/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:02:15,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:02:15,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:02:15,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:02:15,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:02:15,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:02:15,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:02:15,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:02:15,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:02:15,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:02:15,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:02:15,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:02:15,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:02:15,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:02:15,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:02:15,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:02:15,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:02:15,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:02:15,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:02:15,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:02:15,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:02:15,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:02:15,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:02:15,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:02:15,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:02:15,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:02:15,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:02:15,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:02:15,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:02:15,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:02:15,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:02:15,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:02:15,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:02:15,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:02:15,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:02:15,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:02:15,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:02:15,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:02:15,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:02:15,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:02:15,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:02:15,134 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 [2020-09-24 17:02:15,178 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:02:15,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:02:15,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:02:15,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:02:15,182 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:02:15,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:02:15,182 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:02:15,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:02:15,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:02:15,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:02:15,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:02:15,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:02:15,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:02:15,185 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:02:15,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:02:15,185 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:02:15,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:02:15,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:02:15,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:02:15,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:02:15,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:02:15,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:02:15,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:02:15,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:02:15,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:02:15,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:02:15,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:02:15,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:02:15,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:02:15,189 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.rcfgbuilder: Size of a code block -> SingleStatement 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 -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 17:02:15,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:02:15,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:02:15,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:02:15,660 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:02:15,660 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:02:15,662 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-24 17:02:15,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ce0fb4a9/6d6414deb23d424bb205a75d9b3e5ae5/FLAGbff774316 [2020-09-24 17:02:16,201 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:02:16,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-24 17:02:16,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ce0fb4a9/6d6414deb23d424bb205a75d9b3e5ae5/FLAGbff774316 [2020-09-24 17:02:16,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ce0fb4a9/6d6414deb23d424bb205a75d9b3e5ae5 [2020-09-24 17:02:16,586 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:02:16,592 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:02:16,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:02:16,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:02:16,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:02:16,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:02:16" (1/1) ... [2020-09-24 17:02:16,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2513b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:02:16, skipping insertion in model container [2020-09-24 17:02:16,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:02:16" (1/1) ... [2020-09-24 17:02:16,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:02:16,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:02:16,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:02:16,902 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:02:16,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:02:16,932 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:02:16,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:02:16 WrapperNode [2020-09-24 17:02:16,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:02:16,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:02:16,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:02:16,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:02:16,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:02:16" (1/1) ... [2020-09-24 17:02:16,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:02:16" (1/1) ... [2020-09-24 17:02:17,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:02:16" (1/1) ... [2020-09-24 17:02:17,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:02:16" (1/1) ... [2020-09-24 17:02:17,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:02:16" (1/1) ... [2020-09-24 17:02:17,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:02:16" (1/1) ... [2020-09-24 17:02:17,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:02:16" (1/1) ... [2020-09-24 17:02:17,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:02:17,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:02:17,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:02:17,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:02:17,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:02:16" (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 [2020-09-24 17:02:17,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:02:17,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:02:17,118 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-24 17:02:17,118 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:02:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:02:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:02:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-24 17:02:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:02:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:02:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:02:17,323 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:02:17,323 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 17:02:17,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:02:17 BoogieIcfgContainer [2020-09-24 17:02:17,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:02:17,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:02:17,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:02:17,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:02:17,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:02:16" (1/3) ... [2020-09-24 17:02:17,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61105dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:02:17, skipping insertion in model container [2020-09-24 17:02:17,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:02:16" (2/3) ... [2020-09-24 17:02:17,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61105dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:02:17, skipping insertion in model container [2020-09-24 17:02:17,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:02:17" (3/3) ... [2020-09-24 17:02:17,338 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-09-24 17:02:17,350 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:02:17,361 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:02:17,391 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:02:17,427 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:02:17,428 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:02:17,428 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:02:17,428 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:02:17,429 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:02:17,429 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:02:17,429 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:02:17,429 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:02:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-09-24 17:02:17,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-24 17:02:17,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:17,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:02:17,465 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:17,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:17,473 INFO L82 PathProgramCache]: Analyzing trace with hash 607163649, now seen corresponding path program 1 times [2020-09-24 17:02:17,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:17,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62967262] [2020-09-24 17:02:17,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:17,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:17,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:17,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 17:02:17,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:17,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-24 17:02:17,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:17,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:02:17,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:02:17,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 17:02:17,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:02:17,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:02:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:17,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:17,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:17,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:02:17,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:17,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:02:17,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:02:17,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:17,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:02:17,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:17,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:02:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:17,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:18,000 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:18,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:02:18,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:18,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 17:02:18,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:18,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:02:18,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:18,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:02:18,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:18,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:02:18,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62967262] [2020-09-24 17:02:18,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:02:18,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:02:18,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111112437] [2020-09-24 17:02:18,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:02:18,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:02:18,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:02:18,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:02:18,091 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 7 states. [2020-09-24 17:02:18,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:02:18,306 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-09-24 17:02:18,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 17:02:18,309 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-24 17:02:18,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:02:18,325 INFO L225 Difference]: With dead ends: 45 [2020-09-24 17:02:18,325 INFO L226 Difference]: Without dead ends: 26 [2020-09-24 17:02:18,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:02:18,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-24 17:02:18,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-24 17:02:18,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-24 17:02:18,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-24 17:02:18,411 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2020-09-24 17:02:18,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:02:18,412 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-24 17:02:18,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:02:18,412 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-24 17:02:18,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-24 17:02:18,416 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:18,416 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, 1, 1, 1, 1, 1] [2020-09-24 17:02:18,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:02:18,417 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:18,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:18,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1887435767, now seen corresponding path program 1 times [2020-09-24 17:02:18,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:18,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113847424] [2020-09-24 17:02:18,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:18,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:18,775 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:18,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 17:02:18,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:18,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-09-24 17:02:18,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:18,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:02:18,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:02:18,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 17:02:18,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:18,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:02:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:18,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:18,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:18,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:02:18,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:18,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:02:18,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:02:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:02:18,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:18,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:02:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:18,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:18,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:18,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:02:18,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:18,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 17:02:18,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 17:02:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:02:18,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:18,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:18,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:18,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:18,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:02:18,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:18,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 17:02:18,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:02:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:18,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:02:18,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-24 17:02:18,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 17:02:18,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113847424] [2020-09-24 17:02:18,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:02:18,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 17:02:18,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506584886] [2020-09-24 17:02:18,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:02:18,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:02:18,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:02:18,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:02:18,979 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-09-24 17:02:19,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:02:19,144 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-09-24 17:02:19,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 17:02:19,145 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-09-24 17:02:19,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:02:19,146 INFO L225 Difference]: With dead ends: 37 [2020-09-24 17:02:19,147 INFO L226 Difference]: Without dead ends: 31 [2020-09-24 17:02:19,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:02:19,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-24 17:02:19,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-24 17:02:19,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-24 17:02:19,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-09-24 17:02:19,155 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 27 [2020-09-24 17:02:19,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:02:19,156 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-09-24 17:02:19,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 17:02:19,156 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-09-24 17:02:19,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 17:02:19,157 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:19,158 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:02:19,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:02:19,158 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:19,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:19,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1929059777, now seen corresponding path program 2 times [2020-09-24 17:02:19,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:19,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719876651] [2020-09-24 17:02:19,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:19,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:19,480 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:19,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 17:02:19,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:19,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-24 17:02:19,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:02:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:02:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:02:19,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:19,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:02:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:19,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:19,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:19,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:02:19,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:19,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:02:19,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:19,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:02:19,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:19,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:02:19,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:19,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:02:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:19,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:19,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:19,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:02:19,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:19,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 17:02:19,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 17:02:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:02:19,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:19,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:19,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:19,690 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:19,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:02:19,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:19,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 17:02:19,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:19,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:02:19,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:19,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:02:19,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:19,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:19,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:19,794 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:19,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:02:19,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:19,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 17:02:19,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:19,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:02:19,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:19,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:02:19,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 17:02:19,871 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 17:02:19,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719876651] [2020-09-24 17:02:19,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:02:19,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 17:02:19,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686693910] [2020-09-24 17:02:19,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 17:02:19,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:02:19,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 17:02:19,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 17:02:19,879 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 12 states. [2020-09-24 17:02:20,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:02:20,163 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-09-24 17:02:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 17:02:20,164 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-09-24 17:02:20,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:02:20,165 INFO L225 Difference]: With dead ends: 42 [2020-09-24 17:02:20,166 INFO L226 Difference]: Without dead ends: 36 [2020-09-24 17:02:20,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-09-24 17:02:20,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-24 17:02:20,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-24 17:02:20,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 17:02:20,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-09-24 17:02:20,174 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 35 [2020-09-24 17:02:20,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:02:20,174 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-09-24 17:02:20,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 17:02:20,175 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-09-24 17:02:20,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 17:02:20,176 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:20,177 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:02:20,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:02:20,177 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:20,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:20,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1069340361, now seen corresponding path program 3 times [2020-09-24 17:02:20,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:20,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802514461] [2020-09-24 17:02:20,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:20,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:20,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:20,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 17:02:20,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:20,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368 [2020-09-24 17:02:20,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:20,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:02:20,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:02:20,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 17:02:20,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:20,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:02:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:20,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:20,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:20,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:02:20,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:20,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:02:20,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:20,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:02:20,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:20,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:02:20,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:20,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:02:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:20,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:20,657 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:20,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:02:20,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:20,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 17:02:20,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:20,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 17:02:20,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:20,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:02:20,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:20,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:20,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:20,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:20,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:02:20,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:20,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 17:02:20,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:20,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:02:20,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:20,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:02:20,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:20,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:20,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:20,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:20,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:02:20,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:20,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 17:02:20,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:20,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:02:20,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:02:20,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:20,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:20,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:20,903 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:20,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:02:20,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:20,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:02:20,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:02:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:02:20,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-24 17:02:20,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802514461] [2020-09-24 17:02:20,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:02:20,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 17:02:20,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577227612] [2020-09-24 17:02:20,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 17:02:20,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:02:20,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 17:02:20,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-24 17:02:20,951 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 14 states. [2020-09-24 17:02:21,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:02:21,308 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-24 17:02:21,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 17:02:21,308 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-09-24 17:02:21,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:02:21,310 INFO L225 Difference]: With dead ends: 47 [2020-09-24 17:02:21,310 INFO L226 Difference]: Without dead ends: 41 [2020-09-24 17:02:21,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2020-09-24 17:02:21,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-24 17:02:21,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-24 17:02:21,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-24 17:02:21,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-09-24 17:02:21,318 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 43 [2020-09-24 17:02:21,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:02:21,319 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-09-24 17:02:21,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 17:02:21,319 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-09-24 17:02:21,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 17:02:21,321 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:21,321 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:02:21,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:02:21,321 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:21,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:21,322 INFO L82 PathProgramCache]: Analyzing trace with hash -287672703, now seen corresponding path program 4 times [2020-09-24 17:02:21,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:21,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300067494] [2020-09-24 17:02:21,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:21,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:21,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:21,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:21,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 17:02:21,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:02:21,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-09-24 17:02:21,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:21,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 17:02:21,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 17:02:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 17:02:21,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:21,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:02:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:21,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:21,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:21,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:02:21,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:21,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:02:21,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:02:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:02:21,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:21,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:02:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:21,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:22,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:22,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:22,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:02:22,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:02:22,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 17:02:22,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:22,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 17:02:22,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:22,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:02:22,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:22,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:22,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:22,174 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:22,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:02:22,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:22,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 17:02:22,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:22,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:02:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:02:22,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:22,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:22,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:22,282 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:22,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:02:22,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:22,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 17:02:22,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:22,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:02:22,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:22,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:02:22,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:22,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:22,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:22,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:22,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:02:22,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:22,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 17:02:22,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:22,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:02:22,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:22,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:02:22,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:22,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:22,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:22,449 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:22,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:02:22,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:22,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:02:22,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:22,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:02:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:02:22,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:22,532 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 7 proven. 38 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-24 17:02:22,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300067494] [2020-09-24 17:02:22,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:02:22,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 17:02:22,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472149806] [2020-09-24 17:02:22,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 17:02:22,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:02:22,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 17:02:22,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2020-09-24 17:02:22,534 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 17 states. [2020-09-24 17:02:23,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:02:23,099 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-09-24 17:02:23,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 17:02:23,099 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 51 [2020-09-24 17:02:23,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:02:23,101 INFO L225 Difference]: With dead ends: 52 [2020-09-24 17:02:23,101 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 17:02:23,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 17:02:23,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 17:02:23,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-24 17:02:23,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 17:02:23,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-24 17:02:23,117 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 51 [2020-09-24 17:02:23,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:02:23,119 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-24 17:02:23,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 17:02:23,120 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-24 17:02:23,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-24 17:02:23,122 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:23,122 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:02:23,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:02:23,125 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:23,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:23,125 INFO L82 PathProgramCache]: Analyzing trace with hash 389514871, now seen corresponding path program 5 times [2020-09-24 17:02:23,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:23,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396561156] [2020-09-24 17:02:23,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:23,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:23,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:24,117 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:24,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 17:02:24,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:02:24,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 971 [2020-09-24 17:02:24,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:24,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 17:02:24,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:02:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 17:02:24,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:24,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:02:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:24,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:24,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:24,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:02:24,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:24,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:02:24,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:24,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:02:24,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:24,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:02:24,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:24,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:02:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:24,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:24,316 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:24,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:02:24,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:24,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-24 17:02:24,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:24,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 17:02:24,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:24,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 17:02:24,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:24,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:24,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:24,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:24,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:02:24,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:24,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 17:02:24,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:24,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 17:02:24,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:24,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:02:24,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:24,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:24,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:24,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:24,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:02:24,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:24,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 17:02:24,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:24,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:02:24,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:24,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:02:24,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:24,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:24,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:24,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:24,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:02:24,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:24,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 17:02:24,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:24,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:02:24,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:24,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:02:24,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:24,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:24,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:24,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:24,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:02:24,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:24,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 17:02:24,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:24,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:02:24,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:24,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:02:24,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:24,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:24,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:24,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:24,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:02:24,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:24,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:02:24,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:24,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:02:24,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:24,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:02:24,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:25,016 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 15 proven. 60 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-24 17:02:25,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396561156] [2020-09-24 17:02:25,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:02:25,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-24 17:02:25,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735590412] [2020-09-24 17:02:25,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 17:02:25,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:02:25,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 17:02:25,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-09-24 17:02:25,022 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 18 states. [2020-09-24 17:02:25,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:02:25,610 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2020-09-24 17:02:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 17:02:25,611 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2020-09-24 17:02:25,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:02:25,614 INFO L225 Difference]: With dead ends: 57 [2020-09-24 17:02:25,614 INFO L226 Difference]: Without dead ends: 51 [2020-09-24 17:02:25,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=1119, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 17:02:25,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-24 17:02:25,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-24 17:02:25,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-24 17:02:25,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-09-24 17:02:25,624 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 59 [2020-09-24 17:02:25,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:02:25,624 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-09-24 17:02:25,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 17:02:25,625 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-09-24 17:02:25,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-24 17:02:25,626 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:25,626 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:02:25,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 17:02:25,627 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:25,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:25,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1451925313, now seen corresponding path program 6 times [2020-09-24 17:02:25,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:25,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374274344] [2020-09-24 17:02:25,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:25,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:25,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:27,161 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:27,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 17:02:27,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:02:27,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1516 [2020-09-24 17:02:27,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 17:02:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:02:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 17:02:27,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:27,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:02:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:27,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:27,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:27,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:02:27,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:27,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:02:27,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:27,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:02:27,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:27,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:02:27,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:27,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:02:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:27,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:27,398 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:27,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:02:27,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:27,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-24 17:02:27,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:27,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 17:02:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 17:02:27,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:27,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:27,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:27,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:27,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:02:27,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:27,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 17:02:27,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 17:02:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 17:02:27,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:27,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:27,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:27,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:27,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:02:27,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:27,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 17:02:27,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 17:02:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:02:27,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:27,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:27,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:27,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:27,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:02:27,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:27,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 17:02:27,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:02:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:27,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:02:27,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:27,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:27,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:27,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:27,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:02:27,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:27,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 17:02:27,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:27,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:02:27,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:27,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:02:27,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:28,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:28,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:28,031 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:28,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:02:28,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:28,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 17:02:28,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:02:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:02:28,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:28,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:28,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:28,095 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:28,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:02:28,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:28,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 17:02:28,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:28,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:02:28,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:28,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:02:28,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:28,171 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 10 proven. 98 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-09-24 17:02:28,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374274344] [2020-09-24 17:02:28,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:02:28,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-24 17:02:28,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503495807] [2020-09-24 17:02:28,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-24 17:02:28,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:02:28,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-24 17:02:28,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2020-09-24 17:02:28,174 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 20 states. [2020-09-24 17:02:28,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:02:28,909 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2020-09-24 17:02:28,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 17:02:28,910 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 67 [2020-09-24 17:02:28,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:02:28,914 INFO L225 Difference]: With dead ends: 62 [2020-09-24 17:02:28,915 INFO L226 Difference]: Without dead ends: 56 [2020-09-24 17:02:28,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=163, Invalid=1477, Unknown=0, NotChecked=0, Total=1640 [2020-09-24 17:02:28,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-24 17:02:28,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-24 17:02:28,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-24 17:02:28,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-09-24 17:02:28,930 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 67 [2020-09-24 17:02:28,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:02:28,931 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-09-24 17:02:28,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-24 17:02:28,931 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-09-24 17:02:28,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 17:02:28,933 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:28,933 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:02:28,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 17:02:28,934 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:28,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:28,934 INFO L82 PathProgramCache]: Analyzing trace with hash -2078207049, now seen corresponding path program 7 times [2020-09-24 17:02:28,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:28,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165348597] [2020-09-24 17:02:28,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:28,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:29,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:30,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:30,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 17:02:30,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:02:30,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1645 [2020-09-24 17:02:30,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 17:02:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:02:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 17:02:30,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:30,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:02:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:30,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:30,646 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:30,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:02:30,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:30,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:02:30,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:30,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:02:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:30,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:02:30,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:30,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:02:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:30,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:30,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:30,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:02:30,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:30,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-24 17:02:30,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:30,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-24 17:02:30,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:30,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 17:02:30,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:30,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:30,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:31,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:31,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:02:31,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:31,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-24 17:02:31,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:31,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 17:02:31,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:31,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 17:02:31,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:31,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:31,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:31,279 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:31,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:02:31,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:31,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 17:02:31,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:31,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 17:02:31,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:31,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 17:02:31,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:31,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:31,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:31,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:31,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:02:31,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:31,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 17:02:31,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:31,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 17:02:31,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:31,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:02:31,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:31,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:31,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:31,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:31,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:02:31,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:31,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 17:02:31,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:31,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:02:31,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:31,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:02:31,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:31,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:31,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:31,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:31,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:02:31,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:31,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 17:02:31,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:02:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:02:31,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:31,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:31,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:31,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:31,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:02:31,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:31,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 17:02:31,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:02:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:02:31,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:31,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:31,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:31,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:31,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:02:31,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:31,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 17:02:31,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:31,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:02:31,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:31,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:02:31,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:31,936 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 18 proven. 129 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-24 17:02:31,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165348597] [2020-09-24 17:02:31,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:02:31,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-24 17:02:31,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536977347] [2020-09-24 17:02:31,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-24 17:02:31,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:02:31,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-24 17:02:31,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-09-24 17:02:31,939 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 22 states. [2020-09-24 17:02:32,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:02:32,774 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-24 17:02:32,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 17:02:32,774 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 75 [2020-09-24 17:02:32,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:02:32,776 INFO L225 Difference]: With dead ends: 67 [2020-09-24 17:02:32,776 INFO L226 Difference]: Without dead ends: 61 [2020-09-24 17:02:32,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=185, Invalid=1885, Unknown=0, NotChecked=0, Total=2070 [2020-09-24 17:02:32,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-24 17:02:32,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-09-24 17:02:32,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-24 17:02:32,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2020-09-24 17:02:32,794 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 75 [2020-09-24 17:02:32,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:02:32,794 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2020-09-24 17:02:32,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-24 17:02:32,796 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-09-24 17:02:32,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-24 17:02:32,800 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:32,800 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:02:32,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 17:02:32,800 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:32,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:32,801 INFO L82 PathProgramCache]: Analyzing trace with hash 768055297, now seen corresponding path program 8 times [2020-09-24 17:02:32,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:32,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [354774263] [2020-09-24 17:02:32,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:32,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:33,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:34,774 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:34,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-24 17:02:34,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:02:34,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1953 [2020-09-24 17:02:34,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:34,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 17:02:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 17:02:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 17:02:34,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:34,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:02:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:34,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:34,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:34,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:02:34,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:34,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:02:34,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:02:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:02:34,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:34,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:02:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:34,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:35,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:35,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:35,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 17:02:35,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:02:35,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-09-24 17:02:35,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:35,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-24 17:02:35,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 17:02:35,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:35,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:35,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:35,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:35,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:02:35,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:35,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-24 17:02:35,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:35,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 17:02:35,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:35,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 17:02:35,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:35,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:35,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:35,926 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:35,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:02:35,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:35,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-24 17:02:35,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 17:02:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 17:02:35,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:35,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:35,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:36,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:36,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:02:36,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:36,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 17:02:36,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:36,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 17:02:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 17:02:36,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:36,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:36,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:36,253 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:36,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:02:36,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:36,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 17:02:36,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 17:02:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:02:36,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:36,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:36,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:36,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:36,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:02:36,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:36,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 17:02:36,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:36,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:02:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:02:36,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:36,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:36,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:36,562 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:36,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:02:36,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:36,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 17:02:36,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:02:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:02:36,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:36,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:36,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:36,702 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:36,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:02:36,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:36,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 17:02:36,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:36,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:02:36,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:36,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:02:36,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:36,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:36,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:36,820 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:36,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:02:36,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:36,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 17:02:36,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:36,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:02:36,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:36,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:02:36,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:02:36,984 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 18 proven. 168 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-09-24 17:02:36,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [354774263] [2020-09-24 17:02:36,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:02:36,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 17:02:36,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832554473] [2020-09-24 17:02:36,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 17:02:36,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:02:36,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 17:02:36,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=551, Unknown=0, NotChecked=0, Total=600 [2020-09-24 17:02:36,994 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 25 states. [2020-09-24 17:02:38,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:02:38,079 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2020-09-24 17:02:38,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 17:02:38,079 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 83 [2020-09-24 17:02:38,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:02:38,081 INFO L225 Difference]: With dead ends: 72 [2020-09-24 17:02:38,082 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 17:02:38,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=220, Invalid=2642, Unknown=0, NotChecked=0, Total=2862 [2020-09-24 17:02:38,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 17:02:38,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 17:02:38,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 17:02:38,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-24 17:02:38,099 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 83 [2020-09-24 17:02:38,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:02:38,102 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-24 17:02:38,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 17:02:38,102 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-24 17:02:38,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-24 17:02:38,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:38,103 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:02:38,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 17:02:38,103 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:38,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:38,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1891881207, now seen corresponding path program 9 times [2020-09-24 17:02:38,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:38,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420841419] [2020-09-24 17:02:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:38,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:38,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:40,342 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:40,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-24 17:02:40,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:02:40,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2216 [2020-09-24 17:02:40,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:40,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 17:02:40,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:02:40,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-24 17:02:40,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:40,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:02:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:40,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:40,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:40,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:02:40,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:40,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:02:40,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:02:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:02:40,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:40,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:02:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:40,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:40,768 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:40,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 17:02:40,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:40,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-09-24 17:02:40,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:40,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-24 17:02:40,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:40,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 17:02:40,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:40,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:40,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:41,103 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:41,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 17:02:41,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:41,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-24 17:02:41,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:41,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 17:02:41,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:41,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 17:02:41,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:41,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:41,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:41,348 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:41,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:02:41,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:41,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-24 17:02:41,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:41,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 17:02:41,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 17:02:41,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:41,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:41,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:41,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:41,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:02:41,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:41,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-24 17:02:41,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 17:02:41,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:41,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 17:02:41,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:41,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:41,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:41,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:41,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:02:41,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:41,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 17:02:41,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:41,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 17:02:41,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:41,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 17:02:41,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:41,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:41,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:41,981 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:41,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:02:41,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:41,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 17:02:41,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:41,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 17:02:41,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:41,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:02:41,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:42,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:42,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:42,131 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:42,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:02:42,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:42,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 17:02:42,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:02:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:02:42,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:42,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:42,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:42,270 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:42,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:02:42,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:42,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 17:02:42,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:42,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:02:42,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:42,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:02:42,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:02:42,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:42,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:42,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:42,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:02:42,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:42,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 17:02:42,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:42,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:02:42,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:42,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:02:42,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:42,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:42,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:42,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:42,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:02:42,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:42,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 17:02:42,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:42,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:02:42,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:42,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:02:42,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:42,581 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 12 proven. 231 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-24 17:02:42,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420841419] [2020-09-24 17:02:42,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:02:42,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-09-24 17:02:42,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202313178] [2020-09-24 17:02:42,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-09-24 17:02:42,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:02:42,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-09-24 17:02:42,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=599, Unknown=0, NotChecked=0, Total=650 [2020-09-24 17:02:42,584 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 26 states. [2020-09-24 17:02:43,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:02:43,883 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2020-09-24 17:02:43,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-24 17:02:43,884 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 91 [2020-09-24 17:02:43,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:02:43,885 INFO L225 Difference]: With dead ends: 77 [2020-09-24 17:02:43,885 INFO L226 Difference]: Without dead ends: 71 [2020-09-24 17:02:43,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=229, Invalid=2851, Unknown=0, NotChecked=0, Total=3080 [2020-09-24 17:02:43,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-24 17:02:43,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-24 17:02:43,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-24 17:02:43,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-09-24 17:02:43,895 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 91 [2020-09-24 17:02:43,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:02:43,895 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-09-24 17:02:43,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-09-24 17:02:43,896 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-09-24 17:02:43,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-24 17:02:43,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:43,897 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:02:43,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 17:02:43,897 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:43,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:43,897 INFO L82 PathProgramCache]: Analyzing trace with hash 2102223041, now seen corresponding path program 10 times [2020-09-24 17:02:43,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:43,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478472255] [2020-09-24 17:02:43,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:43,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:44,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:47,059 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:47,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 17:02:47,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:02:47,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3144 [2020-09-24 17:02:47,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 17:02:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:02:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 17:02:47,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:47,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:02:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:47,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:47,095 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:47,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:02:47,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:47,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:02:47,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:47,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:02:47,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:47,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:02:47,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:47,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:02:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:47,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:47,480 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:47,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 17:02:47,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:47,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-09-24 17:02:47,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:47,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-09-24 17:02:47,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:47,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 17:02:47,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:47,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:47,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:47,821 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:47,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 17:02:47,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:47,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-24 17:02:47,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:47,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 17:02:47,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:47,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 17:02:47,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:47,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:47,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:48,131 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:48,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 17:02:48,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:48,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-24 17:02:48,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:48,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 17:02:48,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:48,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 17:02:48,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:48,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:48,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:48,365 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:48,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:02:48,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:48,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-24 17:02:48,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:48,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 17:02:48,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:48,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 17:02:48,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:48,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:48,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:48,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:48,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:02:48,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:48,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-24 17:02:48,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:48,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 17:02:48,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:48,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 17:02:48,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:48,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:48,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:48,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:48,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:02:48,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:48,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 17:02:48,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 17:02:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 17:02:48,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:48,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:48,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:48,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:48,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:02:48,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:48,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 17:02:48,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 17:02:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:02:48,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:49,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:49,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:49,069 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:49,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:02:49,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:49,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 17:02:49,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:02:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:02:49,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:49,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:49,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:49,174 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:49,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:02:49,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:49,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 17:02:49,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:49,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:02:49,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:02:49,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:49,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:49,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:49,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:49,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:02:49,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:49,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 17:02:49,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:49,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:02:49,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:49,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:02:49,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:49,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:49,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:49,351 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:49,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:02:49,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:49,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 17:02:49,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:49,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:02:49,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:49,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:02:49,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 20 proven. 280 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-24 17:02:49,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478472255] [2020-09-24 17:02:49,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:02:49,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-09-24 17:02:49,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475663962] [2020-09-24 17:02:49,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-09-24 17:02:49,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:02:49,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-09-24 17:02:49,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=701, Unknown=0, NotChecked=0, Total=756 [2020-09-24 17:02:49,477 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 28 states. [2020-09-24 17:02:51,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:02:51,219 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-09-24 17:02:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-24 17:02:51,219 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 99 [2020-09-24 17:02:51,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:02:51,221 INFO L225 Difference]: With dead ends: 82 [2020-09-24 17:02:51,221 INFO L226 Difference]: Without dead ends: 76 [2020-09-24 17:02:51,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=251, Invalid=3409, Unknown=0, NotChecked=0, Total=3660 [2020-09-24 17:02:51,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-24 17:02:51,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-09-24 17:02:51,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-24 17:02:51,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2020-09-24 17:02:51,233 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 99 [2020-09-24 17:02:51,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:02:51,233 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2020-09-24 17:02:51,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-09-24 17:02:51,233 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2020-09-24 17:02:51,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-24 17:02:51,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:51,234 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:02:51,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 17:02:51,235 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:51,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:51,235 INFO L82 PathProgramCache]: Analyzing trace with hash -505168329, now seen corresponding path program 11 times [2020-09-24 17:02:51,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:51,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732042468] [2020-09-24 17:02:51,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:51,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:51,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:53,858 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:53,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-24 17:02:53,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:02:53,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2603 [2020-09-24 17:02:53,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:53,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-24 17:02:53,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:02:53,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-24 17:02:53,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:53,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:02:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:53,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:53,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:53,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:02:53,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:53,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:02:53,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:53,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:02:53,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:53,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:02:53,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:53,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:02:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:53,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:54,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:54,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 17:02:54,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:54,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-09-24 17:02:54,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:54,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-09-24 17:02:54,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:54,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 17:02:54,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:54,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:54,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:54,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:54,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 17:02:54,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:54,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-24 17:02:54,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 17:02:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:54,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 17:02:54,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:54,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:54,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:54,917 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:54,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 17:02:54,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:54,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-24 17:02:54,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:54,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 17:02:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 17:02:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:54,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:54,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:55,159 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:55,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 17:02:55,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:55,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-24 17:02:55,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:55,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 17:02:55,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:55,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 17:02:55,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:55,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:55,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:55,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:55,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:02:55,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:55,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-24 17:02:55,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:55,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 17:02:55,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:55,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 17:02:55,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:55,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:55,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:55,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:55,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:02:55,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:55,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 17:02:55,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:55,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 17:02:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 17:02:55,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:55,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:55,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:55,789 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:55,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 17:02:55,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:55,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-24 17:02:55,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:55,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 17:02:55,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:55,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 17:02:55,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:55,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:55,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:55,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:55,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:02:55,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:55,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 17:02:55,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:55,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 17:02:55,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:55,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 17:02:55,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:56,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:56,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:56,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:56,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:02:56,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 17:02:56,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:56,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 17:02:56,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:56,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 17:02:56,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:02:56,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:56,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:56,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:56,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 17:02:56,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:56,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 17:02:56,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:02:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:02:56,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:56,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:56,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:56,282 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:56,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:02:56,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:56,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 17:02:56,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:02:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:56,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:02:56,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:56,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:02:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:56,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:56,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:02:56,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:02:56,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:02:56,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:02:56,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:02:56,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:02:56,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:02:56,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:02:56,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:02:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 40 proven. 317 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2020-09-24 17:02:56,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732042468] [2020-09-24 17:02:56,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:02:56,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-09-24 17:02:56,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491311678] [2020-09-24 17:02:56,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-09-24 17:02:56,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:02:56,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-09-24 17:02:56,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=811, Unknown=0, NotChecked=0, Total=870 [2020-09-24 17:02:56,532 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand 30 states. [2020-09-24 17:02:58,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:02:58,517 INFO L93 Difference]: Finished difference Result 87 states and 88 transitions. [2020-09-24 17:02:58,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-09-24 17:02:58,518 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 107 [2020-09-24 17:02:58,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:02:58,519 INFO L225 Difference]: With dead ends: 87 [2020-09-24 17:02:58,519 INFO L226 Difference]: Without dead ends: 81 [2020-09-24 17:02:58,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=273, Invalid=4017, Unknown=0, NotChecked=0, Total=4290 [2020-09-24 17:02:58,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-24 17:02:58,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-09-24 17:02:58,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-24 17:02:58,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 82 transitions. [2020-09-24 17:02:58,528 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 82 transitions. Word has length 107 [2020-09-24 17:02:58,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:02:58,528 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 82 transitions. [2020-09-24 17:02:58,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-09-24 17:02:58,529 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 82 transitions. [2020-09-24 17:02:58,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-09-24 17:02:58,530 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:02:58,530 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:02:58,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 17:02:58,530 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:02:58,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:02:58,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1831339647, now seen corresponding path program 12 times [2020-09-24 17:02:58,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:02:58,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118510062] [2020-09-24 17:02:58,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:02:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:02:58,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:02:58,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:03:01,194 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:03:01,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-24 17:03:01,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:03:01,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2643 [2020-09-24 17:03:01,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:03:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 17:03:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 17:03:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-24 17:03:01,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:03:01,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:03:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:03:01,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:03:01,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:03:01,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:03:01,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:03:01,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:03:01,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:03:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:03:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:03:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:03:01,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:03:01,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 17:03:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:03:01,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:03:01,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:03:01,808 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:03:01,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 17:03:01,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:03:01,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 555 [2020-09-24 17:03:01,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:03:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-09-24 17:03:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:03:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 17:03:01,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:03:01,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:03:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:03:01,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:03:02,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:03:02,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 17:03:02,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:03:02,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-09-24 17:03:02,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:03:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-24 17:03:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:03:02,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 17:03:02,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:03:02,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:03:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:03:02,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:03:02,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:03:02,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 17:03:02,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:03:02,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-09-24 17:03:02,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:03:02,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 17:03:02,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:03:02,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 17:03:02,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:03:02,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:03:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:03:02,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:03:03,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:03:03,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 17:03:03,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:03:03,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-24 17:03:03,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:03:03,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 17:03:03,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:03:03,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 17:03:03,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:03:03,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:03:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:03:03,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:03:03,302 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:03:03,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 17:03:03,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:03:03,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-24 17:03:03,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:03:03,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 17:03:03,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:03:03,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 17:03:03,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:03:03,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:03:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:03:03,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:03:03,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:03:03,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:03:03,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:03:03,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-24 17:03:03,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:03:03,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 17:03:03,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:03:03,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 17:03:03,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:03:03,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:03:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:03:03,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:03:03,709 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:03:03,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:03:03,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:03:03,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 17:03:03,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:03:03,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 17:03:03,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:03:03,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 17:03:03,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:03:03,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:03:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:03:03,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking...