/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Ackermann03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 22:40:58,740 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-18 22:40:58,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 22:40:58,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 22:40:58,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 22:40:58,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 22:40:58,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 22:40:58,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 22:40:58,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 22:40:58,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 22:40:58,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 22:40:58,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 22:40:58,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 22:40:58,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 22:40:58,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 22:40:58,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 22:40:58,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 22:40:58,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 22:40:58,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 22:40:58,894 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 22:40:58,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 22:40:58,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 22:40:58,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 22:40:58,897 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 22:40:58,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 22:40:58,897 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 22:40:58,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 22:40:58,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 22:40:58,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 22:40:58,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 22:40:58,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 22:40:58,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 22:40:58,900 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 22:40:58,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 22:40:58,900 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 22:40:58,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 22:40:58,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 22:40:58,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 22:40:58,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 22:40:58,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 22:40:58,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 22:40:58,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 22:40:58,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 22:40:58,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 22:40:58,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 22:40:58,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 22:40:58,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 22:40:58,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 22:40:58,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; [2020-08-18 22:40:59,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 22:40:59,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 22:40:59,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 22:40:59,225 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 22:40:59,226 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 22:40:59,226 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann03.c [2020-08-18 22:40:59,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/231a7c9ac/aae18bf93fee4fd1b7c0edbd6667616f/FLAG8349d96dd [2020-08-18 22:40:59,733 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 22:40:59,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Ackermann03.c [2020-08-18 22:40:59,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/231a7c9ac/aae18bf93fee4fd1b7c0edbd6667616f/FLAG8349d96dd [2020-08-18 22:41:00,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/231a7c9ac/aae18bf93fee4fd1b7c0edbd6667616f [2020-08-18 22:41:00,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 22:41:00,085 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 22:41:00,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 22:41:00,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 22:41:00,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 22:41:00,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:41:00" (1/1) ... [2020-08-18 22:41:00,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c20ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:00, skipping insertion in model container [2020-08-18 22:41:00,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:41:00" (1/1) ... [2020-08-18 22:41:00,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 22:41:00,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 22:41:00,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:41:00,320 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 22:41:00,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:41:00,357 INFO L208 MainTranslator]: Completed translation [2020-08-18 22:41:00,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:00 WrapperNode [2020-08-18 22:41:00,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 22:41:00,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 22:41:00,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 22:41:00,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 22:41:00,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:00" (1/1) ... [2020-08-18 22:41:00,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:00" (1/1) ... [2020-08-18 22:41:00,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:00" (1/1) ... [2020-08-18 22:41:00,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:00" (1/1) ... [2020-08-18 22:41:00,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:00" (1/1) ... [2020-08-18 22:41:00,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:00" (1/1) ... [2020-08-18 22:41:00,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:00" (1/1) ... [2020-08-18 22:41:00,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 22:41:00,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 22:41:00,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 22:41:00,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 22:41:00,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 22:41:00,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 22:41:00,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 22:41:00,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2020-08-18 22:41:00,539 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 22:41:00,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 22:41:00,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 22:41:00,539 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2020-08-18 22:41:00,539 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 22:41:00,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 22:41:00,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 22:41:00,747 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 22:41:00,747 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-18 22:41:00,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:41:00 BoogieIcfgContainer [2020-08-18 22:41:00,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 22:41:00,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 22:41:00,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 22:41:00,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 22:41:00,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:41:00" (1/3) ... [2020-08-18 22:41:00,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4a4a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:41:00, skipping insertion in model container [2020-08-18 22:41:00,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:00" (2/3) ... [2020-08-18 22:41:00,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4a4a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:41:00, skipping insertion in model container [2020-08-18 22:41:00,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:41:00" (3/3) ... [2020-08-18 22:41:00,760 INFO L109 eAbstractionObserver]: Analyzing ICFG Ackermann03.c [2020-08-18 22:41:00,770 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 22:41:00,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 22:41:00,791 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 22:41:00,818 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 22:41:00,818 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 22:41:00,819 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 22:41:00,819 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 22:41:00,819 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 22:41:00,819 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 22:41:00,819 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 22:41:00,819 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 22:41:00,838 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-08-18 22:41:00,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-18 22:41:00,845 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:00,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:00,847 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:00,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:00,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1796234678, now seen corresponding path program 1 times [2020-08-18 22:41:00,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:00,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591974130] [2020-08-18 22:41:00,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:01,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:01,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:41:01,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591974130] [2020-08-18 22:41:01,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:41:01,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 22:41:01,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232559008] [2020-08-18 22:41:01,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 22:41:01,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:01,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 22:41:01,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:41:01,117 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-08-18 22:41:01,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:01,365 INFO L93 Difference]: Finished difference Result 55 states and 77 transitions. [2020-08-18 22:41:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 22:41:01,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-08-18 22:41:01,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:01,380 INFO L225 Difference]: With dead ends: 55 [2020-08-18 22:41:01,380 INFO L226 Difference]: Without dead ends: 28 [2020-08-18 22:41:01,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:41:01,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-08-18 22:41:01,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-08-18 22:41:01,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-08-18 22:41:01,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2020-08-18 22:41:01,452 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 15 [2020-08-18 22:41:01,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:01,452 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2020-08-18 22:41:01,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 22:41:01,453 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-08-18 22:41:01,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-18 22:41:01,456 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:01,456 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:01,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 22:41:01,457 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:01,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:01,458 INFO L82 PathProgramCache]: Analyzing trace with hash -895156504, now seen corresponding path program 1 times [2020-08-18 22:41:01,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:01,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283389321] [2020-08-18 22:41:01,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:01,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:01,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:01,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:01,613 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-18 22:41:01,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283389321] [2020-08-18 22:41:01,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:01,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-18 22:41:01,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887715764] [2020-08-18 22:41:01,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 22:41:01,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:01,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 22:41:01,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:41:01,625 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 6 states. [2020-08-18 22:41:01,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:01,807 INFO L93 Difference]: Finished difference Result 43 states and 60 transitions. [2020-08-18 22:41:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 22:41:01,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-08-18 22:41:01,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:01,811 INFO L225 Difference]: With dead ends: 43 [2020-08-18 22:41:01,811 INFO L226 Difference]: Without dead ends: 39 [2020-08-18 22:41:01,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:41:01,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-08-18 22:41:01,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-08-18 22:41:01,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-08-18 22:41:01,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 56 transitions. [2020-08-18 22:41:01,825 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 56 transitions. Word has length 22 [2020-08-18 22:41:01,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:01,826 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 56 transitions. [2020-08-18 22:41:01,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 22:41:01,826 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 56 transitions. [2020-08-18 22:41:01,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-08-18 22:41:01,828 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:01,829 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:01,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 22:41:01,829 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:01,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:01,830 INFO L82 PathProgramCache]: Analyzing trace with hash 687949058, now seen corresponding path program 2 times [2020-08-18 22:41:01,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:01,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283254209] [2020-08-18 22:41:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:01,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:01,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:01,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:01,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:01,969 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 22:41:01,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283254209] [2020-08-18 22:41:01,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:01,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-08-18 22:41:01,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371869954] [2020-08-18 22:41:01,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 22:41:01,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:01,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 22:41:01,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 22:41:01,976 INFO L87 Difference]: Start difference. First operand 39 states and 56 transitions. Second operand 4 states. [2020-08-18 22:41:02,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:02,058 INFO L93 Difference]: Finished difference Result 74 states and 133 transitions. [2020-08-18 22:41:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 22:41:02,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-08-18 22:41:02,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:02,069 INFO L225 Difference]: With dead ends: 74 [2020-08-18 22:41:02,069 INFO L226 Difference]: Without dead ends: 43 [2020-08-18 22:41:02,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:41:02,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-18 22:41:02,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-08-18 22:41:02,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-18 22:41:02,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 66 transitions. [2020-08-18 22:41:02,094 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 66 transitions. Word has length 29 [2020-08-18 22:41:02,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:02,095 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 66 transitions. [2020-08-18 22:41:02,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 22:41:02,095 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2020-08-18 22:41:02,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-08-18 22:41:02,098 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:02,098 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:02,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 22:41:02,099 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:02,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:02,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1711672813, now seen corresponding path program 1 times [2020-08-18 22:41:02,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:02,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18729840] [2020-08-18 22:41:02,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,255 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-08-18 22:41:02,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18729840] [2020-08-18 22:41:02,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:02,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 22:41:02,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347422565] [2020-08-18 22:41:02,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 22:41:02,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:02,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 22:41:02,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:41:02,259 INFO L87 Difference]: Start difference. First operand 43 states and 66 transitions. Second operand 5 states. [2020-08-18 22:41:02,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:02,365 INFO L93 Difference]: Finished difference Result 47 states and 69 transitions. [2020-08-18 22:41:02,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 22:41:02,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-08-18 22:41:02,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:02,371 INFO L225 Difference]: With dead ends: 47 [2020-08-18 22:41:02,371 INFO L226 Difference]: Without dead ends: 43 [2020-08-18 22:41:02,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:41:02,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-18 22:41:02,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-08-18 22:41:02,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-18 22:41:02,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 65 transitions. [2020-08-18 22:41:02,391 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 65 transitions. Word has length 42 [2020-08-18 22:41:02,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:02,391 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 65 transitions. [2020-08-18 22:41:02,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 22:41:02,392 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 65 transitions. [2020-08-18 22:41:02,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-08-18 22:41:02,395 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:02,395 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:02,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 22:41:02,396 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:02,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:02,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1732137516, now seen corresponding path program 2 times [2020-08-18 22:41:02,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:02,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184654688] [2020-08-18 22:41:02,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:02,799 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 54 proven. 29 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-08-18 22:41:02,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184654688] [2020-08-18 22:41:02,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:02,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-18 22:41:02,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298220077] [2020-08-18 22:41:02,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-18 22:41:02,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:02,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-18 22:41:02,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-08-18 22:41:02,803 INFO L87 Difference]: Start difference. First operand 43 states and 65 transitions. Second operand 14 states. [2020-08-18 22:41:03,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:03,696 INFO L93 Difference]: Finished difference Result 166 states and 476 transitions. [2020-08-18 22:41:03,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-18 22:41:03,697 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 62 [2020-08-18 22:41:03,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:03,705 INFO L225 Difference]: With dead ends: 166 [2020-08-18 22:41:03,706 INFO L226 Difference]: Without dead ends: 131 [2020-08-18 22:41:03,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=270, Invalid=990, Unknown=0, NotChecked=0, Total=1260 [2020-08-18 22:41:03,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-08-18 22:41:03,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 69. [2020-08-18 22:41:03,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-08-18 22:41:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 133 transitions. [2020-08-18 22:41:03,778 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 133 transitions. Word has length 62 [2020-08-18 22:41:03,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:03,779 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 133 transitions. [2020-08-18 22:41:03,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-18 22:41:03,785 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 133 transitions. [2020-08-18 22:41:03,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-08-18 22:41:03,796 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:03,797 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:03,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 22:41:03,797 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:03,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:03,798 INFO L82 PathProgramCache]: Analyzing trace with hash -599460358, now seen corresponding path program 3 times [2020-08-18 22:41:03,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:03,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311304103] [2020-08-18 22:41:03,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:03,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:03,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:03,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:03,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:03,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:03,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:03,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:03,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:03,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 22:41:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,046 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 36 proven. 62 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-08-18 22:41:04,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311304103] [2020-08-18 22:41:04,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:04,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-18 22:41:04,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827050566] [2020-08-18 22:41:04,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 22:41:04,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:04,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 22:41:04,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:41:04,052 INFO L87 Difference]: Start difference. First operand 69 states and 133 transitions. Second operand 6 states. [2020-08-18 22:41:04,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:04,151 INFO L93 Difference]: Finished difference Result 113 states and 272 transitions. [2020-08-18 22:41:04,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 22:41:04,151 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2020-08-18 22:41:04,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:04,155 INFO L225 Difference]: With dead ends: 113 [2020-08-18 22:41:04,156 INFO L226 Difference]: Without dead ends: 109 [2020-08-18 22:41:04,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:41:04,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-08-18 22:41:04,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-08-18 22:41:04,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-08-18 22:41:04,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 267 transitions. [2020-08-18 22:41:04,205 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 267 transitions. Word has length 95 [2020-08-18 22:41:04,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:04,205 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 267 transitions. [2020-08-18 22:41:04,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 22:41:04,207 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 267 transitions. [2020-08-18 22:41:04,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-08-18 22:41:04,218 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:04,218 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 19, 12, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:04,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 22:41:04,218 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:04,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:04,220 INFO L82 PathProgramCache]: Analyzing trace with hash 93748169, now seen corresponding path program 4 times [2020-08-18 22:41:04,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:04,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125429998] [2020-08-18 22:41:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 22:41:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 22:41:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-18 22:41:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 22:41:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:04,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2307 backedges. 349 proven. 666 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2020-08-18 22:41:04,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125429998] [2020-08-18 22:41:04,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:04,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 22:41:04,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263778126] [2020-08-18 22:41:04,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 22:41:04,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:04,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 22:41:04,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 22:41:04,988 INFO L87 Difference]: Start difference. First operand 109 states and 267 transitions. Second operand 9 states. [2020-08-18 22:41:05,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:05,219 INFO L93 Difference]: Finished difference Result 199 states and 592 transitions. [2020-08-18 22:41:05,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 22:41:05,220 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 214 [2020-08-18 22:41:05,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:05,223 INFO L225 Difference]: With dead ends: 199 [2020-08-18 22:41:05,223 INFO L226 Difference]: Without dead ends: 98 [2020-08-18 22:41:05,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-08-18 22:41:05,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-08-18 22:41:05,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-08-18 22:41:05,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-08-18 22:41:05,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 177 transitions. [2020-08-18 22:41:05,241 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 177 transitions. Word has length 214 [2020-08-18 22:41:05,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:05,242 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 177 transitions. [2020-08-18 22:41:05,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 22:41:05,242 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 177 transitions. [2020-08-18 22:41:05,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-08-18 22:41:05,244 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:05,244 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 9, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:05,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 22:41:05,245 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:05,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:05,245 INFO L82 PathProgramCache]: Analyzing trace with hash -2010206023, now seen corresponding path program 5 times [2020-08-18 22:41:05,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:05,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188837342] [2020-08-18 22:41:05,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-18 22:41:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:05,618 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 163 proven. 147 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2020-08-18 22:41:05,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188837342] [2020-08-18 22:41:05,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:05,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 22:41:05,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612174314] [2020-08-18 22:41:05,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 22:41:05,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:05,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 22:41:05,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-08-18 22:41:05,621 INFO L87 Difference]: Start difference. First operand 98 states and 177 transitions. Second operand 16 states. [2020-08-18 22:41:06,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:06,449 INFO L93 Difference]: Finished difference Result 254 states and 664 transitions. [2020-08-18 22:41:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-18 22:41:06,449 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 108 [2020-08-18 22:41:06,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:06,453 INFO L225 Difference]: With dead ends: 254 [2020-08-18 22:41:06,453 INFO L226 Difference]: Without dead ends: 164 [2020-08-18 22:41:06,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=382, Invalid=1424, Unknown=0, NotChecked=0, Total=1806 [2020-08-18 22:41:06,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-08-18 22:41:06,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 110. [2020-08-18 22:41:06,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-08-18 22:41:06,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 191 transitions. [2020-08-18 22:41:06,474 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 191 transitions. Word has length 108 [2020-08-18 22:41:06,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:06,474 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 191 transitions. [2020-08-18 22:41:06,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-18 22:41:06,475 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 191 transitions. [2020-08-18 22:41:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-18 22:41:06,477 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:06,477 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 11, 8, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:06,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 22:41:06,477 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:06,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:06,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1835077495, now seen corresponding path program 6 times [2020-08-18 22:41:06,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:06,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748742048] [2020-08-18 22:41:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 22:41:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 153 proven. 289 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2020-08-18 22:41:06,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748742048] [2020-08-18 22:41:06,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:06,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 22:41:06,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5532699] [2020-08-18 22:41:06,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 22:41:06,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:06,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 22:41:06,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-08-18 22:41:06,850 INFO L87 Difference]: Start difference. First operand 110 states and 191 transitions. Second operand 16 states. [2020-08-18 22:41:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:07,823 INFO L93 Difference]: Finished difference Result 298 states and 723 transitions. [2020-08-18 22:41:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-08-18 22:41:07,823 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 134 [2020-08-18 22:41:07,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:07,832 INFO L225 Difference]: With dead ends: 298 [2020-08-18 22:41:07,832 INFO L226 Difference]: Without dead ends: 187 [2020-08-18 22:41:07,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=479, Invalid=1777, Unknown=0, NotChecked=0, Total=2256 [2020-08-18 22:41:07,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-08-18 22:41:07,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 132. [2020-08-18 22:41:07,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-08-18 22:41:07,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 233 transitions. [2020-08-18 22:41:07,859 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 233 transitions. Word has length 134 [2020-08-18 22:41:07,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:07,860 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 233 transitions. [2020-08-18 22:41:07,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-18 22:41:07,861 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 233 transitions. [2020-08-18 22:41:07,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-08-18 22:41:07,864 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:07,865 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 13, 10, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:07,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 22:41:07,865 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:07,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:07,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1434361927, now seen corresponding path program 7 times [2020-08-18 22:41:07,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:07,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973909793] [2020-08-18 22:41:07,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:07,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:07,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-18 22:41:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:08,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1246 backedges. 446 proven. 274 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2020-08-18 22:41:08,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973909793] [2020-08-18 22:41:08,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:08,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-08-18 22:41:08,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811181212] [2020-08-18 22:41:08,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-18 22:41:08,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:08,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-18 22:41:08,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2020-08-18 22:41:08,538 INFO L87 Difference]: Start difference. First operand 132 states and 233 transitions. Second operand 22 states. [2020-08-18 22:41:10,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:10,947 INFO L93 Difference]: Finished difference Result 397 states and 989 transitions. [2020-08-18 22:41:10,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-08-18 22:41:10,947 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 160 [2020-08-18 22:41:10,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:10,955 INFO L225 Difference]: With dead ends: 397 [2020-08-18 22:41:10,955 INFO L226 Difference]: Without dead ends: 273 [2020-08-18 22:41:10,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1975 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1232, Invalid=6078, Unknown=0, NotChecked=0, Total=7310 [2020-08-18 22:41:10,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-08-18 22:41:10,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 167. [2020-08-18 22:41:10,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-08-18 22:41:10,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 326 transitions. [2020-08-18 22:41:10,988 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 326 transitions. Word has length 160 [2020-08-18 22:41:10,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:10,988 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 326 transitions. [2020-08-18 22:41:10,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-18 22:41:10,989 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 326 transitions. [2020-08-18 22:41:10,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-08-18 22:41:10,992 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:10,992 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 14, 11, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:10,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 22:41:10,993 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:10,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:10,993 INFO L82 PathProgramCache]: Analyzing trace with hash -66876812, now seen corresponding path program 8 times [2020-08-18 22:41:10,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:10,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518628142] [2020-08-18 22:41:10,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-18 22:41:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:11,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 503 proven. 360 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2020-08-18 22:41:11,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518628142] [2020-08-18 22:41:11,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:11,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-08-18 22:41:11,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657615576] [2020-08-18 22:41:11,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-08-18 22:41:11,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:11,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-08-18 22:41:11,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2020-08-18 22:41:11,597 INFO L87 Difference]: Start difference. First operand 167 states and 326 transitions. Second operand 23 states. [2020-08-18 22:41:13,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:13,928 INFO L93 Difference]: Finished difference Result 464 states and 1249 transitions. [2020-08-18 22:41:13,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-08-18 22:41:13,939 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 173 [2020-08-18 22:41:13,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:13,948 INFO L225 Difference]: With dead ends: 464 [2020-08-18 22:41:13,948 INFO L226 Difference]: Without dead ends: 305 [2020-08-18 22:41:13,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2344 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1399, Invalid=6973, Unknown=0, NotChecked=0, Total=8372 [2020-08-18 22:41:13,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-08-18 22:41:13,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 199. [2020-08-18 22:41:13,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-08-18 22:41:13,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 415 transitions. [2020-08-18 22:41:13,995 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 415 transitions. Word has length 173 [2020-08-18 22:41:13,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:13,995 INFO L479 AbstractCegarLoop]: Abstraction has 199 states and 415 transitions. [2020-08-18 22:41:13,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-08-18 22:41:13,995 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 415 transitions. [2020-08-18 22:41:14,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-08-18 22:41:14,000 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:14,000 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 15, 12, 11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:14,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 22:41:14,001 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:14,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:14,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1028004289, now seen corresponding path program 9 times [2020-08-18 22:41:14,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:14,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1135980020] [2020-08-18 22:41:14,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-18 22:41:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:14,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 600 proven. 156 refuted. 0 times theorem prover too weak. 985 trivial. 0 not checked. [2020-08-18 22:41:14,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1135980020] [2020-08-18 22:41:14,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:14,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-08-18 22:41:14,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503235563] [2020-08-18 22:41:14,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-08-18 22:41:14,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:14,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-08-18 22:41:14,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=550, Unknown=0, NotChecked=0, Total=600 [2020-08-18 22:41:14,959 INFO L87 Difference]: Start difference. First operand 199 states and 415 transitions. Second operand 25 states. [2020-08-18 22:41:17,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:17,929 INFO L93 Difference]: Finished difference Result 507 states and 1205 transitions. [2020-08-18 22:41:17,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-08-18 22:41:17,930 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 186 [2020-08-18 22:41:17,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:17,948 INFO L225 Difference]: With dead ends: 507 [2020-08-18 22:41:17,948 INFO L226 Difference]: Without dead ends: 495 [2020-08-18 22:41:17,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1123 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=442, Invalid=4960, Unknown=0, NotChecked=0, Total=5402 [2020-08-18 22:41:17,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-08-18 22:41:18,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 323. [2020-08-18 22:41:18,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-08-18 22:41:18,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 833 transitions. [2020-08-18 22:41:18,039 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 833 transitions. Word has length 186 [2020-08-18 22:41:18,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:18,039 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 833 transitions. [2020-08-18 22:41:18,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-08-18 22:41:18,039 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 833 transitions. [2020-08-18 22:41:18,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-08-18 22:41:18,055 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:18,055 INFO L422 BasicCegarLoop]: trace histogram [49, 49, 27, 22, 21, 21, 21, 21, 21, 21, 21, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:18,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-18 22:41:18,056 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:18,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:18,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1420714413, now seen corresponding path program 10 times [2020-08-18 22:41:18,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:18,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741335043] [2020-08-18 22:41:18,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-08-18 22:41:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:18,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-18 22:41:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:19,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5925 backedges. 703 proven. 1547 refuted. 0 times theorem prover too weak. 3675 trivial. 0 not checked. [2020-08-18 22:41:19,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741335043] [2020-08-18 22:41:19,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:19,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-08-18 22:41:19,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647663574] [2020-08-18 22:41:19,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-08-18 22:41:19,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:19,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-08-18 22:41:19,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2020-08-18 22:41:19,156 INFO L87 Difference]: Start difference. First operand 323 states and 833 transitions. Second operand 21 states. [2020-08-18 22:41:20,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:20,167 INFO L93 Difference]: Finished difference Result 778 states and 2532 transitions. [2020-08-18 22:41:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-18 22:41:20,168 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 330 [2020-08-18 22:41:20,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:20,188 INFO L225 Difference]: With dead ends: 778 [2020-08-18 22:41:20,189 INFO L226 Difference]: Without dead ends: 315 [2020-08-18 22:41:20,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=261, Invalid=1379, Unknown=0, NotChecked=0, Total=1640 [2020-08-18 22:41:20,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-08-18 22:41:20,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 304. [2020-08-18 22:41:20,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-08-18 22:41:20,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 696 transitions. [2020-08-18 22:41:20,293 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 696 transitions. Word has length 330 [2020-08-18 22:41:20,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:20,294 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 696 transitions. [2020-08-18 22:41:20,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-08-18 22:41:20,294 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 696 transitions. [2020-08-18 22:41:20,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-08-18 22:41:20,317 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:20,317 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 28, 23, 22, 22, 22, 22, 22, 22, 22, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:20,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-18 22:41:20,317 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:20,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:20,318 INFO L82 PathProgramCache]: Analyzing trace with hash -850218300, now seen corresponding path program 11 times [2020-08-18 22:41:20,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:20,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978016802] [2020-08-18 22:41:20,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:20,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-18 22:41:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-18 22:41:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:21,485 INFO L134 CoverageAnalysis]: Checked inductivity of 6432 backedges. 381 proven. 1578 refuted. 0 times theorem prover too weak. 4473 trivial. 0 not checked. [2020-08-18 22:41:21,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978016802] [2020-08-18 22:41:21,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:21,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-18 22:41:21,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738433494] [2020-08-18 22:41:21,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-18 22:41:21,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:21,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-18 22:41:21,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2020-08-18 22:41:21,490 INFO L87 Difference]: Start difference. First operand 304 states and 696 transitions. Second operand 18 states. [2020-08-18 22:41:22,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:22,274 INFO L93 Difference]: Finished difference Result 631 states and 1794 transitions. [2020-08-18 22:41:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-18 22:41:22,275 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 343 [2020-08-18 22:41:22,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:22,285 INFO L225 Difference]: With dead ends: 631 [2020-08-18 22:41:22,286 INFO L226 Difference]: Without dead ends: 335 [2020-08-18 22:41:22,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=186, Invalid=936, Unknown=0, NotChecked=0, Total=1122 [2020-08-18 22:41:22,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-08-18 22:41:22,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 319. [2020-08-18 22:41:22,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-08-18 22:41:22,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 728 transitions. [2020-08-18 22:41:22,353 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 728 transitions. Word has length 343 [2020-08-18 22:41:22,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:22,354 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 728 transitions. [2020-08-18 22:41:22,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-18 22:41:22,354 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 728 transitions. [2020-08-18 22:41:22,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2020-08-18 22:41:22,368 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:22,368 INFO L422 BasicCegarLoop]: trace histogram [54, 54, 30, 24, 23, 23, 23, 23, 23, 23, 23, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:22,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-18 22:41:22,369 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:22,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:22,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1866264711, now seen corresponding path program 12 times [2020-08-18 22:41:22,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:22,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053208434] [2020-08-18 22:41:22,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 22:41:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-08-18 22:41:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:22,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-18 22:41:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,245 INFO L134 CoverageAnalysis]: Checked inductivity of 7213 backedges. 286 proven. 1194 refuted. 0 times theorem prover too weak. 5733 trivial. 0 not checked. [2020-08-18 22:41:23,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053208434] [2020-08-18 22:41:23,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:23,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 22:41:23,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254491352] [2020-08-18 22:41:23,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 22:41:23,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:23,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 22:41:23,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-18 22:41:23,249 INFO L87 Difference]: Start difference. First operand 319 states and 728 transitions. Second operand 7 states. [2020-08-18 22:41:23,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:23,416 INFO L93 Difference]: Finished difference Result 642 states and 2047 transitions. [2020-08-18 22:41:23,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 22:41:23,416 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 363 [2020-08-18 22:41:23,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:23,428 INFO L225 Difference]: With dead ends: 642 [2020-08-18 22:41:23,428 INFO L226 Difference]: Without dead ends: 331 [2020-08-18 22:41:23,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:41:23,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-08-18 22:41:23,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 308. [2020-08-18 22:41:23,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-08-18 22:41:23,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 749 transitions. [2020-08-18 22:41:23,489 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 749 transitions. Word has length 363 [2020-08-18 22:41:23,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:23,489 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 749 transitions. [2020-08-18 22:41:23,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 22:41:23,489 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 749 transitions. [2020-08-18 22:41:23,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-08-18 22:41:23,496 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:23,496 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 16, 13, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:23,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-18 22:41:23,497 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:23,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:23,497 INFO L82 PathProgramCache]: Analyzing trace with hash -2090243986, now seen corresponding path program 13 times [2020-08-18 22:41:23,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:23,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25168501] [2020-08-18 22:41:23,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-18 22:41:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:23,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:24,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:24,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:24,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:24,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:24,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:24,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:24,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:24,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:24,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:24,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:24,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:24,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2020 backedges. 665 proven. 517 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2020-08-18 22:41:24,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25168501] [2020-08-18 22:41:24,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:24,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-08-18 22:41:24,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843944090] [2020-08-18 22:41:24,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-08-18 22:41:24,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:24,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-08-18 22:41:24,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2020-08-18 22:41:24,264 INFO L87 Difference]: Start difference. First operand 308 states and 749 transitions. Second operand 25 states. [2020-08-18 22:41:25,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:25,333 INFO L93 Difference]: Finished difference Result 669 states and 2055 transitions. [2020-08-18 22:41:25,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-08-18 22:41:25,333 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 199 [2020-08-18 22:41:25,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:25,346 INFO L225 Difference]: With dead ends: 669 [2020-08-18 22:41:25,347 INFO L226 Difference]: Without dead ends: 373 [2020-08-18 22:41:25,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=455, Invalid=2625, Unknown=0, NotChecked=0, Total=3080 [2020-08-18 22:41:25,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-08-18 22:41:25,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 344. [2020-08-18 22:41:25,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-08-18 22:41:25,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 936 transitions. [2020-08-18 22:41:25,406 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 936 transitions. Word has length 199 [2020-08-18 22:41:25,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:25,406 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 936 transitions. [2020-08-18 22:41:25,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-08-18 22:41:25,407 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 936 transitions. [2020-08-18 22:41:25,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-08-18 22:41:25,416 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:25,417 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 20, 16, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:25,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-18 22:41:25,417 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:25,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:25,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1479587327, now seen corresponding path program 14 times [2020-08-18 22:41:25,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:25,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [504286674] [2020-08-18 22:41:25,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-18 22:41:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-18 22:41:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:25,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3150 backedges. 230 proven. 817 refuted. 0 times theorem prover too weak. 2103 trivial. 0 not checked. [2020-08-18 22:41:25,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [504286674] [2020-08-18 22:41:25,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:25,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 22:41:25,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529971408] [2020-08-18 22:41:25,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 22:41:25,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:25,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 22:41:25,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-18 22:41:25,830 INFO L87 Difference]: Start difference. First operand 344 states and 936 transitions. Second operand 7 states. [2020-08-18 22:41:25,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:25,943 INFO L93 Difference]: Finished difference Result 569 states and 1715 transitions. [2020-08-18 22:41:25,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 22:41:25,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 245 [2020-08-18 22:41:25,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:25,948 INFO L225 Difference]: With dead ends: 569 [2020-08-18 22:41:25,949 INFO L226 Difference]: Without dead ends: 237 [2020-08-18 22:41:25,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:41:25,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-08-18 22:41:25,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 235. [2020-08-18 22:41:25,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-08-18 22:41:25,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 468 transitions. [2020-08-18 22:41:25,976 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 468 transitions. Word has length 245 [2020-08-18 22:41:25,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:25,976 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 468 transitions. [2020-08-18 22:41:25,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 22:41:25,977 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 468 transitions. [2020-08-18 22:41:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-08-18 22:41:25,982 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:25,982 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 23, 19, 18, 18, 18, 18, 18, 18, 18, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:25,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-18 22:41:25,982 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:25,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:25,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1239024914, now seen corresponding path program 15 times [2020-08-18 22:41:25,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:25,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704864456] [2020-08-18 22:41:25,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-18 22:41:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-18 22:41:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4329 backedges. 228 proven. 513 refuted. 0 times theorem prover too weak. 3588 trivial. 0 not checked. [2020-08-18 22:41:26,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704864456] [2020-08-18 22:41:26,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:26,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 22:41:26,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660723306] [2020-08-18 22:41:26,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 22:41:26,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:26,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 22:41:26,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:41:26,619 INFO L87 Difference]: Start difference. First operand 235 states and 468 transitions. Second operand 8 states. [2020-08-18 22:41:26,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:26,794 INFO L93 Difference]: Finished difference Result 239 states and 471 transitions. [2020-08-18 22:41:26,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 22:41:26,795 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 284 [2020-08-18 22:41:26,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:26,800 INFO L225 Difference]: With dead ends: 239 [2020-08-18 22:41:26,800 INFO L226 Difference]: Without dead ends: 235 [2020-08-18 22:41:26,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-08-18 22:41:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-08-18 22:41:26,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 223. [2020-08-18 22:41:26,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-08-18 22:41:26,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 426 transitions. [2020-08-18 22:41:26,837 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 426 transitions. Word has length 284 [2020-08-18 22:41:26,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:26,837 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 426 transitions. [2020-08-18 22:41:26,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 22:41:26,838 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 426 transitions. [2020-08-18 22:41:26,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2020-08-18 22:41:26,845 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:26,845 INFO L422 BasicCegarLoop]: trace histogram [61, 61, 34, 27, 26, 26, 26, 26, 26, 26, 26, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:26,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-18 22:41:26,846 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:26,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:26,846 INFO L82 PathProgramCache]: Analyzing trace with hash -582306584, now seen corresponding path program 16 times [2020-08-18 22:41:26,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:26,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000932027] [2020-08-18 22:41:26,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:26,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-18 22:41:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-18 22:41:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-08-18 22:41:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:27,978 INFO L134 CoverageAnalysis]: Checked inductivity of 9237 backedges. 565 proven. 2189 refuted. 0 times theorem prover too weak. 6483 trivial. 0 not checked. [2020-08-18 22:41:27,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000932027] [2020-08-18 22:41:27,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:27,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 22:41:27,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899583690] [2020-08-18 22:41:27,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 22:41:27,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:27,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 22:41:27,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 22:41:27,981 INFO L87 Difference]: Start difference. First operand 223 states and 426 transitions. Second operand 9 states. [2020-08-18 22:41:28,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:28,239 INFO L93 Difference]: Finished difference Result 376 states and 805 transitions. [2020-08-18 22:41:28,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 22:41:28,240 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 409 [2020-08-18 22:41:28,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:28,243 INFO L225 Difference]: With dead ends: 376 [2020-08-18 22:41:28,243 INFO L226 Difference]: Without dead ends: 165 [2020-08-18 22:41:28,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-08-18 22:41:28,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-08-18 22:41:28,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 164. [2020-08-18 22:41:28,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-08-18 22:41:28,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 270 transitions. [2020-08-18 22:41:28,259 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 270 transitions. Word has length 409 [2020-08-18 22:41:28,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:28,259 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 270 transitions. [2020-08-18 22:41:28,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 22:41:28,260 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 270 transitions. [2020-08-18 22:41:28,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-08-18 22:41:28,262 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:28,262 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 24, 19, 18, 18, 18, 18, 18, 18, 18, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:28,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-18 22:41:28,263 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:28,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:28,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1494765826, now seen corresponding path program 17 times [2020-08-18 22:41:28,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:28,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230179333] [2020-08-18 22:41:28,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 22:41:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:28,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-08-18 22:41:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 22:41:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:29,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4530 backedges. 677 proven. 1304 refuted. 0 times theorem prover too weak. 2549 trivial. 0 not checked. [2020-08-18 22:41:29,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230179333] [2020-08-18 22:41:29,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:29,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-08-18 22:41:29,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254689943] [2020-08-18 22:41:29,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-08-18 22:41:29,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:29,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-08-18 22:41:29,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2020-08-18 22:41:29,329 INFO L87 Difference]: Start difference. First operand 164 states and 270 transitions. Second operand 24 states. [2020-08-18 22:41:30,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:30,670 INFO L93 Difference]: Finished difference Result 343 states and 647 transitions. [2020-08-18 22:41:30,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-08-18 22:41:30,671 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 291 [2020-08-18 22:41:30,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:30,675 INFO L225 Difference]: With dead ends: 343 [2020-08-18 22:41:30,676 INFO L226 Difference]: Without dead ends: 176 [2020-08-18 22:41:30,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1021 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=738, Invalid=3684, Unknown=0, NotChecked=0, Total=4422 [2020-08-18 22:41:30,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-08-18 22:41:30,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 159. [2020-08-18 22:41:30,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-08-18 22:41:30,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 245 transitions. [2020-08-18 22:41:30,692 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 245 transitions. Word has length 291 [2020-08-18 22:41:30,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:30,692 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 245 transitions. [2020-08-18 22:41:30,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-08-18 22:41:30,693 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 245 transitions. [2020-08-18 22:41:30,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-08-18 22:41:30,695 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:30,695 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 24, 19, 18, 18, 18, 18, 18, 18, 18, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:30,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-18 22:41:30,695 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:30,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:30,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1137736678, now seen corresponding path program 18 times [2020-08-18 22:41:30,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:30,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809740253] [2020-08-18 22:41:30,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:30,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:30,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:30,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:30,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:30,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 22:41:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-08-18 22:41:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:31,375 INFO L134 CoverageAnalysis]: Checked inductivity of 4530 backedges. 623 proven. 1341 refuted. 0 times theorem prover too weak. 2566 trivial. 0 not checked. [2020-08-18 22:41:31,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809740253] [2020-08-18 22:41:31,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:31,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 22:41:31,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928092225] [2020-08-18 22:41:31,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 22:41:31,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:31,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 22:41:31,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 22:41:31,377 INFO L87 Difference]: Start difference. First operand 159 states and 245 transitions. Second operand 9 states. [2020-08-18 22:41:31,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:31,590 INFO L93 Difference]: Finished difference Result 307 states and 533 transitions. [2020-08-18 22:41:31,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 22:41:31,590 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 291 [2020-08-18 22:41:31,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:31,594 INFO L225 Difference]: With dead ends: 307 [2020-08-18 22:41:31,594 INFO L226 Difference]: Without dead ends: 160 [2020-08-18 22:41:31,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-08-18 22:41:31,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-08-18 22:41:31,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2020-08-18 22:41:31,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-08-18 22:41:31,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 218 transitions. [2020-08-18 22:41:31,607 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 218 transitions. Word has length 291 [2020-08-18 22:41:31,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:31,607 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 218 transitions. [2020-08-18 22:41:31,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 22:41:31,608 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 218 transitions. [2020-08-18 22:41:31,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1065 [2020-08-18 22:41:31,618 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:31,618 INFO L422 BasicCegarLoop]: trace histogram [161, 161, 89, 72, 71, 71, 71, 71, 71, 71, 71, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:31,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-08-18 22:41:31,619 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:31,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:31,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1792967769, now seen corresponding path program 19 times [2020-08-18 22:41:31,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:31,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332522111] [2020-08-18 22:41:31,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:32,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 22:41:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-18 22:41:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-18 22:41:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:33,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2020-08-18 22:41:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-08-18 22:41:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2020-08-18 22:41:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-18 22:41:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-18 22:41:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:34,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2020-08-18 22:41:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-08-18 22:41:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:35,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:36,265 INFO L134 CoverageAnalysis]: Checked inductivity of 65682 backedges. 3894 proven. 9341 refuted. 0 times theorem prover too weak. 52447 trivial. 0 not checked. [2020-08-18 22:41:36,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332522111] [2020-08-18 22:41:36,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:36,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-08-18 22:41:36,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412575029] [2020-08-18 22:41:36,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-08-18 22:41:36,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:36,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-08-18 22:41:36,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=801, Unknown=0, NotChecked=0, Total=930 [2020-08-18 22:41:36,268 INFO L87 Difference]: Start difference. First operand 154 states and 218 transitions. Second operand 31 states. [2020-08-18 22:41:38,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:38,490 INFO L93 Difference]: Finished difference Result 342 states and 595 transitions. [2020-08-18 22:41:38,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-08-18 22:41:38,492 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 1064 [2020-08-18 22:41:38,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:38,495 INFO L225 Difference]: With dead ends: 342 [2020-08-18 22:41:38,496 INFO L226 Difference]: Without dead ends: 197 [2020-08-18 22:41:38,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1887 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1164, Invalid=6492, Unknown=0, NotChecked=0, Total=7656 [2020-08-18 22:41:38,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-08-18 22:41:38,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 170. [2020-08-18 22:41:38,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-08-18 22:41:38,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 233 transitions. [2020-08-18 22:41:38,514 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 233 transitions. Word has length 1064 [2020-08-18 22:41:38,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:38,515 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 233 transitions. [2020-08-18 22:41:38,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-08-18 22:41:38,515 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 233 transitions. [2020-08-18 22:41:38,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1365 [2020-08-18 22:41:38,533 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:38,534 INFO L422 BasicCegarLoop]: trace histogram [207, 207, 113, 94, 93, 93, 93, 93, 93, 93, 93, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:38,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-08-18 22:41:38,534 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:38,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:38,535 INFO L82 PathProgramCache]: Analyzing trace with hash 374059961, now seen corresponding path program 20 times [2020-08-18 22:41:38,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:38,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934096191] [2020-08-18 22:41:38,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:39,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:41:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:39,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 22:41:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:40,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 22:41:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:41,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-18 22:41:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-18 22:41:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 22:41:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-08-18 22:41:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:42,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 22:41:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2020-08-18 22:41:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 22:41:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:43,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 619 [2020-08-18 22:41:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 22:41:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-18 22:41:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-18 22:41:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 22:41:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-08-18 22:41:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:44,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 22:41:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2020-08-18 22:41:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 22:41:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2020-08-18 22:41:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 22:41:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 624 [2020-08-18 22:41:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 22:41:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:41:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 22:41:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 22:41:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:41:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 22:41:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 22:41:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:45,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 22:41:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:41:47,548 INFO L134 CoverageAnalysis]: Checked inductivity of 109104 backedges. 23428 proven. 23723 refuted. 0 times theorem prover too weak. 61953 trivial. 0 not checked. [2020-08-18 22:41:47,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934096191] [2020-08-18 22:41:47,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:41:47,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-08-18 22:41:47,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823741971] [2020-08-18 22:41:47,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-08-18 22:41:47,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:41:47,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-08-18 22:41:47,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1350, Unknown=0, NotChecked=0, Total=1560 [2020-08-18 22:41:47,552 INFO L87 Difference]: Start difference. First operand 170 states and 233 transitions. Second operand 40 states. [2020-08-18 22:41:50,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:41:50,459 INFO L93 Difference]: Finished difference Result 379 states and 611 transitions. [2020-08-18 22:41:50,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-08-18 22:41:50,460 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 1364 [2020-08-18 22:41:50,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:41:50,464 INFO L225 Difference]: With dead ends: 379 [2020-08-18 22:41:50,464 INFO L226 Difference]: Without dead ends: 221 [2020-08-18 22:41:50,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3123 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1786, Invalid=10870, Unknown=0, NotChecked=0, Total=12656 [2020-08-18 22:41:50,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-08-18 22:41:50,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 185. [2020-08-18 22:41:50,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-08-18 22:41:50,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 258 transitions. [2020-08-18 22:41:50,486 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 258 transitions. Word has length 1364 [2020-08-18 22:41:50,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:41:50,487 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 258 transitions. [2020-08-18 22:41:50,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-08-18 22:41:50,488 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 258 transitions. [2020-08-18 22:41:50,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1567 [2020-08-18 22:41:50,508 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:41:50,509 INFO L422 BasicCegarLoop]: trace histogram [238, 238, 129, 109, 108, 108, 108, 108, 108, 108, 108, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:41:50,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-08-18 22:41:50,510 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:41:50,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:41:50,510 INFO L82 PathProgramCache]: Analyzing trace with hash -753676502, now seen corresponding path program 21 times [2020-08-18 22:41:50,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:41:50,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297916475] [2020-08-18 22:41:50,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:41:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat