/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --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/Ackermann03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:00:22,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:00:22,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:00:22,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:00:22,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:00:22,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:00:22,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:00:22,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:00:22,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:00:22,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:00:22,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:00:22,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:00:22,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:00:22,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:00:22,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:00:22,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:00:22,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:00:22,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:00:22,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:00:22,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:00:22,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:00:22,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:00:22,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:00:22,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:00:22,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:00:22,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:00:22,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:00:22,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:00:22,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:00:22,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:00:22,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:00:22,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:00:22,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:00:22,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:00:22,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:00:22,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:00:22,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:00:22,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:00:22,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:00:22,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:00:22,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:00:22,617 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 [2020-09-25 02:00:22,643 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:00:22,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:00:22,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:00:22,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:00:22,645 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:00:22,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:00:22,646 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:00:22,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:00:22,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:00:22,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:00:22,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:00:22,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:00:22,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:00:22,647 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:00:22,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:00:22,648 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:00:22,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:00:22,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:00:22,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:00:22,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:00:22,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:00:22,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:00:22,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:00:22,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:00:22,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:00:22,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:00:22,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:00:22,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:00:22,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:00:22,651 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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 02:00:23,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:00:23,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:00:23,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:00:23,114 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:00:23,115 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:00:23,116 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann03.c [2020-09-25 02:00:23,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb4f7ee0f/299d5eee42a94cb19d3a06784d9df231/FLAG87233715b [2020-09-25 02:00:23,756 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:00:23,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Ackermann03.c [2020-09-25 02:00:23,766 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb4f7ee0f/299d5eee42a94cb19d3a06784d9df231/FLAG87233715b [2020-09-25 02:00:24,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb4f7ee0f/299d5eee42a94cb19d3a06784d9df231 [2020-09-25 02:00:24,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:00:24,205 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:00:24,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:00:24,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:00:24,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:00:24,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:24,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@607f9855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24, skipping insertion in model container [2020-09-25 02:00:24,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:24,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:00:24,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:00:24,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:00:24,481 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:00:24,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:00:24,516 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:00:24,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24 WrapperNode [2020-09-25 02:00:24,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:00:24,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:00:24,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:00:24,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:00:24,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:24,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:24,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:24,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:24,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:24,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:24,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:24,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:00:24,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:00:24,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:00:24,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:00:24,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (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 [2020-09-25 02:00:24,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:00:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:00:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2020-09-25 02:00:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:00:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:00:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:00:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2020-09-25 02:00:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:00:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:00:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:00:24,995 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:00:24,995 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 02:00:25,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:00:25 BoogieIcfgContainer [2020-09-25 02:00:25,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:00:25,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:00:25,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:00:25,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:00:25,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:00:24" (1/3) ... [2020-09-25 02:00:25,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315056e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:00:25, skipping insertion in model container [2020-09-25 02:00:25,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (2/3) ... [2020-09-25 02:00:25,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315056e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:00:25, skipping insertion in model container [2020-09-25 02:00:25,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:00:25" (3/3) ... [2020-09-25 02:00:25,034 INFO L109 eAbstractionObserver]: Analyzing ICFG Ackermann03.c [2020-09-25 02:00:25,058 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:00:25,074 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:00:25,094 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:00:25,125 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:00:25,125 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:00:25,126 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:00:25,126 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:00:25,126 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:00:25,126 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:00:25,126 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:00:25,126 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:00:25,147 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-09-25 02:00:25,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 02:00:25,156 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:25,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:25,158 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:25,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:25,164 INFO L82 PathProgramCache]: Analyzing trace with hash -852610024, now seen corresponding path program 1 times [2020-09-25 02:00:25,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:25,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334840864] [2020-09-25 02:00:25,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:25,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:25,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:25,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 02:00:25,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:25,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-25 02:00:25,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 02:00:25,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 02:00:25,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 02:00:25,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:25,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:25,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:25,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:25,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:25,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:00:25,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:25,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:25,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:25,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:25,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:25,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:00:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:25,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:25,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:25,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:25,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:25,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 02:00:25,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:25,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:25,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:25,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:00:25,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:25,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:00:25,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334840864] [2020-09-25 02:00:25,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:00:25,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:00:25,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947947238] [2020-09-25 02:00:25,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:00:25,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:25,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:00:25,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:00:25,762 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 5 states. [2020-09-25 02:00:25,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:25,943 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2020-09-25 02:00:25,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 02:00:25,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-09-25 02:00:25,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:25,962 INFO L225 Difference]: With dead ends: 88 [2020-09-25 02:00:25,963 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 02:00:25,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:00:25,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 02:00:26,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 02:00:26,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 02:00:26,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2020-09-25 02:00:26,030 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 24 [2020-09-25 02:00:26,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:26,031 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2020-09-25 02:00:26,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:00:26,032 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2020-09-25 02:00:26,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 02:00:26,036 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:26,036 INFO L422 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1] [2020-09-25 02:00:26,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:00:26,037 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:26,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:26,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1574290279, now seen corresponding path program 1 times [2020-09-25 02:00:26,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:26,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511213605] [2020-09-25 02:00:26,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:26,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:26,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:26,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:26,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 02:00:26,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:00:26,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-09-25 02:00:26,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:26,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:26,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 02:00:26,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:00:26,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:00:26,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:26,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:26,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:26,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:26,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:26,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:00:26,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:26,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:26,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:26,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:26,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:26,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:00:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:26,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:26,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:26,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:00:26,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:26,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 02:00:26,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:26,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:26,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:26,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:00:26,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:26,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:26,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:26,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:26,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:26,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:26,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 02:00:26,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:26,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:26,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:26,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 02:00:26,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511213605] [2020-09-25 02:00:26,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:00:26,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 02:00:26,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244907976] [2020-09-25 02:00:26,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:00:26,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:26,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:00:26,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:00:26,827 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 5 states. [2020-09-25 02:00:26,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:26,987 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2020-09-25 02:00:26,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 02:00:26,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-09-25 02:00:26,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:26,994 INFO L225 Difference]: With dead ends: 83 [2020-09-25 02:00:26,994 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 02:00:27,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:00:27,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 02:00:27,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-25 02:00:27,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 02:00:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2020-09-25 02:00:27,028 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 34 [2020-09-25 02:00:27,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:27,032 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2020-09-25 02:00:27,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:00:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2020-09-25 02:00:27,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 02:00:27,036 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:27,036 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:27,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:00:27,036 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:27,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:27,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1685750542, now seen corresponding path program 1 times [2020-09-25 02:00:27,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:27,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192393030] [2020-09-25 02:00:27,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:27,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:27,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:27,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:30,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:30,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 02:00:30,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:00:30,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3208 [2020-09-25 02:00:30,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:30,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:00:30,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 02:00:30,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 02:00:30,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:30,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:30,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:30,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:30,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:30,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:30,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:00:30,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:30,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:30,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:00:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:30,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:30,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:30,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:00:30,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:30,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 02:00:30,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:00:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 02:00:30,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:30,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:30,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:30,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:30,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:00:30,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:30,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 02:00:30,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:30,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:00:30,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:30,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:00:30,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:30,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:30,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:30,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:30,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:30,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:30,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:00:30,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:30,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:30,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:30,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:30,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:30,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 02:00:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:30,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:30,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:30,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:30,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:30,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:00:30,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:30,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:30,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:30,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:30,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:30,552 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 02:00:30,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192393030] [2020-09-25 02:00:30,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:00:30,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 02:00:30,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547107007] [2020-09-25 02:00:30,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:00:30,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:30,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:00:30,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:00:30,556 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand 7 states. [2020-09-25 02:00:30,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:30,702 INFO L93 Difference]: Finished difference Result 75 states and 97 transitions. [2020-09-25 02:00:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 02:00:30,702 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 02:00:30,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:30,706 INFO L225 Difference]: With dead ends: 75 [2020-09-25 02:00:30,707 INFO L226 Difference]: Without dead ends: 69 [2020-09-25 02:00:30,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:00:30,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-25 02:00:30,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-09-25 02:00:30,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 02:00:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2020-09-25 02:00:30,723 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 53 [2020-09-25 02:00:30,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:30,723 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 91 transitions. [2020-09-25 02:00:30,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 02:00:30,724 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2020-09-25 02:00:30,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 02:00:30,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:30,731 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2020-09-25 02:00:30,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:00:30,731 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:30,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:30,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1817818703, now seen corresponding path program 2 times [2020-09-25 02:00:30,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:30,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434985130] [2020-09-25 02:00:30,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:30,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:30,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:30,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:33,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:33,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 02:00:33,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:00:33,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2945 [2020-09-25 02:00:33,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:33,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 02:00:33,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 02:00:33,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 02:00:33,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:33,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:33,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:33,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:33,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:33,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:33,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:00:33,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:33,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:33,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:00:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:33,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:33,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:33,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:36,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:36,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 02:00:36,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:00:36,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3187 [2020-09-25 02:00:36,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:36,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 02:00:36,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:36,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 02:00:36,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:36,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:36,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:37,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:00:37,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:00:37,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 552 [2020-09-25 02:00:37,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:37,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:00:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 02:00:37,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:37,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:37,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:37,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:00:37,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:37,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 02:00:37,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:00:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:37,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:00:37,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:37,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:37,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:37,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:37,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:37,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 02:00:37,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:37,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:00:37,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:37,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:00:37,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 02:00:37,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 02:00:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:37,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:37,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:37,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:37,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 02:00:37,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:37,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:37,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 02:00:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:37,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:37,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:37,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:37,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:00:37,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:37,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:37,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:37,819 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-09-25 02:00:37,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434985130] [2020-09-25 02:00:37,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:00:37,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 02:00:37,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802808225] [2020-09-25 02:00:37,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:00:37,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:37,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:00:37,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:00:37,825 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand 7 states. [2020-09-25 02:00:38,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:38,091 INFO L93 Difference]: Finished difference Result 107 states and 159 transitions. [2020-09-25 02:00:38,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 02:00:38,095 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2020-09-25 02:00:38,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:38,107 INFO L225 Difference]: With dead ends: 107 [2020-09-25 02:00:38,108 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 02:00:38,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:00:38,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 02:00:38,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-09-25 02:00:38,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 02:00:38,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 153 transitions. [2020-09-25 02:00:38,162 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 153 transitions. Word has length 72 [2020-09-25 02:00:38,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:38,163 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 153 transitions. [2020-09-25 02:00:38,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 02:00:38,164 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 153 transitions. [2020-09-25 02:00:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 02:00:38,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:38,181 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 11, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:38,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:00:38,181 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:38,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:38,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1454565455, now seen corresponding path program 3 times [2020-09-25 02:00:38,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:38,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049143954] [2020-09-25 02:00:38,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:38,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:38,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:38,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:38,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:43,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 02:00:43,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:00:43,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 02:00:43,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:00:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 02:00:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:00:43,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:43,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:43,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:43,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:43,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:43,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:00:43,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:43,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:00:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:43,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:48,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 02:00:48,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:00:48,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 02:00:48,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:48,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:00:48,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 02:00:48,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:00:48,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:48,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:48,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:49,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:53,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 02:00:53,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:00:53,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 02:00:53,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:53,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:00:53,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:00:53,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:00:53,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:53,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:53,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:53,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 02:00:53,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:53,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-25 02:00:53,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:53,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:00:53,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:53,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 02:00:53,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:53,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:53,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:53,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:00:53,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:53,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-25 02:00:53,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:53,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:00:53,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:53,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:00:53,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:53,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:53,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:53,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:00:53,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:53,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 02:00:53,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:53,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:00:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 02:00:53,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:53,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:53,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:53,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:53,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:53,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:00:53,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:00:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:00:53,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:53,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 02:00:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:53,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:54,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:00:54,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:00:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:00:54,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 02:00:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 02:00:54,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 02:00:54,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:54,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 02:00:54,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 02:00:54,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:00:54,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 02:00:54,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:54,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 02:00:54,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:00:54,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:00:54,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:54,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:00:54,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 02:00:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:54,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:00:54,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-25 02:00:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 02:00:54,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 02:00:54,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 02:00:54,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:00:54,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:00:54,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:00:54,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:00:54,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:54,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:00:54,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 02:00:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:54,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:00:54,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,397 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 131 proven. 219 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2020-09-25 02:00:54,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049143954] [2020-09-25 02:00:54,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:00:54,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 02:00:54,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19278006] [2020-09-25 02:00:54,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 02:00:54,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:54,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 02:00:54,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-25 02:00:54,401 INFO L87 Difference]: Start difference. First operand 101 states and 153 transitions. Second operand 14 states. [2020-09-25 02:00:55,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:55,297 INFO L93 Difference]: Finished difference Result 377 states and 926 transitions. [2020-09-25 02:00:55,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 02:00:55,298 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 179 [2020-09-25 02:00:55,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:55,316 INFO L225 Difference]: With dead ends: 377 [2020-09-25 02:00:55,316 INFO L226 Difference]: Without dead ends: 289 [2020-09-25 02:00:55,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=287, Invalid=1045, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 02:00:55,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-09-25 02:00:55,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 168. [2020-09-25 02:00:55,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-09-25 02:00:55,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 326 transitions. [2020-09-25 02:00:55,407 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 326 transitions. Word has length 179 [2020-09-25 02:00:55,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:55,408 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 326 transitions. [2020-09-25 02:00:55,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 02:00:55,408 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 326 transitions. [2020-09-25 02:00:55,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 02:00:55,419 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:55,420 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 13, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1] [2020-09-25 02:00:55,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 02:00:55,420 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:55,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:55,420 INFO L82 PathProgramCache]: Analyzing trace with hash -372339623, now seen corresponding path program 4 times [2020-09-25 02:00:55,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:55,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726350089] [2020-09-25 02:00:55,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:55,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:00,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 02:01:00,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 02:01:00,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 02:01:00,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:00,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:01:00,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 02:01:00,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:01:00,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:01:00,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:01:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:00,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:00,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:01:00,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:00,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:01:00,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:00,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:00,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:00,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:00,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:01:00,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:01:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:00,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:03,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:03,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:03,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:03,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:05,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:05,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 02:01:05,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 02:01:05,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 02:01:05,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:05,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:01:05,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-09-25 02:01:05,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:01:05,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:05,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:01:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:05,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:05,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:05,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:05,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:05,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:06,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:10,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-25 02:01:10,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 02:01:10,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 02:01:10,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:10,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:01:10,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 02:01:10,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:01:10,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:10,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:01:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:10,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:10,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 02:01:10,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:10,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 02:01:10,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:10,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:10,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:01:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:10,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:10,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:01:10,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:10,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:01:10,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:10,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:10,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:10,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:01:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:10,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:10,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:01:10,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:10,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:01:10,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:10,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:10,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:01:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:10,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:10,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:01:10,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:10,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:01:10,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:10,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:10,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:10,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:10,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:01:10,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 02:01:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:10,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:10,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:01:10,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:10,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:01:10,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:10,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:10,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 02:01:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:10,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:11,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking...