/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=WIDEST --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_o1000.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:11:52,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:11:52,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:11:52,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:11:52,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:11:52,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:11:52,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:11:52,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:11:52,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:11:52,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:11:52,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:11:52,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:11:52,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:11:52,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:11:52,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:11:52,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:11:52,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:11:52,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:11:52,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:11:52,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:11:52,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:11:52,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:11:52,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:11:52,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:11:52,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:11:52,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:11:52,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:11:52,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:11:52,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:11:52,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:11:52,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:11:52,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:11:52,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:11:52,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:11:52,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:11:53,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:11:53,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:11:53,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:11:53,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:11:53,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:11:53,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:11:53,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 03:11:53,032 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:11:53,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:11:53,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:11:53,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:11:53,034 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:11:53,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:11:53,035 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:11:53,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:11:53,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:11:53,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:11:53,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:11:53,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:11:53,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:11:53,036 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:11:53,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:11:53,037 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:11:53,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:11:53,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:11:53,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:11:53,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:11:53,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:11:53,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:11:53,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:11:53,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:11:53,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:11:53,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:11:53,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:11:53,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:11:53,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:11:53,040 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:11:53,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:11:53,553 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:11:53,557 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:11:53,559 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:11:53,561 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:11:53,562 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o1000.c [2020-09-25 03:11:53,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d48f69dc2/9c0133c900ec48908be1efc8e5f917a2/FLAG4955aeb53 [2020-09-25 03:11:54,170 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:11:54,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o1000.c [2020-09-25 03:11:54,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d48f69dc2/9c0133c900ec48908be1efc8e5f917a2/FLAG4955aeb53 [2020-09-25 03:11:54,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d48f69dc2/9c0133c900ec48908be1efc8e5f917a2 [2020-09-25 03:11:54,536 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:11:54,542 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:11:54,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:11:54,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:11:54,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:11:54,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:54" (1/1) ... [2020-09-25 03:11:54,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321fecde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:54, skipping insertion in model container [2020-09-25 03:11:54,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:54" (1/1) ... [2020-09-25 03:11:54,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:11:54,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:11:54,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:11:54,803 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:11:54,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:11:54,839 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:11:54,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:54 WrapperNode [2020-09-25 03:11:54,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:11:54,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:11:54,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:11:54,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:11:54,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:54" (1/1) ... [2020-09-25 03:11:54,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:54" (1/1) ... [2020-09-25 03:11:54,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:54" (1/1) ... [2020-09-25 03:11:54,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:54" (1/1) ... [2020-09-25 03:11:54,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:54" (1/1) ... [2020-09-25 03:11:54,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:54" (1/1) ... [2020-09-25 03:11:54,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:54" (1/1) ... [2020-09-25 03:11:54,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:11:54,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:11:54,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:11:54,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:11:54,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:11:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:11:55,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:11:55,035 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 03:11:55,035 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:11:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 03:11:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:11:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 03:11:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:11:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:11:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:11:55,216 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:11:55,216 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:11:55,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:55 BoogieIcfgContainer [2020-09-25 03:11:55,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:11:55,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:11:55,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:11:55,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:11:55,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:11:54" (1/3) ... [2020-09-25 03:11:55,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c30b248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:55, skipping insertion in model container [2020-09-25 03:11:55,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:54" (2/3) ... [2020-09-25 03:11:55,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c30b248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:55, skipping insertion in model container [2020-09-25 03:11:55,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:55" (3/3) ... [2020-09-25 03:11:55,236 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o1000.c [2020-09-25 03:11:55,268 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:11:55,284 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:11:55,339 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:11:55,373 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:11:55,373 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:11:55,373 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:11:55,373 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:11:55,373 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:11:55,374 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:11:55,374 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:11:55,374 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:11:55,395 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-25 03:11:55,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 03:11:55,402 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:55,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:55,404 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:55,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:55,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-09-25 03:11:55,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:55,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690828684] [2020-09-25 03:11:55,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:55,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:11:55,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:55,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 03:11:55,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:55,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:11:55,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:55,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:11:55,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:55,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:55,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:55,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:11:55,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:55,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:55,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:55,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:55,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:55,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:55,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:55,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 03:11:55,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:55,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:55,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:55,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:55,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:11:55,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690828684] [2020-09-25 03:11:55,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:11:55,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:11:55,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415764075] [2020-09-25 03:11:55,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:11:55,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:55,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:11:55,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:11:55,844 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-25 03:11:55,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:55,970 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 03:11:55,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:11:55,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 03:11:55,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:55,995 INFO L225 Difference]: With dead ends: 37 [2020-09-25 03:11:55,995 INFO L226 Difference]: Without dead ends: 22 [2020-09-25 03:11:56,004 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 [2020-09-25 03:11:56,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-25 03:11:56,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-25 03:11:56,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-25 03:11:56,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-09-25 03:11:56,080 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-09-25 03:11:56,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:56,082 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-09-25 03:11:56,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:11:56,083 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-09-25 03:11:56,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 03:11:56,087 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:56,087 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] [2020-09-25 03:11:56,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:11:56,088 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:56,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:56,088 INFO L82 PathProgramCache]: Analyzing trace with hash 189324707, now seen corresponding path program 1 times [2020-09-25 03:11:56,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:56,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403839460] [2020-09-25 03:11:56,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:11:56,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 03:11:56,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:56,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 03:11:56,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:11:56,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:56,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:56,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:56,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:56,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:56,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:56,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:11:56,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 03:11:56,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:56,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:11:56,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:56,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:56,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 03:11:56,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:56,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:56,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:11:56,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403839460] [2020-09-25 03:11:56,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:56,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:11:56,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007858739] [2020-09-25 03:11:56,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:11:56,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:56,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:11:56,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:11:56,650 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-09-25 03:11:56,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:56,752 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-25 03:11:56,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 03:11:56,753 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-25 03:11:56,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:56,754 INFO L225 Difference]: With dead ends: 31 [2020-09-25 03:11:56,755 INFO L226 Difference]: Without dead ends: 26 [2020-09-25 03:11:56,757 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 [2020-09-25 03:11:56,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-25 03:11:56,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-25 03:11:56,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 03:11:56,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-25 03:11:56,771 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2020-09-25 03:11:56,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:56,772 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-25 03:11:56,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:11:56,773 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-25 03:11:56,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 03:11:56,776 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:56,776 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] [2020-09-25 03:11:56,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:11:56,777 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:56,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:56,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1416732684, now seen corresponding path program 2 times [2020-09-25 03:11:56,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:56,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917916467] [2020-09-25 03:11:56,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:57,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:57,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 03:11:57,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:57,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 03:11:57,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:11:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 03:11:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 03:11:57,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:57,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:57,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:57,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:57,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:57,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:57,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:57,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:57,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:57,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:57,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:57,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:57,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:57,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:57,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:57,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:11:57,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:57,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 03:11:57,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:57,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:57,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:57,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:11:57,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:57,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:57,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:57,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:57,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:11:57,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:57,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 03:11:57,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:57,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:57,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:57,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:11:57,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:57,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:57,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:57,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:57,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:57,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:57,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:11:57,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:57,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:57,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:57,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:57,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 03:11:57,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917916467] [2020-09-25 03:11:57,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:57,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 03:11:57,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605894221] [2020-09-25 03:11:57,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:11:57,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:57,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:11:57,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:11:57,366 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-25 03:11:57,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:57,463 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-09-25 03:11:57,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:11:57,464 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-25 03:11:57,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:57,465 INFO L225 Difference]: With dead ends: 35 [2020-09-25 03:11:57,465 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 03:11:57,466 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 [2020-09-25 03:11:57,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 03:11:57,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 03:11:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 03:11:57,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-25 03:11:57,473 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 30 [2020-09-25 03:11:57,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:57,473 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-25 03:11:57,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:11:57,473 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-25 03:11:57,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 03:11:57,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:57,475 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] [2020-09-25 03:11:57,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:11:57,475 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:57,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:57,476 INFO L82 PathProgramCache]: Analyzing trace with hash -209476043, now seen corresponding path program 3 times [2020-09-25 03:11:57,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:57,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431610660] [2020-09-25 03:11:57,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:57,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:57,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:57,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 03:11:57,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:57,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 03:11:57,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:57,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:11:57,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 03:11:57,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:57,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:57,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:57,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:57,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:57,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:57,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:57,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:57,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:57,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:57,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:57,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:57,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:57,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:11:57,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:57,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-25 03:11:57,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:57,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:11:57,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:57,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:58,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:58,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:58,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:11:58,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:58,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 03:11:58,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:58,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:11:58,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:58,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:58,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:58,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:58,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:11:58,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:58,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 03:11:58,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:58,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:11:58,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:58,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:58,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:58,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:58,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:58,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:58,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:11:58,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:58,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:58,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:58,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:58,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 03:11:58,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431610660] [2020-09-25 03:11:58,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:58,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:11:58,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438724122] [2020-09-25 03:11:58,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:11:58,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:58,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:11:58,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:11:58,340 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-25 03:11:58,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:58,487 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 03:11:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:11:58,487 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-25 03:11:58,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:58,489 INFO L225 Difference]: With dead ends: 39 [2020-09-25 03:11:58,490 INFO L226 Difference]: Without dead ends: 34 [2020-09-25 03:11:58,490 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 [2020-09-25 03:11:58,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-25 03:11:58,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-09-25 03:11:58,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-25 03:11:58,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-25 03:11:58,506 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 37 [2020-09-25 03:11:58,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:58,506 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-25 03:11:58,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:11:58,508 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-25 03:11:58,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 03:11:58,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:58,511 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] [2020-09-25 03:11:58,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:11:58,511 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:58,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:58,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1007399302, now seen corresponding path program 4 times [2020-09-25 03:11:58,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:58,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013667813] [2020-09-25 03:11:58,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:58,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:58,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:58,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:11:58,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:58,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-09-25 03:11:58,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 03:11:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 03:11:58,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:58,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:58,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:58,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:58,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:58,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:58,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:58,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:58,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:58,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:58,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:59,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:59,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:11:59,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-25 03:11:59,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:59,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:11:59,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:59,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:59,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:59,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:59,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:11:59,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:59,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 03:11:59,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:59,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:59,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:59,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:11:59,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:59,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:59,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:59,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:59,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:11:59,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:59,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 03:11:59,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:11:59,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:59,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:59,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:59,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:59,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:11:59,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:59,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 03:11:59,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:59,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:59,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:59,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:11:59,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:59,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:59,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:59,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:59,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:59,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:11:59,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:59,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 03:11:59,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013667813] [2020-09-25 03:11:59,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:59,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 03:11:59,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949357555] [2020-09-25 03:11:59,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 03:11:59,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:59,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 03:11:59,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:11:59,748 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 13 states. [2020-09-25 03:12:00,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:00,002 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-25 03:12:00,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 03:12:00,004 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-25 03:12:00,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:00,006 INFO L225 Difference]: With dead ends: 43 [2020-09-25 03:12:00,006 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 03:12:00,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-25 03:12:00,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 03:12:00,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 03:12:00,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 03:12:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 03:12:00,021 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 44 [2020-09-25 03:12:00,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:00,023 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 03:12:00,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 03:12:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 03:12:00,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 03:12:00,030 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:00,030 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] [2020-09-25 03:12:00,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:12:00,031 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:00,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:00,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1787659065, now seen corresponding path program 5 times [2020-09-25 03:12:00,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:00,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81390703] [2020-09-25 03:12:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:00,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:00,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:00,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 03:12:00,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:00,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-25 03:12:00,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:00,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:12:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 03:12:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:12:00,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:12:00,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:00,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:00,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:00,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:00,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:00,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:00,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:00,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:00,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:00,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:00,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:00,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:00,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:00,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:00,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:12:00,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:00,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-09-25 03:12:00,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:00,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:12:00,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:00,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:12:00,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:00,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:00,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:01,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:01,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:12:01,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:01,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-25 03:12:01,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:01,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:01,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:01,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:01,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:01,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:12:01,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:01,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 03:12:01,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:12:01,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:01,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:12:01,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:01,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:01,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:01,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:01,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:01,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:12:01,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:01,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 03:12:01,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:01,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:01,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:01,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:12:01,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:01,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:01,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:01,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:01,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:12:01,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:01,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 03:12:01,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:12:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:12:01,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:01,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:01,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:01,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:01,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:12:01,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:01,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:12:01,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:12:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:12:01,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:01,662 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-25 03:12:01,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81390703] [2020-09-25 03:12:01,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:01,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 03:12:01,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261970883] [2020-09-25 03:12:01,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 03:12:01,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:01,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 03:12:01,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:12:01,665 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 15 states. [2020-09-25 03:12:01,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:01,897 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-25 03:12:01,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 03:12:01,898 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-09-25 03:12:01,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:01,899 INFO L225 Difference]: With dead ends: 47 [2020-09-25 03:12:01,899 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 03:12:01,900 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 [2020-09-25 03:12:01,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 03:12:01,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 03:12:01,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 03:12:01,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-25 03:12:01,907 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 51 [2020-09-25 03:12:01,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:01,908 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-25 03:12:01,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 03:12:01,908 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-25 03:12:01,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 03:12:01,909 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:01,909 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] [2020-09-25 03:12:01,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:12:01,910 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:01,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:01,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1360883432, now seen corresponding path program 6 times [2020-09-25 03:12:01,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:01,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887229836] [2020-09-25 03:12:01,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:01,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:02,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:02,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 03:12:02,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:02,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 545 [2020-09-25 03:12:02,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:02,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:12:02,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 03:12:02,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:12:02,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:02,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:02,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:02,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:02,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:02,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:02,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:02,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:02,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:02,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:02,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:02,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:02,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:02,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:02,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 03:12:02,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:02,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-25 03:12:02,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 03:12:02,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:02,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:02,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:03,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:03,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:12:03,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:03,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-25 03:12:03,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:12:03,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:03,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:12:03,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:03,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:03,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:03,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:03,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:12:03,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:03,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 03:12:03,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:03,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:03,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:03,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:03,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:03,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:03,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:03,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:03,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:12:03,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:03,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 03:12:03,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:12:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:03,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:12:03,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:03,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:03,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:03,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:03,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:12:03,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:03,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 03:12:03,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:03,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:03,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:03,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:12:03,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:03,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:03,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:03,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:03,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:12:03,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:03,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 03:12:03,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:03,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:12:03,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:03,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:12:03,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:04,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:04,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:04,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:04,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:12:04,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 03:12:04,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:12:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:12:04,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:04,090 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-25 03:12:04,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887229836] [2020-09-25 03:12:04,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:04,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 03:12:04,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768008527] [2020-09-25 03:12:04,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 03:12:04,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:04,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 03:12:04,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:12:04,093 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-09-25 03:12:04,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:04,424 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-25 03:12:04,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 03:12:04,425 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-25 03:12:04,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:04,427 INFO L225 Difference]: With dead ends: 51 [2020-09-25 03:12:04,427 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 03:12:04,428 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 [2020-09-25 03:12:04,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 03:12:04,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-25 03:12:04,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-25 03:12:04,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-25 03:12:04,435 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 58 [2020-09-25 03:12:04,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:04,435 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-25 03:12:04,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 03:12:04,435 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-25 03:12:04,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 03:12:04,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:04,437 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] [2020-09-25 03:12:04,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:12:04,437 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:04,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:04,438 INFO L82 PathProgramCache]: Analyzing trace with hash -807968423, now seen corresponding path program 7 times [2020-09-25 03:12:04,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:04,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856722889] [2020-09-25 03:12:04,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:04,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:05,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:05,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 03:12:05,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:05,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 655 [2020-09-25 03:12:05,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 03:12:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 03:12:05,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 03:12:05,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:05,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:05,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:05,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:05,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:05,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:05,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:05,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:05,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:05,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:05,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:05,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:05,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:05,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 03:12:05,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:05,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-09-25 03:12:05,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:05,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:12:05,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:05,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:12:05,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:05,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:05,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:06,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:06,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 03:12:06,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:06,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-09-25 03:12:06,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:06,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:06,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:06,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 03:12:06,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:06,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:06,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:06,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:06,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:12:06,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:06,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 03:12:06,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:06,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:12:06,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:06,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:12:06,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:06,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:06,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:06,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:06,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:12:06,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:06,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-25 03:12:06,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:06,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:06,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:06,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:06,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:06,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:12:06,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:06,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 03:12:06,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:06,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:12:06,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:06,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:12:06,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:06,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:06,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:07,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:07,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:12:07,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:07,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 03:12:07,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:07,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:07,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:07,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:12:07,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:07,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:07,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:07,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:07,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:12:07,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:07,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 03:12:07,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:07,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:12:07,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:07,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:12:07,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:07,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:07,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:07,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:07,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:12:07,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:07,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 03:12:07,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:07,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:12:07,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:07,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:12:07,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-25 03:12:07,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856722889] [2020-09-25 03:12:07,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:07,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 03:12:07,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807687591] [2020-09-25 03:12:07,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 03:12:07,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:07,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 03:12:07,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:12:07,282 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-25 03:12:07,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:07,626 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-25 03:12:07,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 03:12:07,628 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-09-25 03:12:07,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:07,629 INFO L225 Difference]: With dead ends: 55 [2020-09-25 03:12:07,629 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 03:12:07,633 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 [2020-09-25 03:12:07,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 03:12:07,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-25 03:12:07,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 03:12:07,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-25 03:12:07,646 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 65 [2020-09-25 03:12:07,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:07,647 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-25 03:12:07,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 03:12:07,649 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-25 03:12:07,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 03:12:07,650 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:07,650 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] [2020-09-25 03:12:07,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:12:07,651 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:07,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:07,651 INFO L82 PathProgramCache]: Analyzing trace with hash -705364310, now seen corresponding path program 8 times [2020-09-25 03:12:07,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:07,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868355744] [2020-09-25 03:12:07,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:07,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:08,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:08,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-25 03:12:08,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:08,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 769 [2020-09-25 03:12:08,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 03:12:08,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 03:12:08,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:12:08,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:08,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:08,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:08,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:08,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:08,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:08,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:08,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:08,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:08,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:08,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:08,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:09,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:09,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 03:12:09,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:09,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-09-25 03:12:09,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:12:09,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:09,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:09,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:09,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:09,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 03:12:09,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:09,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-09-25 03:12:09,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:09,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:12:09,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:09,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:12:09,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:09,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:09,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:10,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:10,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 03:12:10,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:10,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-09-25 03:12:10,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:10,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:10,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:10,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 03:12:10,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:10,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:10,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:10,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:10,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:12:10,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:10,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 03:12:10,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:12:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:12:10,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:10,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:10,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:10,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:10,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:12:10,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:10,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-25 03:12:10,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:10,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:10,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:10,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:10,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:12:10,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:10,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 03:12:10,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:10,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:12:10,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:10,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:12:10,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:10,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:10,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:10,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:10,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:12:10,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:10,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 03:12:10,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:10,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:10,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:10,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:12:10,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:10,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:10,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:11,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:11,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:12:11,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:11,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 03:12:11,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:12:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:11,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:12:11,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:11,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:11,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:11,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:11,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:12:11,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:11,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:12:11,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:12:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:11,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:12:11,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:11,154 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-25 03:12:11,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868355744] [2020-09-25 03:12:11,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:11,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-25 03:12:11,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354025004] [2020-09-25 03:12:11,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-25 03:12:11,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:11,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-25 03:12:11,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-25 03:12:11,163 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-25 03:12:11,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:11,589 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 03:12:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 03:12:11,590 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-25 03:12:11,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:11,591 INFO L225 Difference]: With dead ends: 59 [2020-09-25 03:12:11,591 INFO L226 Difference]: Without dead ends: 54 [2020-09-25 03:12:11,592 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 [2020-09-25 03:12:11,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-25 03:12:11,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-25 03:12:11,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 03:12:11,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-25 03:12:11,605 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 72 [2020-09-25 03:12:11,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:11,605 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-25 03:12:11,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-25 03:12:11,606 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-25 03:12:11,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 03:12:11,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:11,612 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] [2020-09-25 03:12:11,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:12:11,613 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:11,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:11,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1418439701, now seen corresponding path program 9 times [2020-09-25 03:12:11,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:11,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104771330] [2020-09-25 03:12:11,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:11,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:12,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:12,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 03:12:12,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:12,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 871 [2020-09-25 03:12:12,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 03:12:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 03:12:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:12,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:12,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:12,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:12,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:12,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:12,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:12,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:12,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:12,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:12,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:12,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:13,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:13,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 03:12:13,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:13,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 826 [2020-09-25 03:12:13,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:13,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:12:13,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:13,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 03:12:13,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:13,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:13,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:14,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:14,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 03:12:14,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:14,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 612 [2020-09-25 03:12:14,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:14,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:14,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:14,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:12:14,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 03:12:14,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:14,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:14,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:14,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 03:12:14,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:14,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 478 [2020-09-25 03:12:14,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:12:14,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:14,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:12:14,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:14,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:14,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:15,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:15,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 03:12:15,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:15,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-09-25 03:12:15,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:15,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:15,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:15,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 03:12:15,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:15,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:15,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:15,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:15,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:12:15,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:15,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 03:12:15,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:15,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:12:15,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:15,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:12:15,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:15,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:15,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:15,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:15,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:12:15,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 03:12:15,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:15,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:15,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:15,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:15,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:15,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:15,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:12:15,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:15,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 03:12:15,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:12:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:12:15,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:15,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:15,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:15,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:15,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:12:15,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:15,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 03:12:15,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:15,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:12:15,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:15,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:15,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:15,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:15,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:12:15,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:15,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 03:12:15,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:15,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:12:15,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:15,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:12:15,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:16,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:16,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:16,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:16,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:12:16,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:16,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:12:16,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:12:16,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:16,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:12:16,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:16,131 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-25 03:12:16,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104771330] [2020-09-25 03:12:16,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:16,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 03:12:16,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623527579] [2020-09-25 03:12:16,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 03:12:16,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:16,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 03:12:16,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-25 03:12:16,134 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 23 states. [2020-09-25 03:12:16,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:16,628 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-25 03:12:16,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 03:12:16,629 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-25 03:12:16,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:16,630 INFO L225 Difference]: With dead ends: 63 [2020-09-25 03:12:16,630 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 03:12:16,633 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 [2020-09-25 03:12:16,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 03:12:16,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 03:12:16,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 03:12:16,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 03:12:16,641 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 79 [2020-09-25 03:12:16,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:16,642 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 03:12:16,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 03:12:16,643 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 03:12:16,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 03:12:16,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:16,647 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] [2020-09-25 03:12:16,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 03:12:16,648 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:16,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:16,648 INFO L82 PathProgramCache]: Analyzing trace with hash -182126020, now seen corresponding path program 10 times [2020-09-25 03:12:16,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:16,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531679945] [2020-09-25 03:12:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:16,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:17,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:17,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 03:12:17,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:17,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 990 [2020-09-25 03:12:17,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:17,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 03:12:17,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 03:12:17,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:12:17,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:17,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:17,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:17,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:17,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:17,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:17,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:17,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:17,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:17,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:17,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:17,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:17,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:17,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:18,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:18,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:12:18,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:18,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 764 [2020-09-25 03:12:18,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:18,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:12:18,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:18,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 03:12:18,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:18,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:18,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:19,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:19,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 03:12:19,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:19,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-09-25 03:12:19,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:19,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:12:19,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:19,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 03:12:19,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:19,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:19,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:19,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:19,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 03:12:19,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:19,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 520 [2020-09-25 03:12:19,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:12:19,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:19,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:19,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:20,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:20,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 03:12:20,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:20,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-09-25 03:12:20,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:20,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:12:20,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:20,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:12:20,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:20,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:20,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:20,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:20,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 03:12:20,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:20,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 03:12:20,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:20,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 03:12:20,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:20,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:20,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:20,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:20,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:12:20,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:20,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 03:12:20,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:20,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:12:20,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:20,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:12:20,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:20,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:20,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:21,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:21,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:12:21,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:21,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-25 03:12:21,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:21,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:21,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:21,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:21,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:21,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:21,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:21,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:21,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:12:21,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:21,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 03:12:21,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:12:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:12:21,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:21,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:21,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:21,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:21,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:12:21,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 03:12:21,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:12:21,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:21,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:21,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:21,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:21,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:12:21,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:21,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 03:12:21,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:21,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:12:21,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:21,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:12:21,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:21,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:21,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:21,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:21,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:12:21,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:21,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:12:21,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:21,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:12:21,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:21,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:12:21,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:21,658 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-25 03:12:21,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531679945] [2020-09-25 03:12:21,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:21,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 03:12:21,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243079653] [2020-09-25 03:12:21,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 03:12:21,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:21,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 03:12:21,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-25 03:12:21,661 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 25 states. [2020-09-25 03:12:22,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:22,398 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-25 03:12:22,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-25 03:12:22,399 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2020-09-25 03:12:22,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:22,401 INFO L225 Difference]: With dead ends: 67 [2020-09-25 03:12:22,401 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 03:12:22,403 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 [2020-09-25 03:12:22,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 03:12:22,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-25 03:12:22,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 03:12:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-09-25 03:12:22,409 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 86 [2020-09-25 03:12:22,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:22,409 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-09-25 03:12:22,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 03:12:22,410 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-09-25 03:12:22,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-25 03:12:22,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:22,411 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] [2020-09-25 03:12:22,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 03:12:22,411 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:22,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:22,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1527469181, now seen corresponding path program 11 times [2020-09-25 03:12:22,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:22,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086206825] [2020-09-25 03:12:22,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:22,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:23,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:23,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-25 03:12:23,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:23,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1035 [2020-09-25 03:12:23,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:23,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 03:12:23,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 03:12:23,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:12:23,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:23,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:23,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:23,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:23,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:23,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:23,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:23,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:23,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:23,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:23,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:23,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:23,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:23,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:24,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:24,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 03:12:24,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:24,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 905 [2020-09-25 03:12:24,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:24,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 03:12:24,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:24,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 03:12:24,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:24,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:24,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:25,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:25,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:12:25,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:25,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 782 [2020-09-25 03:12:25,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:25,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:12:25,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:25,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 03:12:25,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:25,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:25,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:25,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:25,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 03:12:25,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:25,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-09-25 03:12:25,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:25,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:12:25,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:25,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 03:12:25,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:25,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:25,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:26,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:26,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 03:12:26,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:26,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-09-25 03:12:26,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:26,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:12:26,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:26,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:26,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:26,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:26,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 03:12:26,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:26,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-09-25 03:12:26,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:12:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:12:26,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:26,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:26,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:27,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:27,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 03:12:27,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:27,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 03:12:27,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:27,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:27,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:27,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 03:12:27,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:27,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:27,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:27,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:27,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:12:27,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:27,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-25 03:12:27,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:27,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:12:27,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:27,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:12:27,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:27,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:27,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:27,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:27,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:12:27,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:27,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-25 03:12:27,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:27,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:27,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:27,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:27,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:27,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:27,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:27,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:12:27,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:27,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 03:12:27,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:27,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:12:27,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:27,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:12:27,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:27,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:27,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:27,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:27,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:12:27,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:27,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 03:12:27,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:27,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:27,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:27,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:12:27,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:28,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:28,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:28,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:28,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:12:28,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:28,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 03:12:28,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:28,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:12:28,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:28,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:12:28,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:28,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:28,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:28,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:28,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:12:28,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:28,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:12:28,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:12:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:12:28,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-25 03:12:28,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086206825] [2020-09-25 03:12:28,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:28,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-25 03:12:28,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44041162] [2020-09-25 03:12:28,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-25 03:12:28,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:28,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-25 03:12:28,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-25 03:12:28,268 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 27 states. [2020-09-25 03:12:29,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:29,114 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-25 03:12:29,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-25 03:12:29,115 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 93 [2020-09-25 03:12:29,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:29,117 INFO L225 Difference]: With dead ends: 71 [2020-09-25 03:12:29,117 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 03:12:29,118 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 [2020-09-25 03:12:29,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 03:12:29,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-25 03:12:29,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-25 03:12:29,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-25 03:12:29,134 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 93 [2020-09-25 03:12:29,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:29,134 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-25 03:12:29,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-25 03:12:29,135 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-25 03:12:29,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-25 03:12:29,136 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:29,136 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] [2020-09-25 03:12:29,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 03:12:29,136 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:29,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:29,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1034648626, now seen corresponding path program 12 times [2020-09-25 03:12:29,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:29,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539523781] [2020-09-25 03:12:29,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:29,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:30,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:30,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 03:12:30,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:30,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1243 [2020-09-25 03:12:30,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:30,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 03:12:30,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 03:12:30,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 03:12:30,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:30,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:30,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:30,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:30,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:30,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:30,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:30,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:30,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:30,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:30,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:30,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:30,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:30,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:31,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:31,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 03:12:31,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:31,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1083 [2020-09-25 03:12:31,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:12:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 03:12:31,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:31,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:31,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:32,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:32,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 03:12:32,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:32,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1143 [2020-09-25 03:12:32,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:32,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 03:12:32,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:32,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 03:12:32,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:32,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:32,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:33,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:33,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:12:33,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:33,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 744 [2020-09-25 03:12:33,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:33,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:12:33,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:33,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 03:12:33,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:33,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:33,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:34,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:34,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 03:12:34,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:34,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 638 [2020-09-25 03:12:34,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:34,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:12:34,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:34,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 03:12:34,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:34,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:34,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:34,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:34,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 03:12:34,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:34,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-09-25 03:12:34,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:12:34,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:34,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:34,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:35,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:35,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 03:12:35,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:35,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-09-25 03:12:35,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:35,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:12:35,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:35,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:12:35,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:35,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:35,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:35,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:35,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 03:12:35,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:35,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 03:12:35,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:35,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:35,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:35,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 03:12:35,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:35,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:35,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:35,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:35,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:12:35,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:35,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-25 03:12:35,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:35,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:12:35,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:35,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:12:35,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:35,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:35,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:36,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:36,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:12:36,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:36,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 03:12:36,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:36,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:36,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:36,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:36,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:12:36,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:36,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 03:12:36,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:12:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:12:36,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:36,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:36,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:36,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:36,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:12:36,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:36,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 03:12:36,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:36,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:36,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:36,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:12:36,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:36,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:36,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:36,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:36,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:12:36,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:36,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 03:12:36,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:36,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:12:36,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:36,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:12:36,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:36,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:36,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:36,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:36,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:12:36,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:36,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:12:36,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:36,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:12:36,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:36,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:12:36,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:36,700 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-09-25 03:12:36,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539523781] [2020-09-25 03:12:36,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:36,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-25 03:12:36,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739855605] [2020-09-25 03:12:36,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-25 03:12:36,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:36,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-25 03:12:36,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-25 03:12:36,704 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 29 states. [2020-09-25 03:12:37,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:37,697 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-09-25 03:12:37,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-25 03:12:37,698 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 100 [2020-09-25 03:12:37,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:37,699 INFO L225 Difference]: With dead ends: 75 [2020-09-25 03:12:37,699 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 03:12:37,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=107, Invalid=1615, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 03:12:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 03:12:37,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-25 03:12:37,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-25 03:12:37,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-25 03:12:37,715 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 100 [2020-09-25 03:12:37,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:37,715 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-25 03:12:37,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-25 03:12:37,715 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-25 03:12:37,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 03:12:37,720 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:37,720 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] [2020-09-25 03:12:37,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 03:12:37,720 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:37,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:37,721 INFO L82 PathProgramCache]: Analyzing trace with hash 996041487, now seen corresponding path program 13 times [2020-09-25 03:12:37,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:37,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688308313] [2020-09-25 03:12:37,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:37,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:39,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:39,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 03:12:39,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:39,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1493 [2020-09-25 03:12:39,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:39,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 03:12:39,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 03:12:39,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:12:39,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:39,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:39,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:39,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:39,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:39,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:39,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:39,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:39,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:39,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:39,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:39,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:39,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:39,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:40,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:40,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 03:12:40,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:40,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1334 [2020-09-25 03:12:40,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:40,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 03:12:40,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:40,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-25 03:12:40,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:40,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:40,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:41,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:41,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 03:12:41,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:41,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1102 [2020-09-25 03:12:41,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:41,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:12:41,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:41,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 03:12:41,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:41,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:41,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:43,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:43,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 03:12:43,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:43,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1264 [2020-09-25 03:12:43,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:43,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 03:12:43,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:43,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 03:12:43,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:43,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:43,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:43,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:43,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:12:43,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:43,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 778 [2020-09-25 03:12:43,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:43,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:12:43,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:43,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 03:12:43,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:44,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:44,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:44,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:44,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 03:12:44,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:44,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 608 [2020-09-25 03:12:44,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:44,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:12:44,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:44,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 03:12:44,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:44,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:44,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:45,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:45,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 03:12:45,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:45,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-09-25 03:12:45,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:45,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:45,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:45,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:12:45,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:45,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:45,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:45,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:45,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 03:12:45,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:45,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 525 [2020-09-25 03:12:45,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:45,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:12:45,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:45,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:12:45,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:45,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:45,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:46,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:46,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 03:12:46,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:46,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-09-25 03:12:46,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:46,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:46,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:46,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 03:12:46,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:46,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:46,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:46,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:46,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:12:46,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:46,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 03:12:46,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:46,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:12:46,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:46,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:12:46,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:46,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:46,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:46,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:46,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:12:46,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:46,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 03:12:46,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:46,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:46,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:46,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:46,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:46,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:46,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:46,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:46,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:12:46,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:46,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 03:12:46,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:46,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:12:46,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:46,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:12:46,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:47,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:47,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:47,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:47,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:12:47,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:47,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 03:12:47,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:47,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:12:47,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:47,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:47,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:47,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:47,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:12:47,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:47,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 03:12:47,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:47,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:12:47,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:47,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:12:47,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:47,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:47,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:47,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:47,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:12:47,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:47,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:12:47,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:47,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:12:47,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:47,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:12:47,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:47,441 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-09-25 03:12:47,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688308313] [2020-09-25 03:12:47,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:47,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-09-25 03:12:47,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472158146] [2020-09-25 03:12:47,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-25 03:12:47,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:47,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-25 03:12:47,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-25 03:12:47,446 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 31 states.