/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/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/in-de20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 11:42:40,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 11:42:41,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 11:42:41,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-06 11:42:41,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 11:42:41,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 11:42:41,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 11:42:41,092 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-06 11:42:41,104 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 11:42:41,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 11:42:41,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 11:42:41,107 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 11:42:41,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 11:42:41,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 11:42:41,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 11:42:41,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 11:42:41,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 11:42:41,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 11:42:41,122 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 11:42:41,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 11:42:41,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 11:42:41,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 11:42:41,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 11:42:41,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 11:42:41,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 11:42:41,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 11:42:41,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 11:42:41,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 11:42:41,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-06 11:42:41,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-06 11:42:41,123 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-06 11:42:41,124 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 11:42:41,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 11:42:41,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 11:42:41,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 11:42:41,420 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 11:42:41,429 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 11:42:41,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/in-de20.c [2021-05-06 11:42:41,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c59ef137/2093482597fd48538d335bcd7866db47/FLAG9979ec454 [2021-05-06 11:42:41,946 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 11:42:41,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de20.c [2021-05-06 11:42:41,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c59ef137/2093482597fd48538d335bcd7866db47/FLAG9979ec454 [2021-05-06 11:42:41,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c59ef137/2093482597fd48538d335bcd7866db47 [2021-05-06 11:42:41,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 11:42:41,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-06 11:42:41,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 11:42:41,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 11:42:41,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 11:42:41,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:42:41" (1/1) ... [2021-05-06 11:42:41,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e11e4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:42:41, skipping insertion in model container [2021-05-06 11:42:41,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:42:41" (1/1) ... [2021-05-06 11:42:41,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 11:42:41,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 11:42:42,103 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de20.c[368,381] [2021-05-06 11:42:42,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:42:42,125 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 11:42:42,138 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de20.c[368,381] [2021-05-06 11:42:42,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:42:42,187 INFO L208 MainTranslator]: Completed translation [2021-05-06 11:42:42,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:42:42 WrapperNode [2021-05-06 11:42:42,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 11:42:42,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 11:42:42,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 11:42:42,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 11:42:42,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:42:42" (1/1) ... [2021-05-06 11:42:42,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:42:42" (1/1) ... [2021-05-06 11:42:42,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:42:42" (1/1) ... [2021-05-06 11:42:42,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:42:42" (1/1) ... [2021-05-06 11:42:42,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:42:42" (1/1) ... [2021-05-06 11:42:42,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:42:42" (1/1) ... [2021-05-06 11:42:42,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:42:42" (1/1) ... [2021-05-06 11:42:42,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 11:42:42,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 11:42:42,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 11:42:42,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 11:42:42,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:42:42" (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 [2021-05-06 11:42:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 11:42:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 11:42:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 11:42:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 11:42:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 11:42:42,317 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 11:42:42,317 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 11:42:42,317 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 11:42:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 11:42:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-05-06 11:42:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 11:42:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 11:42:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 11:42:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 11:42:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 11:42:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 11:42:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 11:42:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 11:42:42,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 11:42:42,611 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-05-06 11:42:42,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:42:42 BoogieIcfgContainer [2021-05-06 11:42:42,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 11:42:42,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 11:42:42,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 11:42:42,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 11:42:42,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 11:42:41" (1/3) ... [2021-05-06 11:42:42,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f26903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:42:42, skipping insertion in model container [2021-05-06 11:42:42,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:42:42" (2/3) ... [2021-05-06 11:42:42,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f26903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:42:42, skipping insertion in model container [2021-05-06 11:42:42,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:42:42" (3/3) ... [2021-05-06 11:42:42,633 INFO L111 eAbstractionObserver]: Analyzing ICFG in-de20.c [2021-05-06 11:42:42,638 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-06 11:42:42,640 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 11:42:42,673 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 11:42:42,704 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 11:42:42,704 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-06 11:42:42,704 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-06 11:42:42,704 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 11:42:42,704 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 11:42:42,704 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 11:42:42,704 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 11:42:42,704 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 11:42:42,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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) [2021-05-06 11:42:42,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-06 11:42:42,729 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:42:42,729 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:42:42,730 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:42:42,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:42:42,735 INFO L82 PathProgramCache]: Analyzing trace with hash 449096471, now seen corresponding path program 1 times [2021-05-06 11:42:42,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:42:42,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985903782] [2021-05-06 11:42:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:42:42,798 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:42:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:42:43,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:42:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:42:43,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:42:43,179 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:42:43,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985903782] [2021-05-06 11:42:43,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1985903782] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:42:43,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:42:43,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-06 11:42:43,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399252135] [2021-05-06 11:42:43,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-06 11:42:43,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:42:43,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-06 11:42:43,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-06 11:42:43,206 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-05-06 11:42:43,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:42:43,448 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2021-05-06 11:42:43,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-06 11:42:43,450 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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 13 [2021-05-06 11:42:43,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:42:43,455 INFO L225 Difference]: With dead ends: 46 [2021-05-06 11:42:43,455 INFO L226 Difference]: Without dead ends: 17 [2021-05-06 11:42:43,457 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 232.4ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-05-06 11:42:43,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-05-06 11:42:43,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-05-06 11:42:43,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:42:43,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-05-06 11:42:43,485 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13 [2021-05-06 11:42:43,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:42:43,485 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-05-06 11:42:43,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-05-06 11:42:43,485 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-05-06 11:42:43,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-06 11:42:43,486 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:42:43,486 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:42:43,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 11:42:43,486 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:42:43,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:42:43,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1071583787, now seen corresponding path program 1 times [2021-05-06 11:42:43,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:42:43,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472604269] [2021-05-06 11:42:43,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:42:43,529 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 92.4 percent of original size [2021-05-06 11:42:43,550 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:43,611 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-06 11:42:43,633 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 92.4 percent of original size 61 [2021-05-06 11:42:43,657 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:42:43,662 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-06 11:42:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:42:43,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:42:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:42:43,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:42:43,918 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:42:43,918 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472604269] [2021-05-06 11:42:43,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [472604269] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:42:43,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:42:43,919 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-06 11:42:43,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279983867] [2021-05-06 11:42:43,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-06 11:42:43,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:42:43,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-06 11:42:43,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-05-06 11:42:43,921 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2021-05-06 11:42:44,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:42:44,009 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2021-05-06 11:42:44,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-06 11:42:44,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 [2021-05-06 11:42:44,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:42:44,010 INFO L225 Difference]: With dead ends: 23 [2021-05-06 11:42:44,010 INFO L226 Difference]: Without dead ends: 15 [2021-05-06 11:42:44,011 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.8ms TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-05-06 11:42:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-06 11:42:44,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-05-06 11:42:44,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:42:44,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-05-06 11:42:44,016 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 14 [2021-05-06 11:42:44,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:42:44,016 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-05-06 11:42:44,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2021-05-06 11:42:44,016 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-05-06 11:42:44,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-06 11:42:44,017 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:42:44,017 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:42:44,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 11:42:44,017 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:42:44,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:42:44,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1025479988, now seen corresponding path program 1 times [2021-05-06 11:42:44,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:42:44,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188604046] [2021-05-06 11:42:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:42:44,030 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 92.4 percent of original size [2021-05-06 11:42:44,047 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:44,072 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-06 11:42:44,086 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 92.4 percent of original size 61 [2021-05-06 11:42:44,108 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:42:44,117 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-06 11:42:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:42:44,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:42:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:42:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:42:44,716 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:42:44,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188604046] [2021-05-06 11:42:44,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1188604046] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:42:44,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:42:44,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-06 11:42:44,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986991917] [2021-05-06 11:42:44,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-06 11:42:44,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:42:44,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-06 11:42:44,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-05-06 11:42:44,719 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 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) [2021-05-06 11:42:45,726 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-05-06 11:42:45,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:42:45,870 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2021-05-06 11:42:45,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-06 11:42:45,871 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 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 [2021-05-06 11:42:45,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:42:45,872 INFO L225 Difference]: With dead ends: 23 [2021-05-06 11:42:45,872 INFO L226 Difference]: Without dead ends: 18 [2021-05-06 11:42:45,873 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 987.9ms TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-05-06 11:42:45,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-05-06 11:42:45,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-05-06 11:42:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:42:45,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-05-06 11:42:45,879 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 14 [2021-05-06 11:42:45,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:42:45,879 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-05-06 11:42:45,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 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) [2021-05-06 11:42:45,879 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-05-06 11:42:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-06 11:42:45,880 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:42:45,880 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:42:45,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-06 11:42:45,880 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:42:45,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:42:45,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1690613482, now seen corresponding path program 1 times [2021-05-06 11:42:45,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:42:45,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862921749] [2021-05-06 11:42:45,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:42:45,890 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 92.4 percent of original size [2021-05-06 11:42:45,905 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:45,925 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-06 11:42:45,945 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 92.4 percent of original size 61 [2021-05-06 11:42:45,965 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:42:45,971 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-06 11:42:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:42:46,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:42:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:42:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:42:46,690 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:42:46,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862921749] [2021-05-06 11:42:46,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [862921749] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:42:46,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:42:46,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-06 11:42:46,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808110536] [2021-05-06 11:42:46,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-06 11:42:46,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:42:46,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-06 11:42:46,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-05-06 11:42:46,692 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 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) [2021-05-06 11:42:47,160 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2021-05-06 11:42:47,629 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 58 [2021-05-06 11:42:47,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:42:47,822 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2021-05-06 11:42:47,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-06 11:42:47,822 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 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 15 [2021-05-06 11:42:47,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:42:47,823 INFO L225 Difference]: With dead ends: 22 [2021-05-06 11:42:47,823 INFO L226 Difference]: Without dead ends: 17 [2021-05-06 11:42:47,823 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1170.6ms TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2021-05-06 11:42:47,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-05-06 11:42:47,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-05-06 11:42:47,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:42:47,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-05-06 11:42:47,829 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 15 [2021-05-06 11:42:47,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:42:47,829 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-05-06 11:42:47,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 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) [2021-05-06 11:42:47,829 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-05-06 11:42:47,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-05-06 11:42:47,830 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:42:47,830 INFO L523 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:42:47,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-06 11:42:47,830 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:42:47,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:42:47,830 INFO L82 PathProgramCache]: Analyzing trace with hash -834915316, now seen corresponding path program 2 times [2021-05-06 11:42:47,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:42:47,831 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831272334] [2021-05-06 11:42:47,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:42:47,842 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 92.4 percent of original size [2021-05-06 11:42:47,844 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:47,862 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-06 11:42:47,898 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 92.4 percent of original size 61 [2021-05-06 11:42:47,917 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:42:47,919 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-06 11:42:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:42:48,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:42:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:42:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:42:48,897 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:42:48,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831272334] [2021-05-06 11:42:48,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [831272334] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:42:48,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:42:48,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-05-06 11:42:48,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478061871] [2021-05-06 11:42:48,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-06 11:42:48,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:42:48,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-06 11:42:48,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-05-06 11:42:48,899 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-05-06 11:42:49,066 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2021-05-06 11:42:49,367 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2021-05-06 11:42:49,587 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2021-05-06 11:42:49,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:42:49,847 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-05-06 11:42:49,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-06 11:42:49,848 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 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 16 [2021-05-06 11:42:49,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:42:49,851 INFO L225 Difference]: With dead ends: 23 [2021-05-06 11:42:49,852 INFO L226 Difference]: Without dead ends: 18 [2021-05-06 11:42:49,853 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1566.8ms TimeCoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2021-05-06 11:42:49,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-05-06 11:42:49,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-05-06 11:42:49,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 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), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:42:49,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-05-06 11:42:49,865 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 16 [2021-05-06 11:42:49,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:42:49,865 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-05-06 11:42:49,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-05-06 11:42:49,865 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-05-06 11:42:49,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-06 11:42:49,865 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:42:49,865 INFO L523 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:42:49,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-06 11:42:49,866 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:42:49,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:42:49,866 INFO L82 PathProgramCache]: Analyzing trace with hash -78075946, now seen corresponding path program 3 times [2021-05-06 11:42:49,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:42:49,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825638503] [2021-05-06 11:42:49,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:42:49,878 WARN L240 tifierPushTermWalker]: treesize reduction 5, result has 92.4 percent of original size [2021-05-06 11:42:49,893 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:49,930 WARN L240 tifierPushTermWalker]: treesize reduction 14, result has 65.0 percent of original size [2021-05-06 11:42:49,934 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:49,941 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-06 11:42:49,942 WARN L245 tifierPushTermWalker]: treesize reduction 14, result has 65.0 percent of original size 26 [2021-05-06 11:42:49,943 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:49,946 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:49,947 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:49,956 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-06 11:42:49,957 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-06 11:42:49,957 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:49,974 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-06 11:42:49,975 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-06 11:42:49,976 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:49,979 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:49,988 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:49,996 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-06 11:42:49,996 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-06 11:42:49,997 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,019 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-05-06 11:42:50,020 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-06 11:42:50,021 WARN L240 tifierPushTermWalker]: treesize reduction 14, result has 75.4 percent of original size [2021-05-06 11:42:50,041 WARN L245 tifierPushTermWalker]: treesize reduction 14, result has 75.4 percent of original size 43 [2021-05-06 11:42:50,061 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-06 11:42:50,067 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,069 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,071 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,077 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-06 11:42:50,078 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-06 11:42:50,078 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,080 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,081 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,088 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-06 11:42:50,088 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-06 11:42:50,089 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,100 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-06 11:42:50,101 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-06 11:42:50,101 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,104 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,107 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,113 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-06 11:42:50,114 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-06 11:42:50,115 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,130 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-05-06 11:42:50,131 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-06 11:42:50,132 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,149 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-06 11:42:50,150 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-06 11:42:50,153 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,153 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,159 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-06 11:42:50,160 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-06 11:42:50,162 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,163 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,165 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,171 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-06 11:42:50,171 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-06 11:42:50,172 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,184 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-06 11:42:50,184 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-06 11:42:50,185 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,188 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,189 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,197 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-06 11:42:50,197 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-06 11:42:50,198 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,214 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-06 11:42:50,214 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-06 11:42:50,215 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:42:50,237 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-06 11:42:50,247 WARN L245 tifierPushTermWalker]: treesize reduction 5, result has 92.4 percent of original size 61 [2021-05-06 11:42:50,278 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:42:50,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:50,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:50,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:50,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:50,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:50,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:50,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:51,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:52,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:53,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:54,176 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 666 DAG size of output: 524 [2021-05-06 11:42:54,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:54,456 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 747 DAG size of output: 483 [2021-05-06 11:42:54,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:54,750 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 727 DAG size of output: 469 [2021-05-06 11:42:54,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:54,941 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 671 DAG size of output: 431 [2021-05-06 11:42:54,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:42:55,106 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 626 DAG size of output: 396 [2021-05-06 11:42:55,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:43:08,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:43:13,184 WARN L205 SmtUtils]: Spent 4.76 s on a formula simplification. DAG size of input: 3047 DAG size of output: 3041 [2021-05-06 11:43:13,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:43:30,314 WARN L205 SmtUtils]: Spent 16.86 s on a formula simplification. DAG size of input: 5200 DAG size of output: 2937 [2021-05-06 11:43:30,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:44:12,449 WARN L205 SmtUtils]: Spent 41.82 s on a formula simplification. DAG size of input: 7717 DAG size of output: 5632 [2021-05-06 11:44:12,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:45:04,381 WARN L205 SmtUtils]: Spent 51.35 s on a formula simplification. DAG size of input: 8531 DAG size of output: 5548 [2021-05-06 11:45:04,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:45:04,999 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1247 DAG size of output: 791 [2021-05-06 11:46:01,047 WARN L205 SmtUtils]: Spent 55.93 s on a formula simplification. DAG size of input: 8439 DAG size of output: 5477 [2021-05-06 11:46:01,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:46:52,699 WARN L205 SmtUtils]: Spent 50.98 s on a formula simplification. DAG size of input: 8351 DAG size of output: 5410 [2021-05-06 11:46:53,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:46:53,293 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 1229 DAG size of output: 780 [2021-05-06 11:47:41,753 WARN L205 SmtUtils]: Spent 48.35 s on a formula simplification. DAG size of input: 8259 DAG size of output: 5339 [2021-05-06 11:47:42,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:48:31,470 WARN L205 SmtUtils]: Spent 49.10 s on a formula simplification. DAG size of input: 8168 DAG size of output: 5269 [2021-05-06 11:48:31,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:49:21,069 WARN L205 SmtUtils]: Spent 48.98 s on a formula simplification. DAG size of input: 8076 DAG size of output: 5198 [2021-05-06 11:49:21,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:50:12,088 WARN L205 SmtUtils]: Spent 50.41 s on a formula simplification. DAG size of input: 7985 DAG size of output: 5128 [2021-05-06 11:50:12,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:50:12,832 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 1193 DAG size of output: 756 [2021-05-06 11:51:05,542 WARN L205 SmtUtils]: Spent 52.61 s on a formula simplification. DAG size of input: 7894 DAG size of output: 5058 [2021-05-06 11:51:05,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:51:53,104 WARN L205 SmtUtils]: Spent 46.95 s on a formula simplification. DAG size of input: 7802 DAG size of output: 4987 [2021-05-06 11:51:53,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:52:38,289 WARN L205 SmtUtils]: Spent 44.63 s on a formula simplification. DAG size of input: 7711 DAG size of output: 4917 [2021-05-06 11:52:38,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:53:25,288 WARN L205 SmtUtils]: Spent 46.42 s on a formula simplification. DAG size of input: 7618 DAG size of output: 4785 [2021-05-06 11:53:25,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:54:10,951 WARN L205 SmtUtils]: Spent 45.10 s on a formula simplification. DAG size of input: 7526 DAG size of output: 4715 [2021-05-06 11:54:11,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:54:11,432 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1125 DAG size of output: 642 [2021-05-06 11:54:53,112 WARN L205 SmtUtils]: Spent 41.61 s on a formula simplification. DAG size of input: 7320 DAG size of output: 4571 [2021-05-06 11:54:53,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:54:53,653 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 1147 DAG size of output: 634 [2021-05-06 11:55:34,051 WARN L205 SmtUtils]: Spent 40.30 s on a formula simplification. DAG size of input: 7154 DAG size of output: 4441 [2021-05-06 11:55:34,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:55:34,569 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 1133 DAG size of output: 626 [2021-05-06 11:56:14,901 WARN L205 SmtUtils]: Spent 40.26 s on a formula simplification. DAG size of input: 6990 DAG size of output: 4313 [2021-05-06 11:56:15,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:56:15,394 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1119 DAG size of output: 618 [2021-05-06 11:56:49,054 WARN L205 SmtUtils]: Spent 33.59 s on a formula simplification. DAG size of input: 6828 DAG size of output: 4187 [2021-05-06 11:56:49,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:56:49,516 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 610 [2021-05-06 11:57:18,241 WARN L205 SmtUtils]: Spent 28.66 s on a formula simplification. DAG size of input: 6668 DAG size of output: 4063 [2021-05-06 11:57:18,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:57:18,715 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1091 DAG size of output: 602