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-05-02 12:34:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-05-02 12:34:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-05-02 12:34:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-02 12:34:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-05-02 12:34:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-02 12:34:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-05-02 12:34:55,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-05-02 12:34:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-05-02 12:34:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-02 12:34:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-05-02 12:34:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-05-02 12:34:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-05-02 12:34:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-05-02 12:34:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-05-02 12:34:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:34:55,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 695 proven. 362 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-05-02 12:34:55,658 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:34:55,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180794066] [2021-05-02 12:34:55,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180794066] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:34:55,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167257068] [2021-05-02 12:34:55,658 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 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 12:34:55,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:34:55,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:34:55,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 83 conjunts are in the unsatisfiable core [2021-05-02 12:34:55,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:34:55,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:55,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:55,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:55,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:55,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:55,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:56,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:57,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:58,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:34:59,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:00,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:01,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:01,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:01,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:01,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:01,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:01,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:01,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:01,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:01,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:01,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:01,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:01,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 43 proven. 1077 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-05-02 12:35:01,535 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167257068] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:35:01,535 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:35:01,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 55] total 105 [2021-05-02 12:35:01,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802126888] [2021-05-02 12:35:01,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 105 states [2021-05-02 12:35:01,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:35:01,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2021-05-02 12:35:01,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=959, Invalid=9961, Unknown=0, NotChecked=0, Total=10920 [2021-05-02 12:35:01,537 INFO L87 Difference]: Start difference. First operand 194 states and 195 transitions. Second operand has 105 states, 104 states have (on average 1.5096153846153846) internal successors, (157), 102 states have internal predecessors, (157), 46 states have call successors, (49), 4 states have call predecessors, (49), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-05-02 12:35:13,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:35:13,745 INFO L93 Difference]: Finished difference Result 286 states and 311 transitions. [2021-05-02 12:35:13,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-05-02 12:35:13,746 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 104 states have (on average 1.5096153846153846) internal successors, (157), 102 states have internal predecessors, (157), 46 states have call successors, (49), 4 states have call predecessors, (49), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Word has length 191 [2021-05-02 12:35:13,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:35:13,747 INFO L225 Difference]: With dead ends: 286 [2021-05-02 12:35:13,747 INFO L226 Difference]: Without dead ends: 203 [2021-05-02 12:35:13,749 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7145 ImplicationChecksByTransitivity, 14745.7ms TimeCoverageRelationStatistics Valid=2217, Invalid=30003, Unknown=0, NotChecked=0, Total=32220 [2021-05-02 12:35:13,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-05-02 12:35:13,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 195. [2021-05-02 12:35:13,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 145 states have (on average 1.013793103448276) internal successors, (147), 146 states have internal predecessors, (147), 25 states have call successors, (25), 25 states have call predecessors, (25), 24 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2021-05-02 12:35:13,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 196 transitions. [2021-05-02 12:35:13,779 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 196 transitions. Word has length 191 [2021-05-02 12:35:13,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:35:13,779 INFO L480 AbstractCegarLoop]: Abstraction has 195 states and 196 transitions. [2021-05-02 12:35:13,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 105 states, 104 states have (on average 1.5096153846153846) internal successors, (157), 102 states have internal predecessors, (157), 46 states have call successors, (49), 4 states have call predecessors, (49), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-05-02 12:35:13,780 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 196 transitions. [2021-05-02 12:35:13,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-05-02 12:35:13,780 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:35:13,781 INFO L523 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:35:13,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:35:13,994 INFO L428 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:35:13,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:35:13,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1619759954, now seen corresponding path program 45 times [2021-05-02 12:35:13,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:35:13,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197723436] [2021-05-02 12:35:13,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:35:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:35:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-05-02 12:35:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-05-02 12:35:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-05-02 12:35:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-02 12:35:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-05-02 12:35:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-02 12:35:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-05-02 12:35:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-05-02 12:35:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-05-02 12:35:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-02 12:35:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-05-02 12:35:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-05-02 12:35:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-05-02 12:35:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-02 12:35:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-05-02 12:35:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-02 12:35:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-05-02 12:35:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-05-02 12:35:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-05-02 12:35:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-05-02 12:35:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-05-02 12:35:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-02 12:35:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2005 backedges. 275 proven. 806 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-05-02 12:35:15,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:35:15,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197723436] [2021-05-02 12:35:15,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197723436] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:35:15,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272414466] [2021-05-02 12:35:15,350 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 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 12:35:15,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-05-02 12:35:15,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:35:15,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 80 conjunts are in the unsatisfiable core [2021-05-02 12:35:15,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:35:15,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:15,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:16,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:17,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2005 backedges. 44 proven. 1037 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-05-02 12:35:18,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272414466] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:35:18,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:35:18,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 51] total 78 [2021-05-02 12:35:18,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765107103] [2021-05-02 12:35:18,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states [2021-05-02 12:35:18,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:35:18,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-05-02 12:35:18,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=894, Invalid=5112, Unknown=0, NotChecked=0, Total=6006 [2021-05-02 12:35:18,010 INFO L87 Difference]: Start difference. First operand 195 states and 196 transitions. Second operand has 78 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 75 states have internal predecessors, (109), 24 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-02 12:35:23,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:35:23,200 INFO L93 Difference]: Finished difference Result 205 states and 206 transitions. [2021-05-02 12:35:23,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-05-02 12:35:23,202 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 75 states have internal predecessors, (109), 24 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 192 [2021-05-02 12:35:23,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:35:23,203 INFO L225 Difference]: With dead ends: 205 [2021-05-02 12:35:23,203 INFO L226 Difference]: Without dead ends: 203 [2021-05-02 12:35:23,204 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4099 ImplicationChecksByTransitivity, 5875.2ms TimeCoverageRelationStatistics Valid=2620, Invalid=13636, Unknown=0, NotChecked=0, Total=16256 [2021-05-02 12:35:23,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-05-02 12:35:23,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 202. [2021-05-02 12:35:23,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 150 states have (on average 1.0133333333333334) internal successors, (152), 151 states have internal predecessors, (152), 26 states have call successors, (26), 26 states have call predecessors, (26), 25 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2021-05-02 12:35:23,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 203 transitions. [2021-05-02 12:35:23,221 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 203 transitions. Word has length 192 [2021-05-02 12:35:23,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:35:23,221 INFO L480 AbstractCegarLoop]: Abstraction has 202 states and 203 transitions. [2021-05-02 12:35:23,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 78 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 75 states have internal predecessors, (109), 24 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-02 12:35:23,221 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 203 transitions. [2021-05-02 12:35:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-05-02 12:35:23,222 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:35:23,222 INFO L523 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:35:23,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-05-02 12:35:23,422 INFO L428 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:35:23,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:35:23,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1808876261, now seen corresponding path program 46 times [2021-05-02 12:35:23,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:35:23,423 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035840657] [2021-05-02 12:35:23,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:35:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:35:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-05-02 12:35:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-05-02 12:35:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-05-02 12:35:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-02 12:35:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-05-02 12:35:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-02 12:35:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-05-02 12:35:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-05-02 12:35:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-05-02 12:35:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-02 12:35:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-05-02 12:35:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-05-02 12:35:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-05-02 12:35:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-02 12:35:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-05-02 12:35:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-02 12:35:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-05-02 12:35:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-05-02 12:35:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-05-02 12:35:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-05-02 12:35:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-05-02 12:35:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-02 12:35:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-05-02 12:35:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:27,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2163 backedges. 761 proven. 390 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-05-02 12:35:27,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:35:27,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035840657] [2021-05-02 12:35:27,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035840657] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:35:27,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19878328] [2021-05-02 12:35:27,737 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 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 12:35:27,824 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:35:27,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:35:27,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 109 conjunts are in the unsatisfiable core [2021-05-02 12:35:27,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:35:27,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:27,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:27,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:27,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:28,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:29,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:30,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:31,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2163 backedges. 111 proven. 1106 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2021-05-02 12:35:31,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19878328] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:35:31,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:35:31,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 85 [2021-05-02 12:35:31,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324350101] [2021-05-02 12:35:31,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states [2021-05-02 12:35:31,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:35:31,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2021-05-02 12:35:31,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=729, Invalid=6411, Unknown=0, NotChecked=0, Total=7140 [2021-05-02 12:35:31,929 INFO L87 Difference]: Start difference. First operand 202 states and 203 transitions. Second operand has 85 states, 84 states have (on average 1.6666666666666667) internal successors, (140), 83 states have internal predecessors, (140), 48 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-05-02 12:35:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:35:40,517 INFO L93 Difference]: Finished difference Result 381 states and 386 transitions. [2021-05-02 12:35:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-05-02 12:35:40,519 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 84 states have (on average 1.6666666666666667) internal successors, (140), 83 states have internal predecessors, (140), 48 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Word has length 199 [2021-05-02 12:35:40,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:35:40,519 INFO L225 Difference]: With dead ends: 381 [2021-05-02 12:35:40,520 INFO L226 Difference]: Without dead ends: 211 [2021-05-02 12:35:40,521 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 217 SyntacticMatches, 3 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4587 ImplicationChecksByTransitivity, 11150.0ms TimeCoverageRelationStatistics Valid=1418, Invalid=18604, Unknown=0, NotChecked=0, Total=20022 [2021-05-02 12:35:40,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-05-02 12:35:40,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 203. [2021-05-02 12:35:40,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 151 states have (on average 1.0132450331125828) internal successors, (153), 152 states have internal predecessors, (153), 26 states have call successors, (26), 26 states have call predecessors, (26), 25 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2021-05-02 12:35:40,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 204 transitions. [2021-05-02 12:35:40,536 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 204 transitions. Word has length 199 [2021-05-02 12:35:40,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:35:40,537 INFO L480 AbstractCegarLoop]: Abstraction has 203 states and 204 transitions. [2021-05-02 12:35:40,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 85 states, 84 states have (on average 1.6666666666666667) internal successors, (140), 83 states have internal predecessors, (140), 48 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-05-02 12:35:40,537 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 204 transitions. [2021-05-02 12:35:40,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-05-02 12:35:40,538 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:35:40,538 INFO L523 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:35:40,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-05-02 12:35:40,760 INFO L428 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:35:40,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:35:40,760 INFO L82 PathProgramCache]: Analyzing trace with hash -889707855, now seen corresponding path program 47 times [2021-05-02 12:35:40,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:35:40,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006029228] [2021-05-02 12:35:40,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:35:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:35:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-05-02 12:35:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-05-02 12:35:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-02 12:35:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-05-02 12:35:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-05-02 12:35:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-05-02 12:35:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-02 12:35:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-05-02 12:35:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-02 12:35:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-05-02 12:35:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-05-02 12:35:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-05-02 12:35:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-05-02 12:35:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-05-02 12:35:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-02 12:35:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-05-02 12:35:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-05-02 12:35:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-05-02 12:35:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-05-02 12:35:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-05-02 12:35:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-02 12:35:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-05-02 12:35:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-05-02 12:35:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:42,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2188 backedges. 299 proven. 877 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-05-02 12:35:42,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:35:42,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006029228] [2021-05-02 12:35:42,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006029228] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:35:42,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606670773] [2021-05-02 12:35:42,396 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 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 12:35:42,491 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-05-02 12:35:42,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:35:42,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 81 conjunts are in the unsatisfiable core [2021-05-02 12:35:42,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:35:42,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:42,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:43,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:44,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:45,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2188 backedges. 46 proven. 1130 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-05-02 12:35:45,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606670773] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:35:45,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:35:45,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 53] total 81 [2021-05-02 12:35:45,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081729217] [2021-05-02 12:35:45,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 81 states [2021-05-02 12:35:45,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:35:45,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-05-02 12:35:45,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=968, Invalid=5512, Unknown=0, NotChecked=0, Total=6480 [2021-05-02 12:35:45,517 INFO L87 Difference]: Start difference. First operand 203 states and 204 transitions. Second operand has 81 states, 81 states have (on average 1.3950617283950617) internal successors, (113), 78 states have internal predecessors, (113), 25 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-05-02 12:35:52,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:35:52,412 INFO L93 Difference]: Finished difference Result 213 states and 214 transitions. [2021-05-02 12:35:52,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-05-02 12:35:52,414 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 81 states have (on average 1.3950617283950617) internal successors, (113), 78 states have internal predecessors, (113), 25 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 200 [2021-05-02 12:35:52,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:35:52,415 INFO L225 Difference]: With dead ends: 213 [2021-05-02 12:35:52,415 INFO L226 Difference]: Without dead ends: 211 [2021-05-02 12:35:52,417 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 221 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4434 ImplicationChecksByTransitivity, 7215.4ms TimeCoverageRelationStatistics Valid=2840, Invalid=14716, Unknown=0, NotChecked=0, Total=17556 [2021-05-02 12:35:52,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-05-02 12:35:52,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 210. [2021-05-02 12:35:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 156 states have (on average 1.0128205128205128) internal successors, (158), 157 states have internal predecessors, (158), 27 states have call successors, (27), 27 states have call predecessors, (27), 26 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2021-05-02 12:35:52,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 211 transitions. [2021-05-02 12:35:52,469 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 211 transitions. Word has length 200 [2021-05-02 12:35:52,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:35:52,470 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 211 transitions. [2021-05-02 12:35:52,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 81 states, 81 states have (on average 1.3950617283950617) internal successors, (113), 78 states have internal predecessors, (113), 25 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-05-02 12:35:52,471 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 211 transitions. [2021-05-02 12:35:52,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-05-02 12:35:52,472 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:35:52,472 INFO L523 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:35:52,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:35:52,705 INFO L428 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:35:52,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:35:52,705 INFO L82 PathProgramCache]: Analyzing trace with hash 75856550, now seen corresponding path program 48 times [2021-05-02 12:35:52,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:35:52,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828488741] [2021-05-02 12:35:52,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:35:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:35:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-05-02 12:35:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-05-02 12:35:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-02 12:35:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-05-02 12:35:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-05-02 12:35:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-05-02 12:35:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-02 12:35:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-05-02 12:35:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-02 12:35:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-05-02 12:35:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-05-02 12:35:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-05-02 12:35:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-05-02 12:35:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-05-02 12:35:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-02 12:35:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-05-02 12:35:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-05-02 12:35:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-05-02 12:35:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-05-02 12:35:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-05-02 12:35:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-02 12:35:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-05-02 12:35:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-05-02 12:35:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:58,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-05-02 12:35:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:35:59,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2353 backedges. 830 proven. 419 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-05-02 12:35:59,006 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:35:59,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828488741] [2021-05-02 12:35:59,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828488741] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:35:59,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447090639] [2021-05-02 12:35:59,007 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 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 12:35:59,149 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-05-02 12:35:59,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:35:59,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 114 conjunts are in the unsatisfiable core [2021-05-02 12:35:59,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:35:59,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:35:59,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:00,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:01,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:02,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:03,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:04,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:05,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:06,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:07,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:08,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:08,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:08,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:08,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2353 backedges. 89 proven. 1229 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2021-05-02 12:36:08,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447090639] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:36:08,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:36:08,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 111 [2021-05-02 12:36:08,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439688884] [2021-05-02 12:36:08,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 111 states [2021-05-02 12:36:08,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:36:08,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2021-05-02 12:36:08,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=851, Invalid=11359, Unknown=0, NotChecked=0, Total=12210 [2021-05-02 12:36:08,479 INFO L87 Difference]: Start difference. First operand 210 states and 211 transitions. Second operand has 111 states, 110 states have (on average 1.5272727272727273) internal successors, (168), 109 states have internal predecessors, (168), 50 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2021-05-02 12:36:20,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:36:20,715 INFO L93 Difference]: Finished difference Result 396 states and 401 transitions. [2021-05-02 12:36:20,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-05-02 12:36:20,716 INFO L78 Accepts]: Start accepts. Automaton has has 111 states, 110 states have (on average 1.5272727272727273) internal successors, (168), 109 states have internal predecessors, (168), 50 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 207 [2021-05-02 12:36:20,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:36:20,717 INFO L225 Difference]: With dead ends: 396 [2021-05-02 12:36:20,717 INFO L226 Difference]: Without dead ends: 219 [2021-05-02 12:36:20,719 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 203 SyntacticMatches, 3 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7803 ImplicationChecksByTransitivity, 18184.8ms TimeCoverageRelationStatistics Valid=1602, Invalid=27128, Unknown=0, NotChecked=0, Total=28730 [2021-05-02 12:36:20,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-05-02 12:36:20,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 211. [2021-05-02 12:36:20,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 157 states have (on average 1.0127388535031847) internal successors, (159), 158 states have internal predecessors, (159), 27 states have call successors, (27), 27 states have call predecessors, (27), 26 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2021-05-02 12:36:20,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 212 transitions. [2021-05-02 12:36:20,736 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 212 transitions. Word has length 207 [2021-05-02 12:36:20,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:36:20,736 INFO L480 AbstractCegarLoop]: Abstraction has 211 states and 212 transitions. [2021-05-02 12:36:20,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 111 states, 110 states have (on average 1.5272727272727273) internal successors, (168), 109 states have internal predecessors, (168), 50 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2021-05-02 12:36:20,737 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 212 transitions. [2021-05-02 12:36:20,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-05-02 12:36:20,738 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:36:20,738 INFO L523 BasicCegarLoop]: trace histogram [26, 25, 25, 25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:36:20,952 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-05-02 12:36:20,953 INFO L428 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:36:20,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:36:20,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1595552142, now seen corresponding path program 49 times [2021-05-02 12:36:20,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:36:20,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455058709] [2021-05-02 12:36:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:36:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:36:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-05-02 12:36:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-02 12:36:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-05-02 12:36:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-05-02 12:36:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-05-02 12:36:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-05-02 12:36:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-05-02 12:36:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-02 12:36:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-05-02 12:36:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-05-02 12:36:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-05-02 12:36:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-05-02 12:36:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-05-02 12:36:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-02 12:36:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-05-02 12:36:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-02 12:36:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-05-02 12:36:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-05-02 12:36:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-05-02 12:36:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-02 12:36:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-05-02 12:36:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:22,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-05-02 12:36:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:23,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-05-02 12:36:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:23,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-05-02 12:36:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:23,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 324 proven. 951 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-05-02 12:36:23,006 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:36:23,006 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455058709] [2021-05-02 12:36:23,006 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455058709] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:36:23,006 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119669542] [2021-05-02 12:36:23,006 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 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 12:36:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:23,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 84 conjunts are in the unsatisfiable core [2021-05-02 12:36:23,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:36:23,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:23,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:24,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:25,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:26,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:27,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 48 proven. 1227 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-05-02 12:36:27,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119669542] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:36:27,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:36:27,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 55] total 84 [2021-05-02 12:36:27,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698009698] [2021-05-02 12:36:27,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states [2021-05-02 12:36:27,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:36:27,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-05-02 12:36:27,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1045, Invalid=5927, Unknown=0, NotChecked=0, Total=6972 [2021-05-02 12:36:27,153 INFO L87 Difference]: Start difference. First operand 211 states and 212 transitions. Second operand has 84 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 81 states have internal predecessors, (117), 26 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-05-02 12:36:34,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:36:34,265 INFO L93 Difference]: Finished difference Result 221 states and 222 transitions. [2021-05-02 12:36:34,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-05-02 12:36:34,267 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 81 states have internal predecessors, (117), 26 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 208 [2021-05-02 12:36:34,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:36:34,268 INFO L225 Difference]: With dead ends: 221 [2021-05-02 12:36:34,268 INFO L226 Difference]: Without dead ends: 219 [2021-05-02 12:36:34,270 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4782 ImplicationChecksByTransitivity, 8457.6ms TimeCoverageRelationStatistics Valid=3069, Invalid=15837, Unknown=0, NotChecked=0, Total=18906 [2021-05-02 12:36:34,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-05-02 12:36:34,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 218. [2021-05-02 12:36:34,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 162 states have (on average 1.0123456790123457) internal successors, (164), 163 states have internal predecessors, (164), 28 states have call successors, (28), 28 states have call predecessors, (28), 27 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2021-05-02 12:36:34,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 219 transitions. [2021-05-02 12:36:34,292 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 219 transitions. Word has length 208 [2021-05-02 12:36:34,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:36:34,293 INFO L480 AbstractCegarLoop]: Abstraction has 218 states and 219 transitions. [2021-05-02 12:36:34,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 84 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 81 states have internal predecessors, (117), 26 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-05-02 12:36:34,293 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 219 transitions. [2021-05-02 12:36:34,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-05-02 12:36:34,294 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:36:34,294 INFO L523 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:36:34,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:36:34,501 INFO L428 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:36:34,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:36:34,501 INFO L82 PathProgramCache]: Analyzing trace with hash -743160891, now seen corresponding path program 50 times [2021-05-02 12:36:34,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:36:34,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414855380] [2021-05-02 12:36:34,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:36:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:36:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-05-02 12:36:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-02 12:36:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-05-02 12:36:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-05-02 12:36:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-05-02 12:36:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-05-02 12:36:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-05-02 12:36:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-02 12:36:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-05-02 12:36:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-05-02 12:36:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-05-02 12:36:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-05-02 12:36:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-05-02 12:36:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-02 12:36:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-05-02 12:36:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-02 12:36:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-05-02 12:36:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-05-02 12:36:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-05-02 12:36:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-02 12:36:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-05-02 12:36:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-05-02 12:36:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-05-02 12:36:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-05-02 12:36:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-05-02 12:36:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:36:40,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2551 backedges. 902 proven. 449 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-05-02 12:36:40,972 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:36:40,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414855380] [2021-05-02 12:36:40,972 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414855380] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:36:40,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562996595] [2021-05-02 12:36:40,972 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 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 12:36:41,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:36:41,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:36:41,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 92 conjunts are in the unsatisfiable core [2021-05-02 12:36:41,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:36:41,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:41,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:42,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:43,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:44,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:44,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:44,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:44,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:44,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:44,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:44,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:44,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:44,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:44,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:45,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:46,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:47,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:48,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:49,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:50,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:36:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2551 backedges. 49 proven. 1374 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2021-05-02 12:36:51,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562996595] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:36:51,984 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:36:51,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 61] total 117 [2021-05-02 12:36:51,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903205632] [2021-05-02 12:36:51,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 117 states [2021-05-02 12:36:51,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:36:51,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2021-05-02 12:36:51,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1196, Invalid=12376, Unknown=0, NotChecked=0, Total=13572 [2021-05-02 12:36:51,986 INFO L87 Difference]: Start difference. First operand 218 states and 219 transitions. Second operand has 117 states, 116 states have (on average 1.5086206896551724) internal successors, (175), 114 states have internal predecessors, (175), 52 states have call successors, (55), 4 states have call predecessors, (55), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-05-02 12:37:15,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:15,002 INFO L93 Difference]: Finished difference Result 319 states and 347 transitions. [2021-05-02 12:37:15,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-05-02 12:37:15,004 INFO L78 Accepts]: Start accepts. Automaton has has 117 states, 116 states have (on average 1.5086206896551724) internal successors, (175), 114 states have internal predecessors, (175), 52 states have call successors, (55), 4 states have call predecessors, (55), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Word has length 215 [2021-05-02 12:37:15,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:15,005 INFO L225 Difference]: With dead ends: 319 [2021-05-02 12:37:15,005 INFO L226 Difference]: Without dead ends: 227 [2021-05-02 12:37:15,008 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8930 ImplicationChecksByTransitivity, 27329.9ms TimeCoverageRelationStatistics Valid=2730, Invalid=37470, Unknown=0, NotChecked=0, Total=40200 [2021-05-02 12:37:15,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-05-02 12:37:15,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 219. [2021-05-02 12:37:15,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 163 states have (on average 1.0122699386503067) internal successors, (165), 164 states have internal predecessors, (165), 28 states have call successors, (28), 28 states have call predecessors, (28), 27 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2021-05-02 12:37:15,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 220 transitions. [2021-05-02 12:37:15,033 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 220 transitions. Word has length 215 [2021-05-02 12:37:15,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:15,033 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 220 transitions. [2021-05-02 12:37:15,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 117 states, 116 states have (on average 1.5086206896551724) internal successors, (175), 114 states have internal predecessors, (175), 52 states have call successors, (55), 4 states have call predecessors, (55), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-05-02 12:37:15,034 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 220 transitions. [2021-05-02 12:37:15,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-05-02 12:37:15,035 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:15,035 INFO L523 BasicCegarLoop]: trace histogram [27, 26, 26, 26, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:15,252 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-05-02 12:37:15,253 INFO L428 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:15,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:15,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1721371537, now seen corresponding path program 51 times [2021-05-02 12:37:15,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:15,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882237951] [2021-05-02 12:37:15,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-02 12:37:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-05-02 12:37:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-05-02 12:37:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-05-02 12:37:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-05-02 12:37:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-05-02 12:37:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-02 12:37:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-05-02 12:37:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-02 12:37:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-05-02 12:37:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-05-02 12:37:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-05-02 12:37:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-02 12:37:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-05-02 12:37:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-05-02 12:37:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-05-02 12:37:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-02 12:37:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-05-02 12:37:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-02 12:37:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-05-02 12:37:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-05-02 12:37:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-05-02 12:37:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-05-02 12:37:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-05-02 12:37:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-02 12:37:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:17,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 350 proven. 1028 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-05-02 12:37:17,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:17,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882237951] [2021-05-02 12:37:17,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882237951] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:17,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125124677] [2021-05-02 12:37:17,957 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 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 12:37:18,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) [2021-05-02 12:37:18,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:18,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 87 conjunts are in the unsatisfiable core [2021-05-02 12:37:18,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:18,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:18,994 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 12:37:19,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:19,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:20,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:21,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:22,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 50 proven. 1328 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-05-02 12:37:22,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125124677] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:22,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:22,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 57] total 87 [2021-05-02 12:37:22,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798359006] [2021-05-02 12:37:22,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 87 states [2021-05-02 12:37:22,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:22,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-05-02 12:37:22,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1125, Invalid=6357, Unknown=0, NotChecked=0, Total=7482 [2021-05-02 12:37:22,962 INFO L87 Difference]: Start difference. First operand 219 states and 220 transitions. Second operand has 87 states, 87 states have (on average 1.3908045977011494) internal successors, (121), 84 states have internal predecessors, (121), 27 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-05-02 12:37:32,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:37:32,490 INFO L93 Difference]: Finished difference Result 229 states and 230 transitions. [2021-05-02 12:37:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-05-02 12:37:32,493 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 1.3908045977011494) internal successors, (121), 84 states have internal predecessors, (121), 27 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 216 [2021-05-02 12:37:32,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:37:32,494 INFO L225 Difference]: With dead ends: 229 [2021-05-02 12:37:32,494 INFO L226 Difference]: Without dead ends: 227 [2021-05-02 12:37:32,495 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 239 SyntacticMatches, 1 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5143 ImplicationChecksByTransitivity, 10904.1ms TimeCoverageRelationStatistics Valid=3307, Invalid=16999, Unknown=0, NotChecked=0, Total=20306 [2021-05-02 12:37:32,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-05-02 12:37:32,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 226. [2021-05-02 12:37:32,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 168 states have (on average 1.0119047619047619) internal successors, (170), 169 states have internal predecessors, (170), 29 states have call successors, (29), 29 states have call predecessors, (29), 28 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2021-05-02 12:37:32,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 227 transitions. [2021-05-02 12:37:32,520 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 227 transitions. Word has length 216 [2021-05-02 12:37:32,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:37:32,520 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 227 transitions. [2021-05-02 12:37:32,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 87 states, 87 states have (on average 1.3908045977011494) internal successors, (121), 84 states have internal predecessors, (121), 27 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-05-02 12:37:32,520 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 227 transitions. [2021-05-02 12:37:32,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-05-02 12:37:32,521 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:37:32,521 INFO L523 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:37:32,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-05-02 12:37:32,737 INFO L428 AbstractCegarLoop]: === Iteration 56 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:37:32,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:37:32,737 INFO L82 PathProgramCache]: Analyzing trace with hash 930469318, now seen corresponding path program 52 times [2021-05-02 12:37:32,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:37:32,737 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387861415] [2021-05-02 12:37:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:37:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:37:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-02 12:37:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-05-02 12:37:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-05-02 12:37:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-05-02 12:37:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-05-02 12:37:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-05-02 12:37:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-02 12:37:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-05-02 12:37:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-02 12:37:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-05-02 12:37:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-05-02 12:37:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-05-02 12:37:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-02 12:37:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-05-02 12:37:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-05-02 12:37:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-05-02 12:37:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-02 12:37:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-05-02 12:37:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-02 12:37:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-05-02 12:37:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-05-02 12:37:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-05-02 12:37:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-05-02 12:37:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-05-02 12:37:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-02 12:37:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-05-02 12:37:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:37:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 977 proven. 480 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-05-02 12:37:41,445 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:37:41,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387861415] [2021-05-02 12:37:41,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387861415] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:41,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147455563] [2021-05-02 12:37:41,446 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 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 12:37:41,533 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:37:41,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:37:41,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 121 conjunts are in the unsatisfiable core [2021-05-02 12:37:41,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:37:41,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:41,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:42,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:43,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:44,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:45,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:46,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:47,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:48,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:49,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:37:50,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 51 proven. 1481 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2021-05-02 12:37:50,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147455563] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:37:50,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:37:50,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 94 [2021-05-02 12:37:50,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688806303] [2021-05-02 12:37:50,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 94 states [2021-05-02 12:37:50,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:37:50,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-05-02 12:37:50,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=7845, Unknown=0, NotChecked=0, Total=8742 [2021-05-02 12:37:50,253 INFO L87 Difference]: Start difference. First operand 226 states and 227 transitions. Second operand has 94 states, 93 states have (on average 1.6666666666666667) internal successors, (155), 92 states have internal predecessors, (155), 54 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2021-05-02 12:38:06,743 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-05-02 12:38:06,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:06,967 INFO L93 Difference]: Finished difference Result 426 states and 431 transitions. [2021-05-02 12:38:06,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-05-02 12:38:06,970 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 1.6666666666666667) internal successors, (155), 92 states have internal predecessors, (155), 54 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Word has length 223 [2021-05-02 12:38:06,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:06,971 INFO L225 Difference]: With dead ends: 426 [2021-05-02 12:38:06,971 INFO L226 Difference]: Without dead ends: 235 [2021-05-02 12:38:06,973 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 244 SyntacticMatches, 3 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5595 ImplicationChecksByTransitivity, 21737.5ms TimeCoverageRelationStatistics Valid=1706, Invalid=22786, Unknown=0, NotChecked=0, Total=24492 [2021-05-02 12:38:06,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-05-02 12:38:06,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 227. [2021-05-02 12:38:06,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 169 states have (on average 1.0118343195266273) internal successors, (171), 170 states have internal predecessors, (171), 29 states have call successors, (29), 29 states have call predecessors, (29), 28 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2021-05-02 12:38:06,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 228 transitions. [2021-05-02 12:38:06,999 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 228 transitions. Word has length 223 [2021-05-02 12:38:06,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:06,999 INFO L480 AbstractCegarLoop]: Abstraction has 227 states and 228 transitions. [2021-05-02 12:38:07,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 94 states, 93 states have (on average 1.6666666666666667) internal successors, (155), 92 states have internal predecessors, (155), 54 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2021-05-02 12:38:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 228 transitions. [2021-05-02 12:38:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-05-02 12:38:07,001 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:07,001 INFO L523 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:07,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:38:07,217 INFO L428 AbstractCegarLoop]: === Iteration 57 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:07,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:07,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1848447378, now seen corresponding path program 53 times [2021-05-02 12:38:07,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:07,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029442449] [2021-05-02 12:38:07,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-05-02 12:38:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-02 12:38:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-05-02 12:38:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-05-02 12:38:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-05-02 12:38:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-02 12:38:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-05-02 12:38:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-05-02 12:38:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-05-02 12:38:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-02 12:38:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-05-02 12:38:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-02 12:38:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-05-02 12:38:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-05-02 12:38:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-05-02 12:38:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-05-02 12:38:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-05-02 12:38:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-02 12:38:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-05-02 12:38:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-05-02 12:38:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-05-02 12:38:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-05-02 12:38:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-05-02 12:38:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-02 12:38:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-05-02 12:38:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-05-02 12:38:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:10,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2785 backedges. 377 proven. 1108 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-05-02 12:38:10,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:10,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029442449] [2021-05-02 12:38:10,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029442449] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:10,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346882455] [2021-05-02 12:38:10,708 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 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 12:38:10,811 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 27 check-sat command(s) [2021-05-02 12:38:10,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:10,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 90 conjunts are in the unsatisfiable core [2021-05-02 12:38:10,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:10,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:10,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:10,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:10,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:11,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:12,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:13,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:14,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:15,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:16,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:17,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2785 backedges. 52 proven. 1433 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-05-02 12:38:17,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346882455] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:17,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:38:17,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 59] total 90 [2021-05-02 12:38:17,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908507544] [2021-05-02 12:38:17,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-05-02 12:38:17,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:38:17,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-05-02 12:38:17,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1208, Invalid=6802, Unknown=0, NotChecked=0, Total=8010 [2021-05-02 12:38:17,522 INFO L87 Difference]: Start difference. First operand 227 states and 228 transitions. Second operand has 90 states, 90 states have (on average 1.3888888888888888) internal successors, (125), 87 states have internal predecessors, (125), 28 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-05-02 12:38:30,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:38:30,463 INFO L93 Difference]: Finished difference Result 237 states and 238 transitions. [2021-05-02 12:38:30,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-05-02 12:38:30,467 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 90 states have (on average 1.3888888888888888) internal successors, (125), 87 states have internal predecessors, (125), 28 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Word has length 224 [2021-05-02 12:38:30,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:38:30,468 INFO L225 Difference]: With dead ends: 237 [2021-05-02 12:38:30,468 INFO L226 Difference]: Without dead ends: 235 [2021-05-02 12:38:30,469 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 248 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5517 ImplicationChecksByTransitivity, 14458.8ms TimeCoverageRelationStatistics Valid=3554, Invalid=18202, Unknown=0, NotChecked=0, Total=21756 [2021-05-02 12:38:30,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-05-02 12:38:30,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 234. [2021-05-02 12:38:30,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 174 states have (on average 1.0114942528735633) internal successors, (176), 175 states have internal predecessors, (176), 30 states have call successors, (30), 30 states have call predecessors, (30), 29 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2021-05-02 12:38:30,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 235 transitions. [2021-05-02 12:38:30,495 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 235 transitions. Word has length 224 [2021-05-02 12:38:30,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:38:30,495 INFO L480 AbstractCegarLoop]: Abstraction has 234 states and 235 transitions. [2021-05-02 12:38:30,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 90 states, 90 states have (on average 1.3888888888888888) internal successors, (125), 87 states have internal predecessors, (125), 28 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-05-02 12:38:30,496 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 235 transitions. [2021-05-02 12:38:30,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-05-02 12:38:30,497 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:38:30,497 INFO L523 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:38:30,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-05-02 12:38:30,711 INFO L428 AbstractCegarLoop]: === Iteration 58 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:38:30,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:38:30,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1015989083, now seen corresponding path program 54 times [2021-05-02 12:38:30,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:38:30,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512254827] [2021-05-02 12:38:30,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:38:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:32,714 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2021-05-02 12:38:41,290 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 17 [2021-05-02 12:38:42,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:38:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-05-02 12:38:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-02 12:38:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-05-02 12:38:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-05-02 12:38:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-05-02 12:38:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-02 12:38:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-05-02 12:38:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-05-02 12:38:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-05-02 12:38:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-02 12:38:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-05-02 12:38:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-02 12:38:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-05-02 12:38:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-05-02 12:38:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-05-02 12:38:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-05-02 12:38:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-05-02 12:38:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-02 12:38:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-05-02 12:38:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-05-02 12:38:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-05-02 12:38:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-05-02 12:38:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-05-02 12:38:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-02 12:38:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-05-02 12:38:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-05-02 12:38:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-05-02 12:38:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:38:42,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2971 backedges. 1055 proven. 512 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-05-02 12:38:42,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:38:42,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512254827] [2021-05-02 12:38:42,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512254827] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:38:42,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849970684] [2021-05-02 12:38:42,726 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 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 12:38:42,849 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2021-05-02 12:38:42,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:38:42,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 133 conjunts are in the unsatisfiable core [2021-05-02 12:38:42,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:38:50,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:50,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:50,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:50,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:50,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:50,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:50,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:50,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:51,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:51,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:51,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:51,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:51,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:51,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:52,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:53,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:54,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:55,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:56,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:57,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:57,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:57,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:57,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:57,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:57,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:57,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:57,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:57,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:57,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:57,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:57,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:58,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:38:59,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:00,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:01,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:02,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:03,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:04,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:04,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:04,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:04,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:04,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:04,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:04,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:04,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:05,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:05,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:05,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:06,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2971 backedges. 103 proven. 1614 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2021-05-02 12:39:06,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849970684] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:06,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:39:06,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 66] total 126 [2021-05-02 12:39:06,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960855314] [2021-05-02 12:39:06,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 126 states [2021-05-02 12:39:06,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:39:06,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2021-05-02 12:39:06,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1006, Invalid=14744, Unknown=0, NotChecked=0, Total=15750 [2021-05-02 12:39:06,070 INFO L87 Difference]: Start difference. First operand 234 states and 235 transitions. Second operand has 126 states, 125 states have (on average 1.496) internal successors, (187), 122 states have internal predecessors, (187), 56 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2021-05-02 12:39:07,563 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2021-05-02 12:39:12,429 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2021-05-02 12:39:13,141 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2021-05-02 12:39:15,381 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2021-05-02 12:39:15,767 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2021-05-02 12:39:18,989 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-05-02 12:39:19,922 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-05-02 12:39:20,672 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-05-02 12:39:21,219 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-05-02 12:39:33,506 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2021-05-02 12:39:34,568 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-05-02 12:39:35,694 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-05-02 12:39:37,845 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-05-02 12:39:38,997 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-05-02 12:39:40,044 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-05-02 12:39:41,081 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-05-02 12:39:43,271 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-05-02 12:39:44,446 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-05-02 12:39:46,568 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-05-02 12:39:47,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:39:47,240 INFO L93 Difference]: Finished difference Result 341 states and 371 transitions. [2021-05-02 12:39:47,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-05-02 12:39:47,244 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 125 states have (on average 1.496) internal successors, (187), 122 states have internal predecessors, (187), 56 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Word has length 231 [2021-05-02 12:39:47,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:39:47,245 INFO L225 Difference]: With dead ends: 341 [2021-05-02 12:39:47,245 INFO L226 Difference]: Without dead ends: 243 [2021-05-02 12:39:47,249 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 226 SyntacticMatches, 1 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9480 ImplicationChecksByTransitivity, 52857.6ms TimeCoverageRelationStatistics Valid=2362, Invalid=44078, Unknown=0, NotChecked=0, Total=46440 [2021-05-02 12:39:47,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-05-02 12:39:47,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 235. [2021-05-02 12:39:47,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 175 states have (on average 1.0114285714285713) internal successors, (177), 176 states have internal predecessors, (177), 30 states have call successors, (30), 30 states have call predecessors, (30), 29 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2021-05-02 12:39:47,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 236 transitions. [2021-05-02 12:39:47,277 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 236 transitions. Word has length 231 [2021-05-02 12:39:47,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:39:47,277 INFO L480 AbstractCegarLoop]: Abstraction has 235 states and 236 transitions. [2021-05-02 12:39:47,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 126 states, 125 states have (on average 1.496) internal successors, (187), 122 states have internal predecessors, (187), 56 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2021-05-02 12:39:47,278 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 236 transitions. [2021-05-02 12:39:47,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-05-02 12:39:47,279 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:39:47,279 INFO L523 BasicCegarLoop]: trace histogram [29, 28, 28, 28, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:39:47,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:39:47,502 INFO L428 AbstractCegarLoop]: === Iteration 59 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:39:47,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:39:47,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1061547121, now seen corresponding path program 55 times [2021-05-02 12:39:47,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:39:47,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549835949] [2021-05-02 12:39:47,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:39:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:39:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-05-02 12:39:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-05-02 12:39:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-02 12:39:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-05-02 12:39:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-02 12:39:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-05-02 12:39:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-05-02 12:39:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-05-02 12:39:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-05-02 12:39:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-05-02 12:39:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-02 12:39:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-05-02 12:39:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-05-02 12:39:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-05-02 12:39:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-05-02 12:39:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-05-02 12:39:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-02 12:39:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-05-02 12:39:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-05-02 12:39:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-05-02 12:39:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-05-02 12:39:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-05-02 12:39:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-02 12:39:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-05-02 12:39:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-05-02 12:39:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-05-02 12:39:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-05-02 12:39:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3000 backedges. 405 proven. 1191 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-05-02 12:39:52,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:39:52,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549835949] [2021-05-02 12:39:52,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549835949] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:39:52,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547010080] [2021-05-02 12:39:52,487 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 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 12:39:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:39:52,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 93 conjunts are in the unsatisfiable core [2021-05-02 12:39:52,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:39:52,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:52,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:52,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:52,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:52,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:52,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:53,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:54,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:55,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:56,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:57,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:58,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:39:59,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:00,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3000 backedges. 54 proven. 1542 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-05-02 12:40:01,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547010080] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:01,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:40:01,993 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 61] total 93 [2021-05-02 12:40:01,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349154402] [2021-05-02 12:40:01,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 93 states [2021-05-02 12:40:01,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:40:01,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-05-02 12:40:01,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1294, Invalid=7262, Unknown=0, NotChecked=0, Total=8556 [2021-05-02 12:40:01,994 INFO L87 Difference]: Start difference. First operand 235 states and 236 transitions. Second operand has 93 states, 93 states have (on average 1.3870967741935485) internal successors, (129), 90 states have internal predecessors, (129), 29 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-05-02 12:40:20,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:40:20,680 INFO L93 Difference]: Finished difference Result 245 states and 246 transitions. [2021-05-02 12:40:20,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-05-02 12:40:20,686 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 93 states have (on average 1.3870967741935485) internal successors, (129), 90 states have internal predecessors, (129), 29 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 232 [2021-05-02 12:40:20,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:40:20,687 INFO L225 Difference]: With dead ends: 245 [2021-05-02 12:40:20,687 INFO L226 Difference]: Without dead ends: 243 [2021-05-02 12:40:20,688 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5904 ImplicationChecksByTransitivity, 21207.6ms TimeCoverageRelationStatistics Valid=3810, Invalid=19446, Unknown=0, NotChecked=0, Total=23256 [2021-05-02 12:40:20,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-05-02 12:40:20,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 242. [2021-05-02 12:40:20,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 180 states have (on average 1.011111111111111) internal successors, (182), 181 states have internal predecessors, (182), 31 states have call successors, (31), 31 states have call predecessors, (31), 30 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2021-05-02 12:40:20,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 243 transitions. [2021-05-02 12:40:20,709 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 243 transitions. Word has length 232 [2021-05-02 12:40:20,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:40:20,710 INFO L480 AbstractCegarLoop]: Abstraction has 242 states and 243 transitions. [2021-05-02 12:40:20,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 93 states, 93 states have (on average 1.3870967741935485) internal successors, (129), 90 states have internal predecessors, (129), 29 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-05-02 12:40:20,710 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 243 transitions. [2021-05-02 12:40:20,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-05-02 12:40:20,711 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:40:20,711 INFO L523 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:40:20,915 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-05-02 12:40:20,916 INFO L428 AbstractCegarLoop]: === Iteration 60 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:40:20,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:40:20,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1152727270, now seen corresponding path program 56 times [2021-05-02 12:40:20,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:40:20,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743895] [2021-05-02 12:40:20,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:40:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:23,857 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2021-05-02 12:40:24,361 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:24,792 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:25,238 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:25,592 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:25,976 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:26,386 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:26,897 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:27,313 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:28,235 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:28,752 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:29,188 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:29,648 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:30,071 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:30,539 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:30,967 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:31,476 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:32,046 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:32,657 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:33,234 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:33,889 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:34,429 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:35,950 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 18 [2021-05-02 12:40:36,519 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:37,161 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 17 [2021-05-02 12:40:37,858 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:40:39,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:40:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-05-02 12:40:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-05-02 12:40:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-02 12:40:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-05-02 12:40:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-02 12:40:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-05-02 12:40:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-05-02 12:40:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-05-02 12:40:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-05-02 12:40:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-05-02 12:40:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-02 12:40:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-05-02 12:40:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-05-02 12:40:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-05-02 12:40:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-05-02 12:40:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-05-02 12:40:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-02 12:40:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-05-02 12:40:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-05-02 12:40:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-05-02 12:40:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-05-02 12:40:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-05-02 12:40:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-02 12:40:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-05-02 12:40:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-05-02 12:40:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-05-02 12:40:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-05-02 12:40:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-05-02 12:40:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:40:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3193 backedges. 1136 proven. 545 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-05-02 12:40:39,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:40:39,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743895] [2021-05-02 12:40:39,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743895] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:40:39,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40129261] [2021-05-02 12:40:39,243 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 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 12:40:39,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 12:40:39,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:40:39,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 101 conjunts are in the unsatisfiable core [2021-05-02 12:40:39,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:40:39,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:39,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:39,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:39,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:40,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:40,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:40,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:40,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:40,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:40,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:40,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:40,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:41,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:42,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:42,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:42,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:42,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:42,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:42,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:42,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:42,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:43,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:43,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:43,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:43,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:43,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:43,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:44,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:44,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:44,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:44,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:45,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:45,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:45,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:45,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:45,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:45,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:46,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:46,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:46,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:46,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:46,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:46,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:47,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:47,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:47,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:47,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:47,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:47,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:48,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:48,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:48,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:48,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:49,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:49,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:50,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:51,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:51,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:51,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:51,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:51,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:51,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:51,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:51,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:51,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:51,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:51,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:51,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:52,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:53,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:53,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:53,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:53,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:53,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:53,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:53,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:53,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:53,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:53,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:53,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:53,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:54,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:54,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:54,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:54,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:54,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:54,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:54,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:54,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:54,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:54,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:54,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:54,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:55,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:55,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:55,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:55,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:55,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:55,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:55,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:55,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:56,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:57,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:57,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:57,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:57,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:57,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:57,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:57,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:57,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:58,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:58,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:58,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:58,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:58,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:58,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:58,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:58,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:58,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:40:59,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:00,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:00,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:00,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:00,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:00,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:00,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:00,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:00,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:01,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:02,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:02,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:02,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:02,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:02,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:02,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:02,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:02,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:02,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:02,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:03,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:03,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:03,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:03,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:03,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:03,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:03,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:03,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:04,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:05,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:05,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:05,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:05,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:05,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:05,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:05,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:05,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:05,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:06,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:07,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:08,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:08,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:08,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:08,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:08,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:08,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:08,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:08,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:09,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:09,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:09,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:09,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:09,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:09,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:09,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:09,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:10,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:11,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:11,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:11,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:41:12,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3193 backedges. 55 proven. 1707 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2021-05-02 12:41:12,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40129261] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:41:12,678 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:41:12,678 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 67] total 129 [2021-05-02 12:41:12,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84352436] [2021-05-02 12:41:12,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 129 states [2021-05-02 12:41:12,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:41:12,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2021-05-02 12:41:12,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1460, Invalid=15052, Unknown=0, NotChecked=0, Total=16512 [2021-05-02 12:41:12,680 INFO L87 Difference]: Start difference. First operand 242 states and 243 transitions. Second operand has 129 states, 128 states have (on average 1.5078125) internal successors, (193), 126 states have internal predecessors, (193), 58 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2021-05-02 12:41:13,690 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2021-05-02 12:41:25,052 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2021-05-02 12:41:26,212 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-05-02 12:41:26,711 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-05-02 12:41:27,845 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-05-02 12:41:28,592 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:29,689 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:30,851 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:32,128 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:33,442 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:34,761 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:36,152 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:37,581 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:38,793 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:39,971 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:41,084 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:42,227 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:43,605 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:44,826 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:46,284 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:47,573 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:49,167 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:50,876 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:52,541 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:54,330 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:55,971 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:57,436 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:58,672 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:41:59,913 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:42:01,154 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:42:02,483 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:42:03,612 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-02 12:42:04,729 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-05-02 12:42:05,435 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-05-02 12:42:06,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:42:06,201 INFO L93 Difference]: Finished difference Result 352 states and 383 transitions. [2021-05-02 12:42:06,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-05-02 12:42:06,207 INFO L78 Accepts]: Start accepts. Automaton has has 129 states, 128 states have (on average 1.5078125) internal successors, (193), 126 states have internal predecessors, (193), 58 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Word has length 239 [2021-05-02 12:42:06,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:42:06,208 INFO L225 Difference]: With dead ends: 352 [2021-05-02 12:42:06,208 INFO L226 Difference]: Without dead ends: 251 [2021-05-02 12:42:06,212 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10913 ImplicationChecksByTransitivity, 75755.4ms TimeCoverageRelationStatistics Valid=3297, Invalid=45765, Unknown=0, NotChecked=0, Total=49062 [2021-05-02 12:42:06,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-05-02 12:42:06,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 243. [2021-05-02 12:42:06,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 181 states have (on average 1.011049723756906) internal successors, (183), 182 states have internal predecessors, (183), 31 states have call successors, (31), 31 states have call predecessors, (31), 30 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2021-05-02 12:42:06,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 244 transitions. [2021-05-02 12:42:06,261 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 244 transitions. Word has length 239 [2021-05-02 12:42:06,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:42:06,261 INFO L480 AbstractCegarLoop]: Abstraction has 243 states and 244 transitions. [2021-05-02 12:42:06,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 129 states, 128 states have (on average 1.5078125) internal successors, (193), 126 states have internal predecessors, (193), 58 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2021-05-02 12:42:06,262 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 244 transitions. [2021-05-02 12:42:06,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-05-02 12:42:06,263 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:42:06,263 INFO L523 BasicCegarLoop]: trace histogram [30, 29, 29, 29, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:42:06,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-05-02 12:42:06,482 INFO L428 AbstractCegarLoop]: === Iteration 61 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:42:06,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:42:06,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1695327054, now seen corresponding path program 57 times [2021-05-02 12:42:06,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:42:06,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320589880] [2021-05-02 12:42:06,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:42:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:42:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-05-02 12:42:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-05-02 12:42:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-05-02 12:42:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-02 12:42:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-05-02 12:42:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-05-02 12:42:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-05-02 12:42:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-05-02 12:42:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-05-02 12:42:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-02 12:42:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-05-02 12:42:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-02 12:42:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-05-02 12:42:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-05-02 12:42:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-05-02 12:42:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-02 12:42:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-05-02 12:42:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-05-02 12:42:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-05-02 12:42:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-05-02 12:42:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-05-02 12:42:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-02 12:42:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-05-02 12:42:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-05-02 12:42:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-05-02 12:42:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-05-02 12:42:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-05-02 12:42:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-02 12:42:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:13,691 INFO L134 CoverageAnalysis]: Checked inductivity of 3223 backedges. 434 proven. 1277 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-05-02 12:42:13,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:42:13,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320589880] [2021-05-02 12:42:13,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320589880] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:13,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375956202] [2021-05-02 12:42:13,692 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 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 12:42:13,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2021-05-02 12:42:13,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:42:13,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 96 conjunts are in the unsatisfiable core [2021-05-02 12:42:13,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:42:14,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:14,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:15,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:15,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:15,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:15,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:15,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:15,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:15,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:15,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:15,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:15,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:15,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:15,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:16,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:16,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:16,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:16,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:16,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:16,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:16,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:16,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:16,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:16,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:16,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:16,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:17,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:17,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:17,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:17,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:17,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:17,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:17,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:17,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:17,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:17,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:17,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:17,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:18,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:18,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:18,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:18,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:18,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:18,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:18,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:18,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:18,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:18,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:18,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:18,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:19,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:20,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:21,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:21,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:21,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:21,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:21,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:21,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:21,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:21,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:22,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:22,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:22,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:22,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:22,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:22,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:22,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:22,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:22,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:22,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:22,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:22,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:23,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:23,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:23,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:23,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:23,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:23,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:23,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:23,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:24,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:25,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:26,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:27,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:28,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:28,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:28,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:28,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:28,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:28,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:42:28,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3223 backedges. 56 proven. 1655 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-05-02 12:42:28,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375956202] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:42:28,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:42:28,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 63] total 96 [2021-05-02 12:42:28,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959419749] [2021-05-02 12:42:28,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 96 states [2021-05-02 12:42:28,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:42:28,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-05-02 12:42:28,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1383, Invalid=7737, Unknown=0, NotChecked=0, Total=9120 [2021-05-02 12:42:28,622 INFO L87 Difference]: Start difference. First operand 243 states and 244 transitions. Second operand has 96 states, 96 states have (on average 1.3854166666666667) internal successors, (133), 93 states have internal predecessors, (133), 30 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-05-02 12:42:52,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 12:42:52,934 INFO L93 Difference]: Finished difference Result 253 states and 254 transitions. [2021-05-02 12:42:52,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-05-02 12:42:52,944 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 1.3854166666666667) internal successors, (133), 93 states have internal predecessors, (133), 30 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Word has length 240 [2021-05-02 12:42:52,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 12:42:52,945 INFO L225 Difference]: With dead ends: 253 [2021-05-02 12:42:52,945 INFO L226 Difference]: Without dead ends: 251 [2021-05-02 12:42:52,946 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 266 SyntacticMatches, 1 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6304 ImplicationChecksByTransitivity, 30496.3ms TimeCoverageRelationStatistics Valid=4075, Invalid=20731, Unknown=0, NotChecked=0, Total=24806 [2021-05-02 12:42:52,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-05-02 12:42:52,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 250. [2021-05-02 12:42:52,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 186 states have (on average 1.010752688172043) internal successors, (188), 187 states have internal predecessors, (188), 32 states have call successors, (32), 32 states have call predecessors, (32), 31 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2021-05-02 12:42:52,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 251 transitions. [2021-05-02 12:42:52,979 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 251 transitions. Word has length 240 [2021-05-02 12:42:52,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 12:42:52,979 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 251 transitions. [2021-05-02 12:42:52,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 96 states, 96 states have (on average 1.3854166666666667) internal successors, (133), 93 states have internal predecessors, (133), 30 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-05-02 12:42:52,980 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 251 transitions. [2021-05-02 12:42:52,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-05-02 12:42:52,981 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 12:42:52,981 INFO L523 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 12:42:53,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,61 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 12:42:53,204 INFO L428 AbstractCegarLoop]: === Iteration 62 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 12:42:53,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 12:42:53,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1070191227, now seen corresponding path program 58 times [2021-05-02 12:42:53,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 12:42:53,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901532860] [2021-05-02 12:42:53,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 12:42:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:42:57,708 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2021-05-02 12:42:58,409 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:42:59,177 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:42:59,915 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:00,759 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:01,494 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:02,330 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:03,072 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:04,004 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:04,853 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:05,748 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:06,543 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:07,534 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:08,293 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:09,024 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:09,602 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:10,237 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:10,805 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:11,430 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:12,095 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:12,866 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:13,794 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:14,724 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:15,565 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:16,413 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:17,291 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:18,132 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 18 [2021-05-02 12:43:19,168 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:20,119 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 17 [2021-05-02 12:43:20,982 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-05-02 12:43:22,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 12:43:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:22,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-05-02 12:43:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:22,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-05-02 12:43:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:22,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-05-02 12:43:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:22,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-02 12:43:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:22,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-05-02 12:43:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:22,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-05-02 12:43:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:22,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-05-02 12:43:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:22,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-05-02 12:43:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:22,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-05-02 12:43:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-02 12:43:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-05-02 12:43:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-02 12:43:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-05-02 12:43:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-05-02 12:43:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-05-02 12:43:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-02 12:43:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-05-02 12:43:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-05-02 12:43:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-05-02 12:43:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-05-02 12:43:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-05-02 12:43:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-02 12:43:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-05-02 12:43:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-05-02 12:43:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-05-02 12:43:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-05-02 12:43:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-05-02 12:43:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-02 12:43:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-05-02 12:43:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 12:43:23,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3423 backedges. 1220 proven. 579 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-05-02 12:43:23,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 12:43:23,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901532860] [2021-05-02 12:43:23,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901532860] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:43:23,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112550108] [2021-05-02 12:43:23,191 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 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 12:43:23,298 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 12:43:23,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 12:43:23,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 133 conjunts are in the unsatisfiable core [2021-05-02 12:43:23,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 12:43:23,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:23,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:23,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:23,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:24,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:25,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:26,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:26,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:26,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:26,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:27,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:27,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:27,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:27,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:27,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:27,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:27,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:27,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:28,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:28,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:28,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:28,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:28,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:28,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:28,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:28,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:28,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:28,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:28,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:28,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:29,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:29,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:29,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:29,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:29,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:29,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:29,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:29,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:30,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:31,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:31,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:31,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:31,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:31,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:31,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:31,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:31,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:32,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:33,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:33,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:33,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:33,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:33,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:33,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:33,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:33,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:34,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:34,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:34,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:34,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:34,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:34,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:34,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:34,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:35,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:36,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:37,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:37,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:37,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:37,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:37,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:37,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:37,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:37,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:38,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:38,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:38,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:38,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:38,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:38,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:38,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:38,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:38,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:38,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:38,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:38,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:39,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:39,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:39,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:39,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:39,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:39,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:39,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:39,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:39,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:39,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:39,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:39,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:40,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:40,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:40,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:40,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:40,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:40,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:40,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:40,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:41,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:41,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:41,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:41,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:41,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:41,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:41,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:41,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:42,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:42,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:42,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:42,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:42,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:42,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:42,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:42,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:43,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:44,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:44,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:44,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:44,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:44,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:44,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:44,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:44,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:45,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:46,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:46,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:46,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:46,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:46,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:46,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:46,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:46,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:47,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:47,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:47,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:47,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:47,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:47,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:47,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:47,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:48,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:49,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 12:43:50,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3423 backedges. 57 proven. 1826 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2021-05-02 12:43:50,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112550108] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 12:43:50,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 12:43:50,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 103 [2021-05-02 12:43:50,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472481538] [2021-05-02 12:43:50,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 103 states [2021-05-02 12:43:50,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 12:43:50,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2021-05-02 12:43:50,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1083, Invalid=9423, Unknown=0, NotChecked=0, Total=10506 [2021-05-02 12:43:50,623 INFO L87 Difference]: Start difference. First operand 250 states and 251 transitions. Second operand has 103 states, 102 states have (on average 1.6666666666666667) internal successors, (170), 101 states have internal predecessors, (170), 60 states have call successors, (63), 4 states have call predecessors, (63), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2021-05-02 12:43:51,731 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-05-02 12:43:52,186 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:43:53,104 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:43:53,992 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:43:54,473 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:43:54,953 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:43:55,491 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:43:56,008 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:43:56,543 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:43:57,069 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:43:57,643 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:43:58,173 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:43:58,651 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:44:05,058 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:44:06,280 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2021-05-02 12:44:07,663 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-05-02 12:44:08,192 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:44:12,689 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:44:13,895 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:44:16,137 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:44:26,528 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:44:30,352 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:44:34,484 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:44:35,941 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 12:44:38,892 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 35