/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:44:36,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:44:36,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:44:36,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:44:36,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:44:36,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:44:36,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:44:36,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:44:36,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:44:36,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:44:36,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:44:36,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:44:36,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:44:36,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:44:36,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:44:36,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:44:36,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:44:36,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:44:36,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:44:36,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:44:36,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:44:36,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:44:36,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:44:36,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:44:36,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:44:36,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:44:36,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:44:36,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:44:36,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:44:36,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:44:36,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:44:36,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:44:36,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:44:36,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:44:36,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:44:36,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:44:36,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:44:36,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:44:36,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:44:36,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:44:36,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:44:36,991 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 [2020-10-28 17:44:37,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:44:37,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:44:37,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:44:37,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:44:37,020 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:44:37,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:44:37,021 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:44:37,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:44:37,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:44:37,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:44:37,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:44:37,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:44:37,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:44:37,022 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:44:37,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:44:37,023 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:44:37,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:44:37,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:44:37,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:44:37,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:44:37,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:44:37,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:44:37,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:44:37,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:44:37,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:44:37,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:44:37,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:44:37,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:44:37,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:44:37,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:44:37,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:44:37,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:44:37,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:44:37,436 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:44:37,437 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:44:37,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.UNBOUNDED.pals.c [2020-10-28 17:44:37,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8cae75ff/971297c1c8b848fcaa6edc6ebee4b321/FLAGbab5d1ad8 [2020-10-28 17:44:38,185 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:44:38,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.UNBOUNDED.pals.c [2020-10-28 17:44:38,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8cae75ff/971297c1c8b848fcaa6edc6ebee4b321/FLAGbab5d1ad8 [2020-10-28 17:44:38,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8cae75ff/971297c1c8b848fcaa6edc6ebee4b321 [2020-10-28 17:44:38,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:44:38,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:44:38,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:44:38,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:44:38,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:44:38,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:44:38" (1/1) ... [2020-10-28 17:44:38,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e226b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:44:38, skipping insertion in model container [2020-10-28 17:44:38,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:44:38" (1/1) ... [2020-10-28 17:44:38,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:44:38,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:44:38,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:44:38,767 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:44:38,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:44:38,869 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:44:38,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:44:38 WrapperNode [2020-10-28 17:44:38,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:44:38,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:44:38,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:44:38,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:44:38,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:44:38" (1/1) ... [2020-10-28 17:44:38,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:44:38" (1/1) ... [2020-10-28 17:44:38,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:44:38" (1/1) ... [2020-10-28 17:44:38,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:44:38" (1/1) ... [2020-10-28 17:44:38,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:44:38" (1/1) ... [2020-10-28 17:44:38,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:44:38" (1/1) ... [2020-10-28 17:44:38,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:44:38" (1/1) ... [2020-10-28 17:44:38,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:44:38,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:44:38,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:44:38,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:44:38,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:44:38" (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 [2020-10-28 17:44:39,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:44:39,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:44:39,071 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:44:39,072 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 17:44:39,072 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-28 17:44:39,072 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-28 17:44:39,072 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-28 17:44:39,072 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-28 17:44:39,072 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-28 17:44:39,073 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 17:44:39,073 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-28 17:44:39,073 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:44:39,073 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 17:44:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:44:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:44:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:44:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:44:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 17:44:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 17:44:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 17:44:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 17:44:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 17:44:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 17:44:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 17:44:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-28 17:44:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-28 17:44:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-28 17:44:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-28 17:44:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-28 17:44:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 17:44:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 17:44:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:44:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:44:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:44:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:44:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:44:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:44:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:44:39,702 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:44:39,702 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 17:44:39,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:44:39 BoogieIcfgContainer [2020-10-28 17:44:39,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:44:39,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:44:39,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:44:39,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:44:39,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:44:38" (1/3) ... [2020-10-28 17:44:39,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79edc363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:44:39, skipping insertion in model container [2020-10-28 17:44:39,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:44:38" (2/3) ... [2020-10-28 17:44:39,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79edc363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:44:39, skipping insertion in model container [2020-10-28 17:44:39,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:44:39" (3/3) ... [2020-10-28 17:44:39,715 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c [2020-10-28 17:44:39,728 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:44:39,734 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:44:39,750 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:44:39,783 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:44:39,783 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:44:39,783 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:44:39,784 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:44:39,784 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:44:39,784 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:44:39,784 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:44:39,784 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:44:39,808 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-10-28 17:44:39,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-28 17:44:39,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:44:39,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:44:39,821 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:44:39,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:44:39,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1494883357, now seen corresponding path program 1 times [2020-10-28 17:44:39,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:44:39,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401029666] [2020-10-28 17:44:39,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:44:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:40,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:40,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:40,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-28 17:44:40,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:40,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-10-28 17:44:40,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:40,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-28 17:44:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:40,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-28 17:44:41,017 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:44:41,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:44:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:41,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:41,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:41,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:44:41,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:41,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 17:44:41,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:41,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:41,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:41,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:41,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:44:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:41,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:41,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:41,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:44:41,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:41,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:44:41,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:41,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:41,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:41,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:41,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:41,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 17:44:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:41,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:41,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:41,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:44:41,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:41,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:44:41,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:41,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:41,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:41,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:44:41,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:41,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:41,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 17:44:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:41,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:41,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:41,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:41,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:41,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:44:41,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:41,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:44:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:41,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 17:44:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:41,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:41,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:41,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:41,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:41,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:44:41,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:41,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:44:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:41,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:41,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 17:44:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:41,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:41,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:41,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:41,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:41,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:44:41,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:41,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:44:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:41,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:41,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 17:44:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:41,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:41,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:41,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:41,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:41,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:44:41,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:41,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:41,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:41,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:44:41,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:41,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:41,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 17:44:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:41,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:41,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:41,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:41,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:41,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:44:41,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:41,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:44:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:41,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 17:44:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:41,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:41,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:41,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:44:41,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:41,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:44:41,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:41,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:41,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:41,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:44:41,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:41,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:41,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:44:41,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401029666] [2020-10-28 17:44:41,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:44:41,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 17:44:41,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783042603] [2020-10-28 17:44:41,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 17:44:41,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:44:41,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 17:44:41,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-28 17:44:41,382 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 8 states. [2020-10-28 17:44:42,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:44:42,428 INFO L93 Difference]: Finished difference Result 217 states and 318 transitions. [2020-10-28 17:44:42,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 17:44:42,430 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-28 17:44:42,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:44:42,441 INFO L225 Difference]: With dead ends: 217 [2020-10-28 17:44:42,442 INFO L226 Difference]: Without dead ends: 128 [2020-10-28 17:44:42,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:44:42,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-28 17:44:42,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2020-10-28 17:44:42,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-28 17:44:42,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2020-10-28 17:44:42,506 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 68 [2020-10-28 17:44:42,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:44:42,507 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2020-10-28 17:44:42,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 17:44:42,507 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2020-10-28 17:44:42,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-28 17:44:42,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:44:42,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:44:42,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:44:42,511 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:44:42,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:44:42,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1938784031, now seen corresponding path program 1 times [2020-10-28 17:44:42,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:44:42,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402641927] [2020-10-28 17:44:42,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:44:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:42,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:43,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:43,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-28 17:44:43,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:43,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-10-28 17:44:43,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:43,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:43,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:44:43,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 17:44:43,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:44:43,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:43,705 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:44:43,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:44:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:43,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:43,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:43,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:44:43,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:43,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:44:43,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:43,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:43,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:43,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:43,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:43,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:43,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:44:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:43,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:43,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:43,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:44:43,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:43,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:44:43,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:43,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:44:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:44:43,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:43,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 17:44:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:43,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:43,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:43,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:44:43,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:43,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:44:43,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:43,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:44:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:44:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:44:43,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:43,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 17:44:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:44,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:44,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:44,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:44,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:44,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:44:44,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:44,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:44,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:44,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:44:44,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:44,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:44,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 17:44:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:44,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:44,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:44,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:44,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:44,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:44:44,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:44,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:44,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:44,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:44:44,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:44,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:44,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 17:44:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:44,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:44,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:44,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:44,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:44,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:44:44,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:44,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:44,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:44,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:44:44,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:44,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:44,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 17:44:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:44,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:44,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:44,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:44,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:44,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:44:44,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:44,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:44,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:44,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:44:44,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:44,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:44,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 17:44:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:44,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:44,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:44,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:44,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:44,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:44:44,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:44,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:44,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:44,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:44:44,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:44,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:44,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 17:44:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:44,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:44,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:44,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:44:44,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:44,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:44:44,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:44,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:44,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:44,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:44:44,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:44,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:44:44,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402641927] [2020-10-28 17:44:44,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:44:44,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-28 17:44:44,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145384946] [2020-10-28 17:44:44,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 17:44:44,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:44:44,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 17:44:44,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-28 17:44:44,261 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand 14 states. [2020-10-28 17:44:44,692 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-28 17:44:44,985 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-28 17:44:45,393 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-28 17:44:45,690 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-28 17:44:47,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:44:47,551 INFO L93 Difference]: Finished difference Result 212 states and 306 transitions. [2020-10-28 17:44:47,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 17:44:47,551 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-28 17:44:47,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:44:47,554 INFO L225 Difference]: With dead ends: 212 [2020-10-28 17:44:47,554 INFO L226 Difference]: Without dead ends: 128 [2020-10-28 17:44:47,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:44:47,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-28 17:44:47,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2020-10-28 17:44:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-28 17:44:47,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 158 transitions. [2020-10-28 17:44:47,590 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 158 transitions. Word has length 68 [2020-10-28 17:44:47,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:44:47,590 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 158 transitions. [2020-10-28 17:44:47,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 17:44:47,594 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 158 transitions. [2020-10-28 17:44:47,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-28 17:44:47,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:44:47,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:44:47,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:44:47,606 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:44:47,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:44:47,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1276082680, now seen corresponding path program 1 times [2020-10-28 17:44:47,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:44:47,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454761832] [2020-10-28 17:44:47,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:44:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:47,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:47,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:47,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:52,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:52,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-28 17:44:52,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:44:52,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-28 17:44:52,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:52,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:52,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:44:52,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-28 17:44:52,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 17:44:52,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:52,922 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:44:52,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:44:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:52,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:52,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:52,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:44:52,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:52,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:44:52,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:52,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:52,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:52,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:52,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:52,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:44:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:52,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:52,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:52,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:44:52,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:52,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 17:44:52,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:52,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:44:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:44:52,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:53,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:44:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:53,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:53,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:53,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:44:53,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:53,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:44:53,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:53,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:53,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:44:53,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:53,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:44:53,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:53,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:44:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:53,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:53,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:53,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:53,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:53,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:44:53,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:53,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:53,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:44:53,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:53,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:44:53,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:53,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:44:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:53,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:53,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:53,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:53,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:53,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:44:53,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:53,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:53,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:44:53,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:53,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:44:53,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:53,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:44:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:53,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:53,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:53,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:53,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:53,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:44:53,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:53,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:53,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:44:53,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:53,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:44:53,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:53,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:44:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:53,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:53,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:53,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:53,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:53,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:44:53,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:53,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:44:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:44:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:44:53,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:44:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:53,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:53,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:53,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:53,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:53,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:44:53,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:53,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:53,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:44:53,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:44:53,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:44:53,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:44:53,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:44:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:53,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:53,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:53,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:44:53,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:53,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:44:53,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:53,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:44:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:53,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:53,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:44:53,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454761832] [2020-10-28 17:44:53,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:44:53,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 17:44:53,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031632835] [2020-10-28 17:44:53,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:44:53,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:44:53,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:44:53,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:44:53,371 INFO L87 Difference]: Start difference. First operand 127 states and 158 transitions. Second operand 11 states. [2020-10-28 17:44:53,671 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-28 17:44:55,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:44:55,789 INFO L93 Difference]: Finished difference Result 279 states and 370 transitions. [2020-10-28 17:44:55,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:44:55,790 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-10-28 17:44:55,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:44:55,799 INFO L225 Difference]: With dead ends: 279 [2020-10-28 17:44:55,799 INFO L226 Difference]: Without dead ends: 201 [2020-10-28 17:44:55,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:44:55,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-10-28 17:44:55,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 196. [2020-10-28 17:44:55,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-10-28 17:44:55,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 255 transitions. [2020-10-28 17:44:55,856 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 255 transitions. Word has length 98 [2020-10-28 17:44:55,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:44:55,858 INFO L481 AbstractCegarLoop]: Abstraction has 196 states and 255 transitions. [2020-10-28 17:44:55,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:44:55,858 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 255 transitions. [2020-10-28 17:44:55,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-28 17:44:55,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:44:55,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:44:55,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:44:55,867 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:44:55,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:44:55,868 INFO L82 PathProgramCache]: Analyzing trace with hash 840699730, now seen corresponding path program 1 times [2020-10-28 17:44:55,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:44:55,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258747019] [2020-10-28 17:44:55,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:44:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:55,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:55,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:57,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:57,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-28 17:44:57,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:44:57,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2048 [2020-10-28 17:44:57,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:57,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:44:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-28 17:44:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-28 17:44:57,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:58,234 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:44:58,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:44:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:58,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:58,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:58,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:44:58,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:58,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:44:58,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:58,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:58,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:58,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:58,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:58,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:58,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:44:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:58,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:58,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:58,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:44:58,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:58,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:44:58,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:58,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:58,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:44:58,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:58,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:44:58,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:58,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:44:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:58,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:58,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:58,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:44:58,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:58,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:44:58,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:58,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:58,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:44:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:44:58,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:58,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:44:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:58,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:58,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:58,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:58,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:58,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:44:58,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:58,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:58,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:44:58,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:58,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:44:58,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:58,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:44:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:58,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:58,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:58,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:58,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:58,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:44:58,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:58,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:44:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:44:58,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:58,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:44:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:58,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:58,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:58,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:58,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:58,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:44:58,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:58,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:58,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:44:58,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:44:58,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:44:58,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:58,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:44:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:58,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:58,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:58,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:58,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:58,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:44:58,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:58,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:44:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:44:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:44:58,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:58,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:44:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:58,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:58,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:58,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:44:58,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:58,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:44:58,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:58,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:44:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:58,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:58,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:44:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:44:58,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:44:58,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:44:58,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:44:58,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:44:58,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:44:58,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:44:58,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:44:58,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:44:58,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:44:58,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:44:58,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:44:58,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:44:58,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258747019] [2020-10-28 17:44:58,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:44:58,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 17:44:58,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424344022] [2020-10-28 17:44:58,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:44:58,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:44:58,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:44:58,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:44:58,589 INFO L87 Difference]: Start difference. First operand 196 states and 255 transitions. Second operand 11 states. [2020-10-28 17:44:58,843 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-28 17:45:01,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:45:01,203 INFO L93 Difference]: Finished difference Result 482 states and 655 transitions. [2020-10-28 17:45:01,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:45:01,204 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-10-28 17:45:01,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:45:01,210 INFO L225 Difference]: With dead ends: 482 [2020-10-28 17:45:01,210 INFO L226 Difference]: Without dead ends: 335 [2020-10-28 17:45:01,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:45:01,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-10-28 17:45:01,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 328. [2020-10-28 17:45:01,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-10-28 17:45:01,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 439 transitions. [2020-10-28 17:45:01,281 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 439 transitions. Word has length 98 [2020-10-28 17:45:01,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:45:01,283 INFO L481 AbstractCegarLoop]: Abstraction has 328 states and 439 transitions. [2020-10-28 17:45:01,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:45:01,283 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 439 transitions. [2020-10-28 17:45:01,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-28 17:45:01,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:45:01,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:45:01,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:45:01,286 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:45:01,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:45:01,287 INFO L82 PathProgramCache]: Analyzing trace with hash 95117000, now seen corresponding path program 1 times [2020-10-28 17:45:01,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:45:01,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231000750] [2020-10-28 17:45:01,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:45:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:01,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:02,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:02,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-28 17:45:02,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:02,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-10-28 17:45:02,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:02,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:45:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 17:45:02,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:45:02,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:02,623 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:45:02,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:45:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:02,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:02,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:02,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:45:02,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:02,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:45:02,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:02,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:02,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:02,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:02,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:02,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:45:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:02,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:02,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:02,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:45:02,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:02,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 17:45:02,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:02,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:45:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:02,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:45:02,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:02,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:45:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:02,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:02,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:02,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:45:02,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:02,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:45:02,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:02,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:02,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:02,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:02,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:45:02,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:02,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:45:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:02,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:02,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:02,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:02,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:02,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:45:02,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:02,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:02,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:02,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:02,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:45:02,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:02,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:45:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:02,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:02,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:02,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:02,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:45:02,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:02,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:02,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:02,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:02,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:45:02,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:02,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:45:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:02,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:02,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:02,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:02,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:02,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:45:02,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:02,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:45:02,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:03,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:45:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:03,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:03,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:03,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:03,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:45:03,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:03,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:45:03,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:03,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:45:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:03,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:03,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:03,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:03,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:03,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 17:45:03,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:03,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:45:03,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:03,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:45:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:03,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:03,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:03,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:45:03,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:03,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:45:03,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:03,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:03,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:03,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:45:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:45:03,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:03,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:45:03,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231000750] [2020-10-28 17:45:03,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:45:03,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-28 17:45:03,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649099942] [2020-10-28 17:45:03,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 17:45:03,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:45:03,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 17:45:03,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2020-10-28 17:45:03,237 INFO L87 Difference]: Start difference. First operand 328 states and 439 transitions. Second operand 19 states. [2020-10-28 17:45:03,565 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-28 17:45:03,847 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-28 17:45:04,104 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-28 17:45:04,373 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-28 17:45:04,648 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-28 17:45:07,987 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-28 17:45:08,228 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-28 17:45:08,508 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-28 17:45:14,261 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-28 17:45:14,506 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-28 17:45:18,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:45:18,674 INFO L93 Difference]: Finished difference Result 3529 states and 4953 transitions. [2020-10-28 17:45:18,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-28 17:45:18,676 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 98 [2020-10-28 17:45:18,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:45:18,715 INFO L225 Difference]: With dead ends: 3529 [2020-10-28 17:45:18,715 INFO L226 Difference]: Without dead ends: 3250 [2020-10-28 17:45:18,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4064 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=2092, Invalid=9464, Unknown=0, NotChecked=0, Total=11556 [2020-10-28 17:45:18,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-10-28 17:45:19,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 3176. [2020-10-28 17:45:19,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3176 states. [2020-10-28 17:45:19,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3176 states to 3176 states and 4443 transitions. [2020-10-28 17:45:19,078 INFO L78 Accepts]: Start accepts. Automaton has 3176 states and 4443 transitions. Word has length 98 [2020-10-28 17:45:19,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:45:19,078 INFO L481 AbstractCegarLoop]: Abstraction has 3176 states and 4443 transitions. [2020-10-28 17:45:19,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-28 17:45:19,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3176 states and 4443 transitions. [2020-10-28 17:45:19,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-28 17:45:19,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:45:19,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:45:19,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:45:19,081 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:45:19,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:45:19,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1702813768, now seen corresponding path program 1 times [2020-10-28 17:45:19,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:45:19,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378985115] [2020-10-28 17:45:19,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:45:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:19,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:19,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:19,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:20,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:20,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 17:45:20,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:45:20,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 869 [2020-10-28 17:45:20,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:20,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:20,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:20,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-28 17:45:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 17:45:20,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:20,250 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:45:20,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:45:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:20,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:20,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:20,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:45:20,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:20,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:45:20,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:20,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:20,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:20,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:20,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:20,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:20,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:45:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:20,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:20,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:20,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:45:20,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:20,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:45:20,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:20,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:20,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:20,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:20,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:20,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:20,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:45:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:20,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:20,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:20,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:45:20,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:20,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:45:20,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:20,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:20,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:20,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:45:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:20,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:20,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:20,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:20,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:20,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:45:20,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:20,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:20,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:20,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:20,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:20,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:20,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:45:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:20,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:20,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:20,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:20,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:20,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:45:20,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:20,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:20,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:20,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:20,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:20,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:20,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:45:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:20,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:20,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:20,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:20,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:20,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:45:20,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:20,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:20,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:20,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:20,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:20,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:20,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:45:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:20,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:20,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:20,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:20,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:20,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:45:20,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:20,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:20,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:20,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:20,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:20,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:20,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:45:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:20,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:20,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:20,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:20,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:20,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:45:20,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:20,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:20,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:20,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:20,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:20,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:20,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:45:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:20,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:20,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:20,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:45:20,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:20,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:45:20,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:20,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:20,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:45:20,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 17:45:20,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:20,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:45:20,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378985115] [2020-10-28 17:45:20,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:45:20,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 17:45:20,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392477973] [2020-10-28 17:45:20,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:45:20,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:45:20,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:45:20,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:45:20,480 INFO L87 Difference]: Start difference. First operand 3176 states and 4443 transitions. Second operand 9 states. [2020-10-28 17:45:21,728 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-28 17:45:23,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:45:23,262 INFO L93 Difference]: Finished difference Result 9222 states and 12971 transitions. [2020-10-28 17:45:23,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 17:45:23,263 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 100 [2020-10-28 17:45:23,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:45:23,302 INFO L225 Difference]: With dead ends: 9222 [2020-10-28 17:45:23,302 INFO L226 Difference]: Without dead ends: 6095 [2020-10-28 17:45:23,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-10-28 17:45:23,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6095 states. [2020-10-28 17:45:23,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6095 to 5960. [2020-10-28 17:45:23,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5960 states. [2020-10-28 17:45:23,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5960 states to 5960 states and 8299 transitions. [2020-10-28 17:45:23,934 INFO L78 Accepts]: Start accepts. Automaton has 5960 states and 8299 transitions. Word has length 100 [2020-10-28 17:45:23,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:45:23,936 INFO L481 AbstractCegarLoop]: Abstraction has 5960 states and 8299 transitions. [2020-10-28 17:45:23,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:45:23,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5960 states and 8299 transitions. [2020-10-28 17:45:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-28 17:45:23,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:45:23,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:45:23,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:45:23,939 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:45:23,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:45:23,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1328083056, now seen corresponding path program 1 times [2020-10-28 17:45:23,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:45:23,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082481099] [2020-10-28 17:45:23,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:45:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:24,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:25,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:25,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 17:45:25,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:25,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1126 [2020-10-28 17:45:25,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:25,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:45:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 17:45:25,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 17:45:25,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:25,390 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:45:25,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:45:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:25,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:25,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:25,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:45:25,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:25,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:45:25,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:25,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:25,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:25,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:25,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:25,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:25,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:45:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:25,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:25,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:25,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:45:25,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:25,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 17:45:25,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:25,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:25,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:45:25,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:45:25,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:25,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:45:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:25,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:25,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:25,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:45:25,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:25,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:45:25,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:25,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:25,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:45:25,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:25,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:45:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:25,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:25,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:25,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:25,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:25,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 17:45:25,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:25,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:25,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:25,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:25,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:45:25,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:25,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:45:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:25,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:25,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:25,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:25,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:25,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 17:45:25,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:25,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:45:25,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:25,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:45:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:25,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:25,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:25,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:25,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:25,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 17:45:25,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:25,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:25,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:45:25,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:25,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:45:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:25,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:25,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:25,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:25,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:25,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:45:25,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:25,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:25,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:25,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:25,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:45:25,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:25,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:45:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:25,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:25,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:25,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:25,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:25,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 17:45:25,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:25,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:25,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:25,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:45:25,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:25,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:45:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:25,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:26,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:26,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:45:26,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:26,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 17:45:26,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:26,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:45:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:45:26,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:45:26,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082481099] [2020-10-28 17:45:26,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:45:26,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-28 17:45:26,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896754089] [2020-10-28 17:45:26,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 17:45:26,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:45:26,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 17:45:26,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2020-10-28 17:45:26,091 INFO L87 Difference]: Start difference. First operand 5960 states and 8299 transitions. Second operand 19 states. [2020-10-28 17:45:26,485 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-28 17:45:26,754 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-28 17:45:27,027 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-28 17:45:27,312 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-28 17:45:27,596 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-28 17:45:28,328 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-28 17:45:28,651 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-28 17:45:29,321 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-28 17:45:29,580 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-28 17:45:30,788 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-28 17:45:30,971 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-28 17:45:31,320 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-28 17:45:31,891 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-28 17:45:36,673 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-28 17:45:38,091 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-28 17:45:38,432 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-28 17:45:38,871 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-28 17:45:39,722 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-28 17:45:40,931 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-28 17:45:42,124 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-28 17:45:42,954 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-28 17:45:43,345 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-28 17:45:44,451 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-28 17:45:45,054 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-28 17:45:45,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:45:45,716 INFO L93 Difference]: Finished difference Result 15644 states and 22069 transitions. [2020-10-28 17:45:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2020-10-28 17:45:45,717 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 100 [2020-10-28 17:45:45,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:45:45,845 INFO L225 Difference]: With dead ends: 15644 [2020-10-28 17:45:45,845 INFO L226 Difference]: Without dead ends: 9733 [2020-10-28 17:45:45,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4795 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=2337, Invalid=11003, Unknown=0, NotChecked=0, Total=13340 [2020-10-28 17:45:45,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9733 states. [2020-10-28 17:45:46,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9733 to 9008. [2020-10-28 17:45:46,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9008 states. [2020-10-28 17:45:46,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9008 states to 9008 states and 12683 transitions. [2020-10-28 17:45:46,794 INFO L78 Accepts]: Start accepts. Automaton has 9008 states and 12683 transitions. Word has length 100 [2020-10-28 17:45:46,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:45:46,795 INFO L481 AbstractCegarLoop]: Abstraction has 9008 states and 12683 transitions. [2020-10-28 17:45:46,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-28 17:45:46,795 INFO L276 IsEmpty]: Start isEmpty. Operand 9008 states and 12683 transitions. [2020-10-28 17:45:46,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-28 17:45:46,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:45:46,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:45:46,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:45:46,798 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:45:46,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:45:46,798 INFO L82 PathProgramCache]: Analyzing trace with hash -2014908012, now seen corresponding path program 1 times [2020-10-28 17:45:46,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:45:46,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308948514] [2020-10-28 17:45:46,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:45:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:46,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:46,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:46,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:48,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:51,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:51,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 17:45:51,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:45:51,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 17:45:51,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:51,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 17:45:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:45:51,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:52,093 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:45:52,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:45:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:52,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:52,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:52,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:45:52,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:52,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:45:52,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:52,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:52,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:52,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:52,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:52,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:52,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:45:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:52,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:52,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:52,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:45:52,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:52,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:45:52,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:52,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:45:52,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:52,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:45:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:52,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:52,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:52,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:45:52,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:52,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:45:52,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:52,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:52,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:52,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:52,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:45:52,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:52,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:45:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:52,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:52,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:52,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:52,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:52,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:45:52,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:52,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:52,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:52,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:52,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:45:52,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:52,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:45:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:52,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:52,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:52,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:52,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:52,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:45:52,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:52,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:45:52,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:52,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:45:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:52,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:52,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:52,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:45:52,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:52,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:45:52,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:52,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:52,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:52,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:52,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:45:52,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:52,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:45:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:52,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:52,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:52,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:52,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:52,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:45:52,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:52,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:52,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:52,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:52,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:52,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:45:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:52,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:52,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:52,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:52,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:52,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:45:52,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:52,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:52,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:52,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:52,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:52,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-28 17:45:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:52,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:52,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:52,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:45:52,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:52,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:45:52,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:52,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:45:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:52,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:52,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:45:52,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308948514] [2020-10-28 17:45:52,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:45:52,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 17:45:52,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813337387] [2020-10-28 17:45:52,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:45:52,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:45:52,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:45:52,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:45:52,466 INFO L87 Difference]: Start difference. First operand 9008 states and 12683 transitions. Second operand 11 states. [2020-10-28 17:45:52,747 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-28 17:45:56,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:45:56,524 INFO L93 Difference]: Finished difference Result 26126 states and 36919 transitions. [2020-10-28 17:45:56,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:45:56,525 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-28 17:45:56,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:45:56,625 INFO L225 Difference]: With dead ends: 26126 [2020-10-28 17:45:56,625 INFO L226 Difference]: Without dead ends: 17167 [2020-10-28 17:45:56,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:45:56,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17167 states. [2020-10-28 17:45:58,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17167 to 17028. [2020-10-28 17:45:58,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17028 states. [2020-10-28 17:45:58,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17028 states to 17028 states and 23739 transitions. [2020-10-28 17:45:58,479 INFO L78 Accepts]: Start accepts. Automaton has 17028 states and 23739 transitions. Word has length 100 [2020-10-28 17:45:58,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:45:58,479 INFO L481 AbstractCegarLoop]: Abstraction has 17028 states and 23739 transitions. [2020-10-28 17:45:58,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:45:58,479 INFO L276 IsEmpty]: Start isEmpty. Operand 17028 states and 23739 transitions. [2020-10-28 17:45:58,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-28 17:45:58,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:45:58,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:45:58,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:45:58,482 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:45:58,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:45:58,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1025468836, now seen corresponding path program 1 times [2020-10-28 17:45:58,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:45:58,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829991527] [2020-10-28 17:45:58,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:45:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:58,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:58,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:59,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:59,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:03,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:03,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 17:46:03,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:46:03,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 17:46:03,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:03,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-28 17:46:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 17:46:03,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:03,774 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:46:03,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:46:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:03,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:03,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:03,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:46:03,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:03,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:46:03,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:03,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:03,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:03,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:03,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:03,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:03,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:46:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:03,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:03,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:03,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:46:03,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:03,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:46:03,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:03,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:03,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:03,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:03,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:03,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:03,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:46:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:03,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:03,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:03,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:03,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:03,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:46:03,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:03,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:03,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:03,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:03,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:46:03,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:03,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:46:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:03,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:03,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:03,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:03,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:03,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:46:03,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:03,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:03,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:46:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:03,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:03,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:03,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:46:03,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:03,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:46:03,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:03,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:03,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:03,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:03,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:46:03,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:03,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:46:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:03,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:03,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:03,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:03,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:03,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:03,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:03,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:03,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:03,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:03,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:03,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:04,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:46:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:04,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:04,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:04,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:04,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:04,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:04,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:04,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:04,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:04,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:04,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:04,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:46:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:04,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:04,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:04,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:04,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:04,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:46:04,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:04,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:04,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:04,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:04,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:04,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:04,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-28 17:46:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:04,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:04,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:04,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:46:04,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:04,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:46:04,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:04,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:04,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:04,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:46:04,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:04,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:04,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:46:04,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829991527] [2020-10-28 17:46:04,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:46:04,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 17:46:04,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181741507] [2020-10-28 17:46:04,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:46:04,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:46:04,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:46:04,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:46:04,085 INFO L87 Difference]: Start difference. First operand 17028 states and 23739 transitions. Second operand 11 states. [2020-10-28 17:46:04,337 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-28 17:46:08,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:46:08,267 INFO L93 Difference]: Finished difference Result 49434 states and 69087 transitions. [2020-10-28 17:46:08,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:46:08,268 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-28 17:46:08,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:46:08,427 INFO L225 Difference]: With dead ends: 49434 [2020-10-28 17:46:08,428 INFO L226 Difference]: Without dead ends: 32455 [2020-10-28 17:46:08,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:46:08,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32455 states. [2020-10-28 17:46:11,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32455 to 32180. [2020-10-28 17:46:11,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32180 states. [2020-10-28 17:46:11,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32180 states to 32180 states and 44307 transitions. [2020-10-28 17:46:11,844 INFO L78 Accepts]: Start accepts. Automaton has 32180 states and 44307 transitions. Word has length 100 [2020-10-28 17:46:11,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:46:11,844 INFO L481 AbstractCegarLoop]: Abstraction has 32180 states and 44307 transitions. [2020-10-28 17:46:11,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:46:11,844 INFO L276 IsEmpty]: Start isEmpty. Operand 32180 states and 44307 transitions. [2020-10-28 17:46:11,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-28 17:46:11,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:46:11,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:46:11,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 17:46:11,846 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:46:11,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:46:11,847 INFO L82 PathProgramCache]: Analyzing trace with hash 937624243, now seen corresponding path program 1 times [2020-10-28 17:46:11,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:46:11,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516167958] [2020-10-28 17:46:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:46:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:11,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:12,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:12,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:12,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 17:46:12,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:46:12,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-10-28 17:46:12,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:12,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:12,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:12,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 17:46:12,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-28 17:46:12,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:12,794 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:46:12,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:46:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:12,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:12,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:12,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:46:12,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:12,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:46:12,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:12,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:12,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:12,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:12,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:12,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:12,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:46:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:12,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:12,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:12,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:46:12,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:12,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:46:12,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:12,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:12,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 17:46:12,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:12,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:46:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:12,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:12,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:12,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:12,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:12,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:46:12,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:12,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:46:12,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:12,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:46:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:12,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:12,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:12,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:12,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:12,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 17:46:12,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:12,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:12,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:12,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:12,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:12,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:12,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:46:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:12,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:12,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:12,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:12,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:12,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:46:12,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:12,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:12,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:12,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:12,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:12,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:13,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:46:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:13,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:13,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:13,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:13,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:13,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:46:13,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:13,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:13,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:13,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:13,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:13,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:13,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:46:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:13,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:13,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:13,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:13,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:13,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:46:13,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:13,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:13,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:13,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:13,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:13,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:13,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:46:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:13,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:13,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:13,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:13,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:13,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:46:13,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:13,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:13,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:13,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:13,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:13,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:13,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:46:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:13,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:13,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:13,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:13,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:46:13,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:46:13,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:46:13,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:13,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:13,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:13,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:46:13,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:46:13,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:13,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:46:13,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516167958] [2020-10-28 17:46:13,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:46:13,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 17:46:13,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30164231] [2020-10-28 17:46:13,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:46:13,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:46:13,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:46:13,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:46:13,203 INFO L87 Difference]: Start difference. First operand 32180 states and 44307 transitions. Second operand 11 states. [2020-10-28 17:46:13,462 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-28 17:46:15,025 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-28 17:46:19,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:46:19,258 INFO L93 Difference]: Finished difference Result 77193 states and 106641 transitions. [2020-10-28 17:46:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-28 17:46:19,259 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-28 17:46:19,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:46:19,475 INFO L225 Difference]: With dead ends: 77193 [2020-10-28 17:46:19,475 INFO L226 Difference]: Without dead ends: 45062 [2020-10-28 17:46:19,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2020-10-28 17:46:19,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45062 states. [2020-10-28 17:46:23,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45062 to 44112. [2020-10-28 17:46:23,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44112 states. [2020-10-28 17:46:23,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44112 states to 44112 states and 60179 transitions. [2020-10-28 17:46:23,295 INFO L78 Accepts]: Start accepts. Automaton has 44112 states and 60179 transitions. Word has length 101 [2020-10-28 17:46:23,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:46:23,296 INFO L481 AbstractCegarLoop]: Abstraction has 44112 states and 60179 transitions. [2020-10-28 17:46:23,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:46:23,296 INFO L276 IsEmpty]: Start isEmpty. Operand 44112 states and 60179 transitions. [2020-10-28 17:46:23,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-28 17:46:23,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:46:23,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:46:23,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 17:46:23,298 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:46:23,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:46:23,298 INFO L82 PathProgramCache]: Analyzing trace with hash 468190482, now seen corresponding path program 1 times [2020-10-28 17:46:23,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:46:23,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718649708] [2020-10-28 17:46:23,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:46:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:23,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:23,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:23,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 17:46:23,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:23,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 664 [2020-10-28 17:46:23,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:23,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:46:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-28 17:46:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:46:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:24,274 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:46:24,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:46:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:24,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:24,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:24,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:46:24,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:24,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:46:24,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:24,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:24,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:24,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:24,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:24,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:46:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:24,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:24,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:24,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:46:24,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:24,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:46:24,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:24,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:24,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:24,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:24,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:24,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:24,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:46:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:24,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:24,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:24,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:24,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:24,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:46:24,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:24,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:24,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:24,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:24,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:24,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:24,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:46:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:24,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:24,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:24,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:24,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:24,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:46:24,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:24,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:24,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:24,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:24,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:24,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:24,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:46:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:24,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:24,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:24,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:24,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:24,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:24,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:24,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:24,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:24,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:24,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:24,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:24,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:46:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:24,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:24,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:24,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:24,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:24,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:46:24,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:24,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:24,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:24,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:24,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:24,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:24,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:46:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:24,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:24,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:24,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:24,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:24,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:24,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:24,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:24,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:24,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:24,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:24,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:24,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:46:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:24,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:24,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:24,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:24,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:24,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:46:24,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:24,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:24,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:24,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:24,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:24,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:24,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:46:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:24,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:24,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:24,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:46:24,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:24,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:46:24,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:24,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:24,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:24,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:46:24,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:24,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:46:24,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718649708] [2020-10-28 17:46:24,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:46:24,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-28 17:46:24,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294577601] [2020-10-28 17:46:24,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 17:46:24,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:46:24,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 17:46:24,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-28 17:46:24,567 INFO L87 Difference]: Start difference. First operand 44112 states and 60179 transitions. Second operand 14 states. [2020-10-28 17:46:26,040 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-28 17:46:26,303 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-28 17:46:26,590 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-28 17:46:26,868 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-28 17:46:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:46:30,277 INFO L93 Difference]: Finished difference Result 47987 states and 68176 transitions. [2020-10-28 17:46:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 17:46:30,278 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 101 [2020-10-28 17:46:30,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:46:30,502 INFO L225 Difference]: With dead ends: 47987 [2020-10-28 17:46:30,502 INFO L226 Difference]: Without dead ends: 47984 [2020-10-28 17:46:30,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-10-28 17:46:30,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47984 states. [2020-10-28 17:46:34,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47984 to 44832. [2020-10-28 17:46:34,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44832 states. [2020-10-28 17:46:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44832 states to 44832 states and 60835 transitions. [2020-10-28 17:46:34,263 INFO L78 Accepts]: Start accepts. Automaton has 44832 states and 60835 transitions. Word has length 101 [2020-10-28 17:46:34,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:46:34,264 INFO L481 AbstractCegarLoop]: Abstraction has 44832 states and 60835 transitions. [2020-10-28 17:46:34,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 17:46:34,264 INFO L276 IsEmpty]: Start isEmpty. Operand 44832 states and 60835 transitions. [2020-10-28 17:46:34,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-28 17:46:34,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:46:34,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:46:34,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 17:46:34,266 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:46:34,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:46:34,266 INFO L82 PathProgramCache]: Analyzing trace with hash -581620071, now seen corresponding path program 1 times [2020-10-28 17:46:34,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:46:34,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237037084] [2020-10-28 17:46:34,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:46:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:34,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:34,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:34,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:34,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:39,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:39,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 17:46:39,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:46:39,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 17:46:39,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:39,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:39,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-28 17:46:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:46:39,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:39,526 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:46:39,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:46:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:39,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:39,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:39,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:46:39,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:39,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:46:39,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:39,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:39,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:39,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:39,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:39,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:39,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:46:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:39,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:39,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:39,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:46:39,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:39,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:46:39,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:39,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:39,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:46:39,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:39,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:46:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:39,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:39,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:39,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:39,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:39,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:46:39,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:39,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:46:39,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:39,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:46:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:39,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:39,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:39,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:46:39,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:39,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:46:39,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:39,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:46:39,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:39,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 17:46:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:39,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:39,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:39,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:39,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:39,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:46:39,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:39,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:39,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:39,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:39,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:46:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:39,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:39,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:39,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:39,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:39,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:39,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:39,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:39,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:39,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 17:46:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:39,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:39,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:39,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:39,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:39,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:39,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:39,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:39,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:39,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 17:46:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:39,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:39,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:39,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:39,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:39,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:39,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:39,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:39,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:39,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:39,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:39,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:39,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 17:46:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:39,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:39,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:39,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:46:39,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:39,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:46:39,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:39,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:39,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:39,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:46:39,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:39,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:39,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:46:39,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237037084] [2020-10-28 17:46:39,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:46:39,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 17:46:39,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702533709] [2020-10-28 17:46:39,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:46:39,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:46:39,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:46:39,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:46:39,811 INFO L87 Difference]: Start difference. First operand 44832 states and 60835 transitions. Second operand 11 states. [2020-10-28 17:46:40,065 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-28 17:46:41,154 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-28 17:46:46,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:46:46,039 INFO L93 Difference]: Finished difference Result 95063 states and 129480 transitions. [2020-10-28 17:46:46,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:46:46,039 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-28 17:46:46,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:46:46,412 INFO L225 Difference]: With dead ends: 95063 [2020-10-28 17:46:46,413 INFO L226 Difference]: Without dead ends: 61731 [2020-10-28 17:46:46,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-28 17:46:46,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61731 states. [2020-10-28 17:46:50,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61731 to 61456. [2020-10-28 17:46:50,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61456 states. [2020-10-28 17:46:51,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61456 states to 61456 states and 82448 transitions. [2020-10-28 17:46:51,124 INFO L78 Accepts]: Start accepts. Automaton has 61456 states and 82448 transitions. Word has length 102 [2020-10-28 17:46:51,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:46:51,125 INFO L481 AbstractCegarLoop]: Abstraction has 61456 states and 82448 transitions. [2020-10-28 17:46:51,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:46:51,125 INFO L276 IsEmpty]: Start isEmpty. Operand 61456 states and 82448 transitions. [2020-10-28 17:46:51,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-28 17:46:51,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:46:51,140 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:46:51,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 17:46:51,141 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:46:51,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:46:51,141 INFO L82 PathProgramCache]: Analyzing trace with hash -888368257, now seen corresponding path program 1 times [2020-10-28 17:46:51,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:46:51,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495115363] [2020-10-28 17:46:51,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:46:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:51,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:51,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:51,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:52,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:52,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:52,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:53,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-28 17:46:56,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 17:46:56,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-28 17:46:56,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:56,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-28 17:46:56,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 17:46:56,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,439 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:46:56,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:46:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:46:56,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:46:56,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:56,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:56,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:56,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:46:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:46:56,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:46:56,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:56,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:56,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:56,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:46:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:56,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:46:56,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:56,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:46:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:56,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:46:56,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:56,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:56,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:46:56,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:46:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:56,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:46:56,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:56,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:56,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:56,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:46:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:56,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:46:56,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:56,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:56,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:56,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:46:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:56,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:46:56,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:56,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:56,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:56,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:46:56,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:46:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:56,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:46:56,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:56,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:56,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:56,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:46:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:46:56,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:46:56,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:46:56,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-28 17:46:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:56,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:46:56,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:46:56,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:46:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:56,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:46:56,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:56,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:56,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:46:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:56,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:46:56,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:56,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:56,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:56,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-28 17:46:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:56,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:46:56,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:56,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 17:46:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:56,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:46:56,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:56,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-28 17:46:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:46:56,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:46:56,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:56,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 17:46:56,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:56,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-28 17:46:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:56,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:56,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:56,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:46:56,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:56,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:46:56,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:56,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:56,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:56,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:46:56,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:56,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:56,864 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-28 17:46:56,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495115363] [2020-10-28 17:46:56,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:46:56,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-28 17:46:56,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030634768] [2020-10-28 17:46:56,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:46:56,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:46:56,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:46:56,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:46:56,866 INFO L87 Difference]: Start difference. First operand 61456 states and 82448 transitions. Second operand 11 states. [2020-10-28 17:46:57,179 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-28 17:46:57,765 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-28 17:47:03,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:47:03,012 INFO L93 Difference]: Finished difference Result 108463 states and 145401 transitions. [2020-10-28 17:47:03,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:47:03,013 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 152 [2020-10-28 17:47:03,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:47:03,164 INFO L225 Difference]: With dead ends: 108463 [2020-10-28 17:47:03,164 INFO L226 Difference]: Without dead ends: 47060 [2020-10-28 17:47:03,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-28 17:47:03,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47060 states. [2020-10-28 17:47:07,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47060 to 44865. [2020-10-28 17:47:07,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44865 states. [2020-10-28 17:47:07,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44865 states to 44865 states and 59147 transitions. [2020-10-28 17:47:07,466 INFO L78 Accepts]: Start accepts. Automaton has 44865 states and 59147 transitions. Word has length 152 [2020-10-28 17:47:07,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:47:07,467 INFO L481 AbstractCegarLoop]: Abstraction has 44865 states and 59147 transitions. [2020-10-28 17:47:07,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:47:07,467 INFO L276 IsEmpty]: Start isEmpty. Operand 44865 states and 59147 transitions. [2020-10-28 17:47:07,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-28 17:47:07,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:47:07,477 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:47:07,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 17:47:07,478 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:47:07,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:47:07,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1789808262, now seen corresponding path program 1 times [2020-10-28 17:47:07,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:47:07,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950721051] [2020-10-28 17:47:07,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:47:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:07,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:07,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:07,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:08,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:08,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:09,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:09,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:10,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:12,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:12,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-28 17:47:12,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 17:47:12,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 17:47:12,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:12,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 17:47:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 17:47:12,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:12,766 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:47:12,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:47:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:12,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:12,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:12,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:47:12,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:12,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:47:12,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:12,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:12,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:12,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:12,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:12,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:12,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:47:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:12,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:12,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:12,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:47:12,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:12,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:12,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:12,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:12,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:12,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:12,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:12,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:12,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:47:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:12,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:12,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:12,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:12,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:12,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:47:12,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:12,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:12,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:12,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:47:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:12,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:12,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:12,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:12,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:12,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:12,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:12,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:12,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:12,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:47:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:12,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:12,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:12,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:12,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:12,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:12,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:12,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:12,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:12,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:12,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:12,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:12,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:47:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:12,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:12,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:12,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:12,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:12,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:12,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:12,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:12,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:12,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:12,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:47:12,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:12,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:47:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:12,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:12,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:12,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:12,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:12,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:12,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:12,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:12,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:12,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:12,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:12,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:12,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:47:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:12,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:12,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:12,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:12,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:12,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:12,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:12,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:12,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:12,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:12,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:12,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:12,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:47:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:12,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:12,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:12,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:47:12,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:12,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:12,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:12,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:12,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:47:12,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:12,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-28 17:47:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:12,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:12,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:12,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:12,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:12,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:12,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:12,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:12,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:12,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:12,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:12,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:12,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:47:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:12,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:12,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:12,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:47:12,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:12,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:12,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:12,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:12,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:12,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:12,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:47:12,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:12,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:47:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:13,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:13,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:13,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:13,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:13,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:13,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:13,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:13,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:13,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:13,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:13,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:13,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 17:47:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:13,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:13,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:13,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:13,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:13,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:47:13,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:13,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:13,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:13,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:13,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:13,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:13,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-28 17:47:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:13,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:13,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:13,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:13,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:13,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:13,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:13,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:13,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:13,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:13,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:13,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:13,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-28 17:47:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:13,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:13,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:13,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:47:13,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:13,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:13,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:13,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:13,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:13,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 17:47:13,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:13,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:13,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 17:47:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:13,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:13,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:13,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:47:13,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:13,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:13,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:13,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:13,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:13,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:47:13,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:13,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:13,133 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-28 17:47:13,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950721051] [2020-10-28 17:47:13,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:47:13,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-28 17:47:13,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726771548] [2020-10-28 17:47:13,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:47:13,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:47:13,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:47:13,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:47:13,135 INFO L87 Difference]: Start difference. First operand 44865 states and 59147 transitions. Second operand 11 states. [2020-10-28 17:47:13,508 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-28 17:47:14,241 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-28 17:47:17,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:47:17,140 INFO L93 Difference]: Finished difference Result 67203 states and 88407 transitions. [2020-10-28 17:47:17,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:47:17,140 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 154 [2020-10-28 17:47:17,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:47:17,213 INFO L225 Difference]: With dead ends: 67203 [2020-10-28 17:47:17,214 INFO L226 Difference]: Without dead ends: 22444 [2020-10-28 17:47:17,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2020-10-28 17:47:17,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22444 states. [2020-10-28 17:47:19,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22444 to 22305. [2020-10-28 17:47:19,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22305 states. [2020-10-28 17:47:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22305 states to 22305 states and 28963 transitions. [2020-10-28 17:47:19,164 INFO L78 Accepts]: Start accepts. Automaton has 22305 states and 28963 transitions. Word has length 154 [2020-10-28 17:47:19,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:47:19,165 INFO L481 AbstractCegarLoop]: Abstraction has 22305 states and 28963 transitions. [2020-10-28 17:47:19,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:47:19,165 INFO L276 IsEmpty]: Start isEmpty. Operand 22305 states and 28963 transitions. [2020-10-28 17:47:19,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-28 17:47:19,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:47:19,171 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:47:19,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 17:47:19,172 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:47:19,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:47:19,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1478516112, now seen corresponding path program 1 times [2020-10-28 17:47:19,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:47:19,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267273960] [2020-10-28 17:47:19,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:47:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:19,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:19,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:19,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:19,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:20,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-28 17:47:24,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:47:24,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-28 17:47:24,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:24,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-28 17:47:24,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 17:47:24,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,466 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:47:24,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:47:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:47:24,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:47:24,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:24,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:24,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:47:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:47:24,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:24,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:24,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:24,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:47:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:24,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:47:24,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:24,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:47:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:24,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:24,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:24,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:24,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:47:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:24,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:24,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:24,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:47:24,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:47:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:24,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:47:24,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:24,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:47:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:24,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:47:24,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:24,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:24,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:47:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:24,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:24,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:24,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:47:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:47:24,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:24,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:24,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:47:24,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-28 17:47:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:24,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:24,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:24,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:24,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:47:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:47:24,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:24,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:47:24,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:47:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:24,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:47:24,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:24,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:24,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:24,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 17:47:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:47:24,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:24,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 17:47:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:47:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:24,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:24,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:24,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:24,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:24,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 17:47:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:24,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:24,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:24,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:24,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:24,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 17:47:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:47:24,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:24,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:24,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:47:24,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:24,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,914 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-28 17:47:24,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267273960] [2020-10-28 17:47:24,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:47:24,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-28 17:47:24,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705717834] [2020-10-28 17:47:24,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:47:24,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:47:24,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:47:24,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:47:24,916 INFO L87 Difference]: Start difference. First operand 22305 states and 28963 transitions. Second operand 11 states. [2020-10-28 17:47:25,248 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-28 17:47:25,867 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-28 17:47:26,615 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-10-28 17:47:28,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:47:28,237 INFO L93 Difference]: Finished difference Result 33419 states and 43307 transitions. [2020-10-28 17:47:28,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:47:28,238 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 154 [2020-10-28 17:47:28,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:47:28,268 INFO L225 Difference]: With dead ends: 33419 [2020-10-28 17:47:28,268 INFO L226 Difference]: Without dead ends: 11220 [2020-10-28 17:47:28,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-28 17:47:28,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11220 states. [2020-10-28 17:47:29,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11220 to 11149. [2020-10-28 17:47:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11149 states. [2020-10-28 17:47:29,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11149 states to 11149 states and 14251 transitions. [2020-10-28 17:47:29,213 INFO L78 Accepts]: Start accepts. Automaton has 11149 states and 14251 transitions. Word has length 154 [2020-10-28 17:47:29,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:47:29,214 INFO L481 AbstractCegarLoop]: Abstraction has 11149 states and 14251 transitions. [2020-10-28 17:47:29,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:47:29,214 INFO L276 IsEmpty]: Start isEmpty. Operand 11149 states and 14251 transitions. [2020-10-28 17:47:29,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-28 17:47:29,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:47:29,218 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:47:29,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 17:47:29,219 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:47:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:47:29,219 INFO L82 PathProgramCache]: Analyzing trace with hash 948043514, now seen corresponding path program 1 times [2020-10-28 17:47:29,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:47:29,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141345123] [2020-10-28 17:47:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:47:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:29,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:29,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:29,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:29,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:29,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-28 17:47:34,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:47:34,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 17:47:34,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 17:47:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 17:47:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-28 17:47:34,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,501 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:47:34,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:47:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:47:34,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:34,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:34,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:47:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:47:34,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:34,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:34,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:34,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:47:34,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:47:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:34,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:47:34,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:34,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:47:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:34,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:34,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:34,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:34,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:34,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:47:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:34,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:34,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:34,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:34,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:34,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:47:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:34,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:47:34,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:34,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:34,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:34,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:47:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:34,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:34,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:34,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:34,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:34,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:47:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:34,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:34,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:34,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:34,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:34,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:47:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:47:34,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:34,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:47:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:47:34,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-28 17:47:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:34,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:34,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:34,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:34,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:47:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:47:34,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:47:34,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:47:34,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:47:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:34,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:34,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:34,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:34,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 17:47:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:47:34,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:34,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:47:34,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:34,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:47:34,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:47:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:34,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:34,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:34,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:34,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:34,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 17:47:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:34,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:34,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:34,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:34,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:34,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 17:47:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:34,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:47:34,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:34,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:34,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:47:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:47:34,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:34,994 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-28 17:47:34,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141345123] [2020-10-28 17:47:34,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:47:34,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-28 17:47:34,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089852818] [2020-10-28 17:47:34,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 17:47:34,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:47:34,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 17:47:34,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-10-28 17:47:34,996 INFO L87 Difference]: Start difference. First operand 11149 states and 14251 transitions. Second operand 19 states. [2020-10-28 17:47:35,486 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2020-10-28 17:47:35,810 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-28 17:47:37,066 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-28 17:47:37,312 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-28 17:47:37,621 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-28 17:47:37,950 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-28 17:47:38,132 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-28 17:47:38,746 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 153 [2020-10-28 17:47:38,913 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-28 17:47:39,106 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-28 17:47:39,342 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-28 17:47:39,894 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-28 17:47:40,110 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-28 17:47:40,862 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-28 17:47:41,143 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-28 17:47:41,368 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-28 17:47:41,626 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-28 17:47:41,937 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-28 17:47:43,342 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-28 17:47:44,397 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-28 17:47:45,496 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-28 17:47:51,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:47:51,319 INFO L93 Difference]: Finished difference Result 39925 states and 52605 transitions. [2020-10-28 17:47:51,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2020-10-28 17:47:51,319 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 154 [2020-10-28 17:47:51,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:47:51,389 INFO L225 Difference]: With dead ends: 39925 [2020-10-28 17:47:51,389 INFO L226 Difference]: Without dead ends: 29624 [2020-10-28 17:47:51,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3095 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1634, Invalid=7678, Unknown=0, NotChecked=0, Total=9312 [2020-10-28 17:47:51,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29624 states. [2020-10-28 17:47:53,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29624 to 28823. [2020-10-28 17:47:53,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28823 states. [2020-10-28 17:47:53,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28823 states to 28823 states and 37191 transitions. [2020-10-28 17:47:53,861 INFO L78 Accepts]: Start accepts. Automaton has 28823 states and 37191 transitions. Word has length 154 [2020-10-28 17:47:53,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:47:53,861 INFO L481 AbstractCegarLoop]: Abstraction has 28823 states and 37191 transitions. [2020-10-28 17:47:53,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-28 17:47:53,861 INFO L276 IsEmpty]: Start isEmpty. Operand 28823 states and 37191 transitions. [2020-10-28 17:47:53,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-28 17:47:53,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:47:53,867 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:47:53,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 17:47:53,867 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:47:53,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:47:53,868 INFO L82 PathProgramCache]: Analyzing trace with hash 618682554, now seen corresponding path program 1 times [2020-10-28 17:47:53,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:47:53,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514913233] [2020-10-28 17:47:53,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:47:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:53,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:53,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:54,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:55,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:56,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:56,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:58,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:58,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-28 17:47:58,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 17:47:58,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 17:47:58,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:58,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:47:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:47:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-28 17:47:58,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,183 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-28 17:47:59,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:47:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:47:59,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:59,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:59,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:59,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:47:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 17:47:59,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:47:59,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:59,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:47:59,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:47:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:59,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:59,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:59,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:59,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 17:47:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:59,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:59,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:59,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:59,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 17:47:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:59,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:59,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:59,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:47:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:59,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:59,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:59,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:59,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:47:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:59,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:47:59,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:47:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:59,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:59,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:47:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:59,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:47:59,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:59,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:47:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:47:59,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:59,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:47:59,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-28 17:47:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:59,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:59,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:59,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:47:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:47:59,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:47:59,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:47:59,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:47:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:59,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:59,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:59,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 17:47:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:59,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:59,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:59,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-28 17:47:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:59,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:59,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:59,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:59,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-28 17:47:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:47:59,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:47:59,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:47:59,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:47:59,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 17:47:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:59,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:59,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:59,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:47:59,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:59,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:47:59,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:59,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:59,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:59,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:47:59,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:59,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 17:47:59,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514913233] [2020-10-28 17:47:59,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:47:59,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-28 17:47:59,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322651886] [2020-10-28 17:47:59,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-28 17:47:59,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:47:59,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-28 17:47:59,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2020-10-28 17:47:59,799 INFO L87 Difference]: Start difference. First operand 28823 states and 37191 transitions. Second operand 20 states. [2020-10-28 17:48:00,384 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 156 [2020-10-28 17:48:00,677 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-28 17:48:01,535 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 158 [2020-10-28 17:48:01,972 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-28 17:48:02,221 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-28 17:48:02,491 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76