/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=BIGGEST --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-simple/id_o100.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:26:32,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:26:32,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:26:32,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:26:32,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:26:32,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:26:32,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:26:32,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:26:32,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:26:32,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:26:32,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:26:32,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:26:32,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:26:32,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:26:32,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:26:32,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:26:32,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:26:32,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:26:32,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:26:32,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:26:32,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:26:32,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:26:32,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:26:32,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:26:32,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:26:32,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:26:32,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:26:32,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:26:32,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:26:32,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:26:32,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:26:32,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:26:32,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:26:32,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:26:32,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:26:32,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:26:32,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:26:32,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:26:32,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:26:32,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:26:32,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:26:32,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:26:33,041 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:26:33,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:26:33,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:26:33,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:26:33,044 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:26:33,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:26:33,046 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:26:33,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:26:33,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:26:33,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:26:33,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:26:33,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:26:33,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:26:33,049 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:26:33,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:26:33,049 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:26:33,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:26:33,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:26:33,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:26:33,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:26:33,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:26:33,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:26:33,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:26:33,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:26:33,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:26:33,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:26:33,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:26:33,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:26:33,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:26:33,052 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:26:33,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:26:33,498 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:26:33,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:26:33,504 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:26:33,504 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:26:33,506 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o100.c [2020-09-24 20:26:33,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e0c5dbe3/1ed28174b9d448ed82032ce13fe31787/FLAG07fbcfc20 [2020-09-24 20:26:34,113 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:26:34,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o100.c [2020-09-24 20:26:34,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e0c5dbe3/1ed28174b9d448ed82032ce13fe31787/FLAG07fbcfc20 [2020-09-24 20:26:34,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e0c5dbe3/1ed28174b9d448ed82032ce13fe31787 [2020-09-24 20:26:34,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:26:34,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:26:34,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:26:34,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:26:34,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:26:34,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:26:34" (1/1) ... [2020-09-24 20:26:34,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a067aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:26:34, skipping insertion in model container [2020-09-24 20:26:34,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:26:34" (1/1) ... [2020-09-24 20:26:34,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:26:34,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:26:34,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:26:34,740 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:26:34,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:26:34,769 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:26:34,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:26:34 WrapperNode [2020-09-24 20:26:34,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:26:34,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:26:34,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:26:34,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:26:34,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:26:34" (1/1) ... [2020-09-24 20:26:34,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:26:34" (1/1) ... [2020-09-24 20:26:34,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:26:34" (1/1) ... [2020-09-24 20:26:34,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:26:34" (1/1) ... [2020-09-24 20:26:34,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:26:34" (1/1) ... [2020-09-24 20:26:34,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:26:34" (1/1) ... [2020-09-24 20:26:34,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:26:34" (1/1) ... [2020-09-24 20:26:34,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:26:34,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:26:34,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:26:34,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:26:34,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:26:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:26:34,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:26:34,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:26:34,950 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-24 20:26:34,950 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:26:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 20:26:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:26:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-24 20:26:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:26:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:26:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:26:35,120 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:26:35,121 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 20:26:35,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:26:35 BoogieIcfgContainer [2020-09-24 20:26:35,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:26:35,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:26:35,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:26:35,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:26:35,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:26:34" (1/3) ... [2020-09-24 20:26:35,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d69818c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:26:35, skipping insertion in model container [2020-09-24 20:26:35,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:26:34" (2/3) ... [2020-09-24 20:26:35,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d69818c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:26:35, skipping insertion in model container [2020-09-24 20:26:35,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:26:35" (3/3) ... [2020-09-24 20:26:35,135 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o100.c [2020-09-24 20:26:35,143 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:26:35,153 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:26:35,173 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:26:35,199 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:26:35,199 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:26:35,199 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:26:35,199 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:26:35,200 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:26:35,200 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:26:35,200 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:26:35,200 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:26:35,220 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-24 20:26:35,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 20:26:35,227 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:26:35,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:26:35,228 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:26:35,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:26:35,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-09-24 20:26:35,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:26:35,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83797748] [2020-09-24 20:26:35,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:26:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:35,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:35,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:35,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:26:35,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:35,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 20:26:35,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:35,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:26:35,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:26:35,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:26:35,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:26:35,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:26:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:35,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:35,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:35,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:26:35,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:35,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:26:35,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:35,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:26:35,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:35,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:26:35,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:35,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:26:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:35,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:35,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:35,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:26:35,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:35,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 20:26:35,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:35,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:26:35,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:35,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:26:35,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:26:35,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83797748] [2020-09-24 20:26:35,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:26:35,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 20:26:35,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281147398] [2020-09-24 20:26:35,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 20:26:35,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:26:35,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 20:26:35,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:26:35,640 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-24 20:26:35,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:26:35,711 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-24 20:26:35,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 20:26:35,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 20:26:35,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:26:35,727 INFO L225 Difference]: With dead ends: 37 [2020-09-24 20:26:35,727 INFO L226 Difference]: Without dead ends: 22 [2020-09-24 20:26:35,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:26:35,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-24 20:26:35,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-24 20:26:35,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-24 20:26:35,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-09-24 20:26:35,783 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-09-24 20:26:35,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:26:35,783 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-09-24 20:26:35,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 20:26:35,784 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-09-24 20:26:35,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-24 20:26:35,786 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:26:35,786 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:26:35,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:26:35,787 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:26:35,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:26:35,788 INFO L82 PathProgramCache]: Analyzing trace with hash 189324707, now seen corresponding path program 1 times [2020-09-24 20:26:35,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:26:35,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875378415] [2020-09-24 20:26:35,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:26:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:35,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:36,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:36,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 20:26:36,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:36,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-24 20:26:36,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:26:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 20:26:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:26:36,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:36,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:26:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:36,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:36,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:36,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:26:36,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:36,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:26:36,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:36,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:26:36,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:36,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:26:36,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:26:36,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:26:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:36,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:36,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:36,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:26:36,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:36,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 20:26:36,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:26:36,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:36,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:26:36,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:36,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:36,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:36,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:36,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:26:36,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:36,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 20:26:36,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:36,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:26:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:26:36,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:26:36,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875378415] [2020-09-24 20:26:36,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:26:36,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 20:26:36,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483758890] [2020-09-24 20:26:36,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:26:36,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:26:36,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:26:36,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:26:36,432 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-09-24 20:26:36,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:26:36,498 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-24 20:26:36,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 20:26:36,499 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-24 20:26:36,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:26:36,501 INFO L225 Difference]: With dead ends: 31 [2020-09-24 20:26:36,501 INFO L226 Difference]: Without dead ends: 26 [2020-09-24 20:26:36,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:26:36,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-24 20:26:36,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-24 20:26:36,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-24 20:26:36,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-24 20:26:36,510 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2020-09-24 20:26:36,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:26:36,510 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-24 20:26:36,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:26:36,511 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-24 20:26:36,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 20:26:36,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:26:36,513 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:26:36,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:26:36,513 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:26:36,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:26:36,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1416732684, now seen corresponding path program 2 times [2020-09-24 20:26:36,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:26:36,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615060090] [2020-09-24 20:26:36,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:26:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:36,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:36,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:36,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 20:26:36,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:36,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 20:26:36,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:36,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:26:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 20:26:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 20:26:36,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:36,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:26:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:36,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:36,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:36,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:26:36,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:36,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:26:36,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:36,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:26:36,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:36,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:26:36,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:36,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:26:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:36,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:36,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:36,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:26:36,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:36,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-24 20:26:36,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:36,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:26:36,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:36,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:26:36,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:37,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:37,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:37,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:37,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:26:37,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:37,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 20:26:37,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:37,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:26:37,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:37,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:26:37,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:37,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:37,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:37,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:37,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:26:37,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:37,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:26:37,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:26:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:26:37,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:37,176 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 20:26:37,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615060090] [2020-09-24 20:26:37,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:26:37,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 20:26:37,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270908173] [2020-09-24 20:26:37,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:26:37,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:26:37,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:26:37,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:26:37,179 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-24 20:26:37,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:26:37,273 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-09-24 20:26:37,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:26:37,274 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-24 20:26:37,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:26:37,275 INFO L225 Difference]: With dead ends: 35 [2020-09-24 20:26:37,276 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 20:26:37,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:26:37,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 20:26:37,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 20:26:37,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 20:26:37,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-24 20:26:37,283 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 30 [2020-09-24 20:26:37,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:26:37,284 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-24 20:26:37,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:26:37,284 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-24 20:26:37,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 20:26:37,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:26:37,286 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:26:37,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:26:37,286 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:26:37,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:26:37,287 INFO L82 PathProgramCache]: Analyzing trace with hash -209476043, now seen corresponding path program 3 times [2020-09-24 20:26:37,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:26:37,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132977897] [2020-09-24 20:26:37,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:26:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:37,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:37,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:37,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 20:26:37,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:37,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-24 20:26:37,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:37,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:26:37,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 20:26:37,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:26:37,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:37,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:26:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:37,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:37,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:37,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:26:37,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:37,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:26:37,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:37,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:26:37,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:37,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:26:37,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:37,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:26:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:37,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:37,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:37,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 20:26:37,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:37,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-24 20:26:37,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:37,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:26:37,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:37,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:26:37,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:37,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:37,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:37,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:37,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:26:37,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:37,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 20:26:37,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:37,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:26:37,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:37,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:26:37,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:37,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:37,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:38,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:38,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:26:38,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:38,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 20:26:38,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:38,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:26:38,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:38,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:26:38,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:38,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:38,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:38,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:38,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:26:38,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:38,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 20:26:38,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:38,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:26:38,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:38,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:26:38,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:38,114 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 20:26:38,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132977897] [2020-09-24 20:26:38,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:26:38,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 20:26:38,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148728852] [2020-09-24 20:26:38,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:26:38,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:26:38,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:26:38,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:26:38,120 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-24 20:26:38,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:26:38,284 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-24 20:26:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:26:38,284 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-24 20:26:38,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:26:38,286 INFO L225 Difference]: With dead ends: 39 [2020-09-24 20:26:38,287 INFO L226 Difference]: Without dead ends: 34 [2020-09-24 20:26:38,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:26:38,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-24 20:26:38,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-09-24 20:26:38,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-24 20:26:38,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-24 20:26:38,295 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 37 [2020-09-24 20:26:38,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:26:38,296 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-24 20:26:38,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 20:26:38,296 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-24 20:26:38,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-24 20:26:38,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:26:38,298 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:26:38,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:26:38,298 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:26:38,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:26:38,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1007399302, now seen corresponding path program 4 times [2020-09-24 20:26:38,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:26:38,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983026315] [2020-09-24 20:26:38,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:26:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:38,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:38,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:38,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 20:26:38,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:38,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-24 20:26:38,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:38,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:26:38,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-24 20:26:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:26:38,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:38,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:26:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:38,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:38,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:38,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:26:38,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:38,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:26:38,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:38,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:26:38,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:38,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:26:38,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:38,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:26:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:38,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:38,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:38,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 20:26:38,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:38,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-24 20:26:38,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:38,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:26:38,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:38,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:26:38,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:38,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:38,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:39,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:39,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 20:26:39,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:39,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-24 20:26:39,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:26:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:26:39,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:39,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:39,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:39,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:39,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:26:39,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:39,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 20:26:39,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:26:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:26:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:39,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:39,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:39,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:39,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:26:39,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:39,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 20:26:39,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:26:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:26:39,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:39,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:39,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:39,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:39,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:26:39,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:39,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:26:39,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:39,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:26:39,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:39,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:26:39,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:39,342 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 20:26:39,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983026315] [2020-09-24 20:26:39,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:26:39,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 20:26:39,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221459930] [2020-09-24 20:26:39,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 20:26:39,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:26:39,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 20:26:39,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:26:39,345 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 13 states. [2020-09-24 20:26:39,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:26:39,551 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-24 20:26:39,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 20:26:39,552 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-24 20:26:39,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:26:39,554 INFO L225 Difference]: With dead ends: 43 [2020-09-24 20:26:39,554 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 20:26:39,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-24 20:26:39,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 20:26:39,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-24 20:26:39,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 20:26:39,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-24 20:26:39,563 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 44 [2020-09-24 20:26:39,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:26:39,563 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-24 20:26:39,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 20:26:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-24 20:26:39,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 20:26:39,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:26:39,566 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:26:39,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 20:26:39,566 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:26:39,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:26:39,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1787659065, now seen corresponding path program 5 times [2020-09-24 20:26:39,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:26:39,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672440793] [2020-09-24 20:26:39,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:26:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:39,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:40,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:40,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 20:26:40,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:40,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 470 [2020-09-24 20:26:40,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:26:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-24 20:26:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 20:26:40,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:26:40,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:26:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:40,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:40,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:40,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:26:40,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:40,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:26:40,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:40,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:26:40,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:40,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:26:40,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:40,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:26:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:40,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:40,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:40,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 20:26:40,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:40,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-09-24 20:26:40,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:40,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:26:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 20:26:40,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:40,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:40,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:40,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:40,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 20:26:40,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:40,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-24 20:26:40,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:40,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:26:40,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:40,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:26:40,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:40,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:40,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:40,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:40,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 20:26:40,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:40,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-24 20:26:40,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:40,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:26:40,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:40,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:26:40,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:41,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:41,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:41,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:41,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:26:41,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:41,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 20:26:41,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:41,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:26:41,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:41,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:26:41,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:41,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:41,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:41,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:41,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:26:41,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:41,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 20:26:41,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:26:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:26:41,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:41,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:41,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:41,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:41,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:26:41,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:41,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:26:41,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:41,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:26:41,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:41,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:26:41,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:41,330 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-24 20:26:41,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672440793] [2020-09-24 20:26:41,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:26:41,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 20:26:41,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129664215] [2020-09-24 20:26:41,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 20:26:41,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:26:41,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 20:26:41,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:26:41,333 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 15 states. [2020-09-24 20:26:41,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:26:41,600 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-24 20:26:41,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 20:26:41,601 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-09-24 20:26:41,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:26:41,602 INFO L225 Difference]: With dead ends: 47 [2020-09-24 20:26:41,602 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 20:26:41,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-09-24 20:26:41,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 20:26:41,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 20:26:41,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 20:26:41,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-24 20:26:41,615 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 51 [2020-09-24 20:26:41,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:26:41,616 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-24 20:26:41,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 20:26:41,616 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-24 20:26:41,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 20:26:41,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:26:41,620 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:26:41,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 20:26:41,621 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:26:41,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:26:41,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1360883432, now seen corresponding path program 6 times [2020-09-24 20:26:41,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:26:41,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791674828] [2020-09-24 20:26:41,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:26:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:41,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:42,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:42,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 20:26:42,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:42,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-09-24 20:26:42,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:42,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:26:42,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 20:26:42,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 20:26:42,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:42,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:26:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:42,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:42,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:42,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:26:42,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:42,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:26:42,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:42,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:26:42,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:42,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:26:42,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 20:26:42,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:26:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:42,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:42,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:42,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 20:26:42,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-09-24 20:26:42,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:26:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 20:26:42,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:42,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:42,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:42,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:42,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 20:26:42,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:42,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-24 20:26:42,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:42,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:26:42,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:42,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 20:26:42,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:42,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:43,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:43,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:43,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 20:26:43,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:43,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-24 20:26:43,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:26:43,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:43,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:26:43,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:43,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:43,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:43,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:43,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 20:26:43,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:43,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-24 20:26:43,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:26:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:43,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:26:43,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:43,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:43,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:43,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:43,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:26:43,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:43,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 20:26:43,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:43,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:26:43,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:43,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:26:43,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:43,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:43,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:43,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:43,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:26:43,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:43,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 20:26:43,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:43,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:26:43,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:43,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:26:43,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:43,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:43,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:43,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:43,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:26:43,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:43,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:26:43,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:26:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:26:43,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:43,762 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-24 20:26:43,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791674828] [2020-09-24 20:26:43,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:26:43,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 20:26:43,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235317785] [2020-09-24 20:26:43,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 20:26:43,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:26:43,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 20:26:43,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:26:43,767 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-09-24 20:26:44,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:26:44,073 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-24 20:26:44,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 20:26:44,074 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-24 20:26:44,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:26:44,075 INFO L225 Difference]: With dead ends: 51 [2020-09-24 20:26:44,076 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 20:26:44,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-09-24 20:26:44,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 20:26:44,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-24 20:26:44,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 20:26:44,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-24 20:26:44,088 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 58 [2020-09-24 20:26:44,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:26:44,089 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-24 20:26:44,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 20:26:44,089 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-24 20:26:44,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 20:26:44,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:26:44,094 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:26:44,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 20:26:44,094 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:26:44,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:26:44,097 INFO L82 PathProgramCache]: Analyzing trace with hash -807968423, now seen corresponding path program 7 times [2020-09-24 20:26:44,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:26:44,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812940667] [2020-09-24 20:26:44,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:26:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:44,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:44,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:44,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 20:26:44,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:44,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-09-24 20:26:44,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:44,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 20:26:44,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-24 20:26:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 20:26:44,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:44,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:26:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:44,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:44,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:44,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:26:44,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:44,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:26:44,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:44,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:26:44,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:44,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:26:44,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:44,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:26:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:44,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:45,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:45,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 20:26:45,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:45,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 539 [2020-09-24 20:26:45,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:45,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:26:45,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:45,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:26:45,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:45,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:45,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:45,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:45,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 20:26:45,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:45,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-09-24 20:26:45,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:45,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:26:45,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:45,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 20:26:45,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:45,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:45,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:46,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:46,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 20:26:46,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:46,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-09-24 20:26:46,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:46,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:26:46,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:46,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 20:26:46,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:46,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:46,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:46,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:46,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 20:26:46,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:46,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-24 20:26:46,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:46,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:26:46,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:46,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:26:46,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:46,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:46,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:46,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:46,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 20:26:46,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:46,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 20:26:46,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:46,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:26:46,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:26:46,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:46,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:46,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:46,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:46,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:26:46,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:46,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 20:26:46,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:46,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:26:46,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:46,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:26:46,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:46,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:46,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:46,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:46,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:26:46,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:46,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 20:26:46,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:46,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:26:46,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:46,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:26:46,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:46,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:46,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:46,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:46,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:26:46,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:46,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:26:46,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:26:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:46,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:26:46,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-24 20:26:47,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812940667] [2020-09-24 20:26:47,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:26:47,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 20:26:47,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505726299] [2020-09-24 20:26:47,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 20:26:47,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:26:47,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 20:26:47,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:26:47,013 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-24 20:26:47,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:26:47,382 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-24 20:26:47,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 20:26:47,383 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-09-24 20:26:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:26:47,384 INFO L225 Difference]: With dead ends: 55 [2020-09-24 20:26:47,385 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 20:26:47,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2020-09-24 20:26:47,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 20:26:47,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-24 20:26:47,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 20:26:47,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-24 20:26:47,394 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 65 [2020-09-24 20:26:47,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:26:47,394 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-24 20:26:47,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 20:26:47,394 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-24 20:26:47,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 20:26:47,396 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:26:47,396 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:26:47,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 20:26:47,396 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:26:47,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:26:47,397 INFO L82 PathProgramCache]: Analyzing trace with hash -705364310, now seen corresponding path program 8 times [2020-09-24 20:26:47,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:26:47,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451859521] [2020-09-24 20:26:47,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:26:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:47,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:48,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:48,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-24 20:26:48,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:48,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 779 [2020-09-24 20:26:48,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 20:26:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-24 20:26:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 20:26:48,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:48,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:26:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:48,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:48,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:48,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:26:48,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:48,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:26:48,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:48,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:26:48,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:48,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:26:48,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:48,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:26:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:48,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:48,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:48,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 20:26:48,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:48,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 694 [2020-09-24 20:26:48,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:26:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:26:48,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:48,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:49,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:49,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:49,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 20:26:49,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:49,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 500 [2020-09-24 20:26:49,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:49,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:26:49,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:49,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:26:49,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:49,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:49,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:49,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:49,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 20:26:49,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:49,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-09-24 20:26:49,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:26:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 20:26:49,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:49,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:49,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:50,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:50,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 20:26:50,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:50,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-24 20:26:50,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:50,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:26:50,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:50,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 20:26:50,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:50,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:50,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:50,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:50,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 20:26:50,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:50,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-24 20:26:50,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:26:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:26:50,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:50,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:50,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:50,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:50,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 20:26:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 20:26:50,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:26:50,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:50,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:26:50,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:50,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:50,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:50,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:50,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:26:50,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:50,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 20:26:50,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:26:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:26:50,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:50,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:50,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:50,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:50,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:26:50,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:50,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 20:26:50,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:26:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:26:50,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:50,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:50,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:50,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:50,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:26:50,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:50,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:26:50,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:50,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:26:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:26:50,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:51,011 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-24 20:26:51,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451859521] [2020-09-24 20:26:51,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:26:51,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 20:26:51,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608398510] [2020-09-24 20:26:51,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 20:26:51,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:26:51,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 20:26:51,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-24 20:26:51,020 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-24 20:26:51,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:26:51,436 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-24 20:26:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-24 20:26:51,437 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-24 20:26:51,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:26:51,438 INFO L225 Difference]: With dead ends: 59 [2020-09-24 20:26:51,438 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 20:26:51,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2020-09-24 20:26:51,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 20:26:51,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-24 20:26:51,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 20:26:51,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-24 20:26:51,451 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 72 [2020-09-24 20:26:51,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:26:51,452 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-24 20:26:51,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 20:26:51,452 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-24 20:26:51,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 20:26:51,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:26:51,454 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:26:51,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 20:26:51,454 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:26:51,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:26:51,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1418439701, now seen corresponding path program 9 times [2020-09-24 20:26:51,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:26:51,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251328984] [2020-09-24 20:26:51,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:26:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:51,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:52,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:52,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 20:26:52,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:52,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 900 [2020-09-24 20:26:52,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:52,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 20:26:52,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-24 20:26:52,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:26:52,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:52,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:26:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:52,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:52,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:52,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:26:52,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:52,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:26:52,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:26:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:26:52,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:52,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:26:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:52,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:53,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:53,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 20:26:53,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:53,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 816 [2020-09-24 20:26:53,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:53,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 20:26:53,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 20:26:53,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:53,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:53,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:53,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:53,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 20:26:53,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:53,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 620 [2020-09-24 20:26:53,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:53,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:26:53,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:26:53,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 20:26:53,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:54,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:54,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:54,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 20:26:54,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:54,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-09-24 20:26:54,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:54,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:26:54,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:54,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:26:54,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:54,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:54,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:54,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:54,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 20:26:54,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:54,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-09-24 20:26:54,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:26:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 20:26:54,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:54,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:54,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:55,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:55,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 20:26:55,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:55,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-24 20:26:55,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:26:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 20:26:55,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:55,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:55,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:55,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:55,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 20:26:55,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:55,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-24 20:26:55,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:26:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:26:55,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:55,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:55,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:55,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:55,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 20:26:55,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:55,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 20:26:55,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:55,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:26:55,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:55,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:26:55,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:55,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:55,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:55,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:55,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:26:55,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:55,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 20:26:55,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:55,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:26:55,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:55,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:26:55,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:55,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:55,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:55,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:55,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:26:55,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:55,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 20:26:55,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:26:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:26:55,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:55,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:55,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:55,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:55,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:26:55,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:55,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:26:55,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:55,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:26:55,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:55,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:26:55,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:55,914 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-24 20:26:55,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251328984] [2020-09-24 20:26:55,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:26:55,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 20:26:55,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751488136] [2020-09-24 20:26:55,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 20:26:55,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:26:55,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 20:26:55,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-24 20:26:55,917 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 23 states. [2020-09-24 20:26:56,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:26:56,407 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-24 20:26:56,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 20:26:56,408 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-24 20:26:56,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:26:56,410 INFO L225 Difference]: With dead ends: 63 [2020-09-24 20:26:56,410 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 20:26:56,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 20:26:56,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 20:26:56,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-24 20:26:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 20:26:56,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-24 20:26:56,419 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 79 [2020-09-24 20:26:56,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:26:56,419 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-24 20:26:56,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 20:26:56,419 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-24 20:26:56,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 20:26:56,420 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:26:56,421 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:26:56,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 20:26:56,421 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:26:56,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:26:56,423 INFO L82 PathProgramCache]: Analyzing trace with hash -182126020, now seen corresponding path program 10 times [2020-09-24 20:26:56,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:26:56,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261300075] [2020-09-24 20:26:56,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:26:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:56,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:57,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:57,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 20:26:57,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:57,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 991 [2020-09-24 20:26:57,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 20:26:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 20:26:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 20:26:57,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:57,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:26:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:57,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:57,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:57,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:26:57,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:57,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:26:57,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:26:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:26:57,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:26:57,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:26:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:57,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:58,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:58,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 20:26:58,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:58,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 797 [2020-09-24 20:26:58,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 20:26:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 20:26:58,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:58,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:58,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:58,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:58,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 20:26:58,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:58,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 604 [2020-09-24 20:26:58,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 20:26:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 20:26:58,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:59,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:59,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:59,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:59,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 20:26:59,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:59,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-09-24 20:26:59,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:59,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:26:59,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:59,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:26:59,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:26:59,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:26:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:26:59,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:26:59,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:26:59,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 20:26:59,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:26:59,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-09-24 20:26:59,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:26:59,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:26:59,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:26:59,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:26:59,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:00,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:00,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:00,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:00,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 20:27:00,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:00,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-24 20:27:00,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:27:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 20:27:00,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:00,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:00,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:00,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:00,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 20:27:00,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:00,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-24 20:27:00,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:27:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 20:27:00,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:00,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:00,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:00,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:00,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 20:27:00,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:00,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 20:27:00,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:27:00,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:00,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:27:00,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:27:00,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:00,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:00,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:00,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 20:27:00,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:00,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 20:27:00,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:27:00,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:00,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:27:00,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:01,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:01,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:01,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:01,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:27:01,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:01,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 20:27:01,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:01,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:27:01,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:01,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:27:01,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:01,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:01,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:01,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:01,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:27:01,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:01,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 20:27:01,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:01,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:27:01,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:01,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:27:01,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:01,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:01,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:01,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:01,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:27:01,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:01,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:27:01,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:27:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:27:01,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-24 20:27:01,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261300075] [2020-09-24 20:27:01,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:27:01,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 20:27:01,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141648879] [2020-09-24 20:27:01,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 20:27:01,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:27:01,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 20:27:01,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-24 20:27:01,397 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 25 states. [2020-09-24 20:27:02,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:27:02,080 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-24 20:27:02,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 20:27:02,081 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2020-09-24 20:27:02,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:27:02,082 INFO L225 Difference]: With dead ends: 67 [2020-09-24 20:27:02,082 INFO L226 Difference]: Without dead ends: 62 [2020-09-24 20:27:02,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 20:27:02,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-24 20:27:02,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-24 20:27:02,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-24 20:27:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-09-24 20:27:02,099 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 86 [2020-09-24 20:27:02,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:27:02,100 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-09-24 20:27:02,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 20:27:02,100 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-09-24 20:27:02,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 20:27:02,101 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:27:02,101 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:27:02,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 20:27:02,102 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:27:02,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:27:02,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1527469181, now seen corresponding path program 11 times [2020-09-24 20:27:02,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:27:02,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105423640] [2020-09-24 20:27:02,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:27:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:02,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:03,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:03,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-24 20:27:03,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:03,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1026 [2020-09-24 20:27:03,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 20:27:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-24 20:27:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 20:27:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:03,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:27:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:03,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:03,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:03,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:27:03,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:03,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:27:03,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:03,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:27:03,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:03,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:27:03,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:03,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:27:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:03,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:04,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:04,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 20:27:04,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:04,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 895 [2020-09-24 20:27:04,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 20:27:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 20:27:04,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:04,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:04,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:04,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:04,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 20:27:04,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:04,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 744 [2020-09-24 20:27:04,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:04,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 20:27:04,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:04,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 20:27:04,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:04,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:04,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:05,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:05,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 20:27:05,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:05,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-09-24 20:27:05,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 20:27:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 20:27:05,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:05,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:05,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:06,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:06,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 20:27:06,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:06,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-09-24 20:27:06,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:06,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:27:06,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:06,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:27:06,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:06,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:06,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:06,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:06,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 20:27:06,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:06,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-09-24 20:27:06,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:06,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:27:06,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:06,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:27:06,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:06,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:06,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:06,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:06,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 20:27:06,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:06,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-09-24 20:27:06,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:27:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 20:27:06,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:06,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:06,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:07,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:07,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 20:27:07,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:07,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-24 20:27:07,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:27:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:07,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 20:27:07,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:07,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:07,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:07,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:07,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 20:27:07,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:07,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 20:27:07,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:07,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:27:07,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:07,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:27:07,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:07,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:07,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:07,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:07,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 20:27:07,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:07,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 20:27:07,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:27:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:27:07,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:07,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:07,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:07,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:07,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:27:07,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:07,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 20:27:07,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:27:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:27:07,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:07,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:07,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:07,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:07,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:27:07,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:07,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 20:27:07,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:27:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:27:07,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:07,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:07,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:07,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:07,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:27:07,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:07,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:27:07,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:07,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:27:07,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:07,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:27:07,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:27:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-24 20:27:07,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105423640] [2020-09-24 20:27:07,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:27:07,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-24 20:27:07,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334978813] [2020-09-24 20:27:07,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-24 20:27:07,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:27:07,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-24 20:27:07,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-24 20:27:07,827 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 27 states. [2020-09-24 20:27:08,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:27:08,625 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-24 20:27:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-24 20:27:08,626 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 93 [2020-09-24 20:27:08,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:27:08,628 INFO L225 Difference]: With dead ends: 71 [2020-09-24 20:27:08,628 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 20:27:08,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=1383, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 20:27:08,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 20:27:08,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 20:27:08,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 20:27:08,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-24 20:27:08,635 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 93 [2020-09-24 20:27:08,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:27:08,635 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-24 20:27:08,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-24 20:27:08,636 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-24 20:27:08,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-24 20:27:08,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:27:08,637 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:27:08,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 20:27:08,637 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:27:08,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:27:08,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1034648626, now seen corresponding path program 12 times [2020-09-24 20:27:08,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:27:08,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913905522] [2020-09-24 20:27:08,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:27:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:08,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:09,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:09,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 20:27:09,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:09,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1242 [2020-09-24 20:27:09,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 20:27:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:27:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 20:27:09,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:09,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:27:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:09,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:09,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:09,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:27:09,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:09,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:27:09,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:09,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:27:09,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:09,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:27:09,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:09,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:27:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:09,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:11,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:11,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 20:27:11,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:11,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1099 [2020-09-24 20:27:11,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:11,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 20:27:11,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:11,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 20:27:11,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:11,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:11,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:12,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:12,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 20:27:12,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:12,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 923 [2020-09-24 20:27:12,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 20:27:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 20:27:12,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:12,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:12,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:12,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:12,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 20:27:12,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 733 [2020-09-24 20:27:12,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 20:27:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 20:27:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:12,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:12,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:13,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:13,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 20:27:13,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:13,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 661 [2020-09-24 20:27:13,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:13,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 20:27:13,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:13,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 20:27:13,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:13,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:13,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:14,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:14,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 20:27:14,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:14,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 470 [2020-09-24 20:27:14,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:27:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:14,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:27:14,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:14,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:14,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:14,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:14,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 20:27:14,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:14,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-09-24 20:27:14,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:14,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:27:14,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:14,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:27:14,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:14,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:14,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:14,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:14,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 20:27:14,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:14,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-24 20:27:14,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:14,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:27:14,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:14,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 20:27:14,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:15,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:15,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:15,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:15,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 20:27:15,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:15,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-24 20:27:15,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:27:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 20:27:15,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:15,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:15,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:15,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:15,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 20:27:15,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:15,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-24 20:27:15,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:27:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:15,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:27:15,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:15,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:15,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:15,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:15,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 20:27:15,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:15,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 20:27:15,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:27:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:27:15,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:15,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:15,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:15,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:15,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:27:15,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:15,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 20:27:15,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:27:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:27:15,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:15,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:15,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:15,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:15,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:27:15,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:15,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 20:27:15,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:15,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:27:15,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:15,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:27:15,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:15,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:15,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:15,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:15,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:27:15,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:15,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:27:15,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:15,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:27:15,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:15,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:27:15,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:27:16,011 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-09-24 20:27:16,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913905522] [2020-09-24 20:27:16,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:27:16,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-24 20:27:16,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648026496] [2020-09-24 20:27:16,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-24 20:27:16,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:27:16,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-24 20:27:16,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-24 20:27:16,013 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 29 states. [2020-09-24 20:27:16,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:27:16,918 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-09-24 20:27:16,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-24 20:27:16,918 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 100 [2020-09-24 20:27:16,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:27:16,920 INFO L225 Difference]: With dead ends: 75 [2020-09-24 20:27:16,920 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 20:27:16,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=107, Invalid=1615, Unknown=0, NotChecked=0, Total=1722 [2020-09-24 20:27:16,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 20:27:16,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 20:27:16,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 20:27:16,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-24 20:27:16,927 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 100 [2020-09-24 20:27:16,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:27:16,928 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-24 20:27:16,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-24 20:27:16,928 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-24 20:27:16,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-24 20:27:16,929 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:27:16,929 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:27:16,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 20:27:16,929 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:27:16,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:27:16,930 INFO L82 PathProgramCache]: Analyzing trace with hash 996041487, now seen corresponding path program 13 times [2020-09-24 20:27:16,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:27:16,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223461293] [2020-09-24 20:27:16,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:27:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:16,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:18,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:18,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 20:27:18,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:18,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1418 [2020-09-24 20:27:18,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:18,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 20:27:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 20:27:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 20:27:18,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:18,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:27:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:18,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:18,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:18,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:27:18,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:18,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:27:18,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:18,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:27:18,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:18,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:27:18,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:27:18,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:27:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:18,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:19,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:19,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 20:27:19,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:19,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1311 [2020-09-24 20:27:19,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:19,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 20:27:19,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:19,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 20:27:19,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:19,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:19,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:20,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:20,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 20:27:20,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:20,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1052 [2020-09-24 20:27:20,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:20,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 20:27:20,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:20,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 20:27:20,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:20,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:20,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:21,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:21,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 20:27:21,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:21,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 974 [2020-09-24 20:27:21,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:21,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 20:27:21,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:21,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 20:27:21,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:21,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:21,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:22,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:22,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 20:27:22,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:22,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 735 [2020-09-24 20:27:22,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 20:27:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 20:27:22,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:22,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:22,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:23,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:23,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 20:27:23,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:23,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-09-24 20:27:23,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 20:27:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:23,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 20:27:23,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:23,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:23,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:23,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:23,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 20:27:23,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:23,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-09-24 20:27:23,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:27:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:27:23,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:23,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:23,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:24,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:24,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 20:27:24,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:24,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-09-24 20:27:24,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:27:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:27:24,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:24,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:24,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:24,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:24,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 20:27:24,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:24,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-24 20:27:24,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:24,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:27:24,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:24,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 20:27:24,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:24,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:24,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:24,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:24,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 20:27:24,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:24,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-24 20:27:24,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:24,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:27:24,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:24,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 20:27:24,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:24,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:24,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:25,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:25,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 20:27:25,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:25,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 20:27:25,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:25,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:27:25,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:25,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:27:25,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:25,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:25,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:25,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:25,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 20:27:25,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:25,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 20:27:25,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:25,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:27:25,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:25,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:27:25,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:27:25,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:25,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:25,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:25,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:27:25,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:25,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 20:27:25,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:25,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:27:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:27:25,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:27:25,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:25,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:25,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:25,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 20:27:25,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:25,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 20:27:25,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:25,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:27:25,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:25,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:27:25,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:25,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:25,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:25,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:25,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:27:25,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:25,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:27:25,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:27:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:25,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:27:25,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:25,697 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-09-24 20:27:25,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223461293] [2020-09-24 20:27:25,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:27:25,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-09-24 20:27:25,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807226857] [2020-09-24 20:27:25,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-24 20:27:25,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:27:25,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-24 20:27:25,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-24 20:27:25,699 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 31 states. [2020-09-24 20:27:26,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:27:26,730 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-24 20:27:26,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-24 20:27:26,730 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 107 [2020-09-24 20:27:26,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:27:26,731 INFO L225 Difference]: With dead ends: 79 [2020-09-24 20:27:26,731 INFO L226 Difference]: Without dead ends: 74 [2020-09-24 20:27:26,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=115, Invalid=1865, Unknown=0, NotChecked=0, Total=1980 [2020-09-24 20:27:26,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-24 20:27:26,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-24 20:27:26,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-24 20:27:26,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-09-24 20:27:26,738 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 107 [2020-09-24 20:27:26,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:27:26,739 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-09-24 20:27:26,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-24 20:27:26,739 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-09-24 20:27:26,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-24 20:27:26,740 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:27:26,740 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:27:26,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 20:27:26,741 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:27:26,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:27:26,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1701157728, now seen corresponding path program 14 times [2020-09-24 20:27:26,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:27:26,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537020105] [2020-09-24 20:27:26,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:27:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:26,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:28,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:28,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 20:27:28,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:28,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1730 [2020-09-24 20:27:28,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 20:27:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-24 20:27:28,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 20:27:28,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:28,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:27:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:28,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:28,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:28,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:27:28,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:28,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:27:28,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:28,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:27:28,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:28,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:27:28,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:28,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:27:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:28,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:27:30,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:27:30,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 20:27:30,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:27:30,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1515 [2020-09-24 20:27:30,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:27:30,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 20:27:30,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:27:30,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 20:27:30,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:27:30,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:27:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:27:30,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking...