/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=DEEPEST --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.6.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:58:50,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:58:50,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:58:50,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:58:50,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:58:50,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:58:50,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:58:50,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:58:50,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:58:50,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:58:50,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:58:50,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:58:50,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:58:50,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:58:50,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:58:50,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:58:50,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:58:50,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:58:50,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:58:50,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:58:50,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:58:50,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:58:50,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:58:50,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:58:50,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:58:50,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:58:50,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:58:50,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:58:50,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:58:50,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:58:50,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:58:50,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:58:50,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:58:50,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:58:50,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:58:50,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:58:50,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:58:50,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:58:50,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:58:50,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:58:50,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:58:50,809 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 [2020-10-27 22:58:50,838 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:58:50,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:58:50,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:58:50,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:58:50,840 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:58:50,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:58:50,841 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:58:50,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:58:50,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:58:50,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:58:50,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:58:50,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:58:50,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:58:50,842 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:58:50,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:58:50,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:58:50,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:58:50,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:58:50,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:58:50,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:58:50,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:58:50,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:58:50,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:58:50,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:58:50,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:58:50,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:58:50,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:58:50,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:58:50,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:58:50,860 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:58:51,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:58:51,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:58:51,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:58:51,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:58:51,318 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:58:51,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c [2020-10-27 22:58:51,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc69aa020/9b1f55f604604e3b9c71e13e8d852eac/FLAG5e624e39c [2020-10-27 22:58:52,070 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:58:52,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c [2020-10-27 22:58:52,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc69aa020/9b1f55f604604e3b9c71e13e8d852eac/FLAG5e624e39c [2020-10-27 22:58:52,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc69aa020/9b1f55f604604e3b9c71e13e8d852eac [2020-10-27 22:58:52,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:58:52,403 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:58:52,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:58:52,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:58:52,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:58:52,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:58:52" (1/1) ... [2020-10-27 22:58:52,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16df5b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:58:52, skipping insertion in model container [2020-10-27 22:58:52,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:58:52" (1/1) ... [2020-10-27 22:58:52,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:58:52,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:58:52,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:58:52,742 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:58:52,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:58:52,873 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:58:52,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:58:52 WrapperNode [2020-10-27 22:58:52,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:58:52,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:58:52,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:58:52,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:58:52,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:58:52" (1/1) ... [2020-10-27 22:58:52,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:58:52" (1/1) ... [2020-10-27 22:58:52,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:58:52" (1/1) ... [2020-10-27 22:58:52,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:58:52" (1/1) ... [2020-10-27 22:58:52,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:58:52" (1/1) ... [2020-10-27 22:58:53,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:58:52" (1/1) ... [2020-10-27 22:58:53,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:58:52" (1/1) ... [2020-10-27 22:58:53,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:58:53,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:58:53,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:58:53,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:58:53,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:58:52" (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 [2020-10-27 22:58:53,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:58:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:58:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:58:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 22:58:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 22:58:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 22:58:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 22:58:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 22:58:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 22:58:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-27 22:58:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 22:58:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 22:58:53,112 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:58:53,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 22:58:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:58:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:58:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:58:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:58:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 22:58:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 22:58:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 22:58:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 22:58:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 22:58:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 22:58:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 22:58:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 22:58:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 22:58:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 22:58:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 22:58:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 22:58:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-27 22:58:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 22:58:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 22:58:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:58:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:58:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:58:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:58:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:58:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:58:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:58:54,211 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:58:54,211 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 22:58:54,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:58:54 BoogieIcfgContainer [2020-10-27 22:58:54,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:58:54,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:58:54,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:58:54,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:58:54,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:58:52" (1/3) ... [2020-10-27 22:58:54,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e108a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:58:54, skipping insertion in model container [2020-10-27 22:58:54,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:58:52" (2/3) ... [2020-10-27 22:58:54,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e108a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:58:54, skipping insertion in model container [2020-10-27 22:58:54,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:58:54" (3/3) ... [2020-10-27 22:58:54,222 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c [2020-10-27 22:58:54,234 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:58:54,240 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:58:54,255 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:58:54,283 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:58:54,284 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:58:54,284 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:58:54,284 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:58:54,284 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:58:54,284 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:58:54,284 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:58:54,285 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:58:54,306 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-10-27 22:58:54,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 22:58:54,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:58:54,318 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] [2020-10-27 22:58:54,318 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:58:54,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:58:54,325 INFO L82 PathProgramCache]: Analyzing trace with hash 822860859, now seen corresponding path program 1 times [2020-10-27 22:58:54,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:58:54,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394992673] [2020-10-27 22:58:54,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:58:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:54,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:55,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:55,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 22:58:55,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:55,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-10-27 22:58:55,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 22:58:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:55,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:58:55,693 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:58:55,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:58:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:55,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:55,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:55,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:58:55,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:55,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 22:58:55,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:55,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:55,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:55,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:55,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:55,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:58:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:55,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:55,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:55,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:58:55,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:55,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:55,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:55,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:55,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 22:58:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:55,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:55,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:55,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:58:55,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:55,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:58:55,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:55,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:55,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:58:55,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:55,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:55,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 22:58:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:55,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:55,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:55,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:55,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:55,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:58:55,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:55,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:55,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:55,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:55,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:55,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 22:58:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:55,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:55,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:55,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:55,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:55,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:58:55,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:55,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:55,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:55,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:55,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:55,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 22:58:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:55,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:55,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:55,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:55,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:55,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:58:55,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:55,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:55,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:55,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:55,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:55,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 22:58:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:55,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:55,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:55,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:55,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:55,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:58:55,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:55,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:55,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:56,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 22:58:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:56,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:56,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:56,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:56,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:56,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:58:56,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:56,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:56,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:56,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:56,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:56,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 22:58:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:56,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:56,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:56,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:56,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:56,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:58:56,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:56,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:56,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:58:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:56,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:56,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:56,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:58:56,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:56,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:58:56,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:56,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:56,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:58:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:56,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:56,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:58:56,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394992673] [2020-10-27 22:58:56,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:58:56,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 22:58:56,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806770328] [2020-10-27 22:58:56,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:58:56,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:58:56,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:58:56,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:58:56,176 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 9 states. [2020-10-27 22:58:56,697 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-27 22:58:57,040 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 22:58:58,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:58:58,000 INFO L93 Difference]: Finished difference Result 248 states and 368 transitions. [2020-10-27 22:58:58,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 22:58:58,003 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-10-27 22:58:58,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:58:58,015 INFO L225 Difference]: With dead ends: 248 [2020-10-27 22:58:58,016 INFO L226 Difference]: Without dead ends: 148 [2020-10-27 22:58:58,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-27 22:58:58,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-27 22:58:58,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2020-10-27 22:58:58,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-27 22:58:58,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 223 transitions. [2020-10-27 22:58:58,101 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 223 transitions. Word has length 75 [2020-10-27 22:58:58,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:58:58,102 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 223 transitions. [2020-10-27 22:58:58,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:58:58,102 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 223 transitions. [2020-10-27 22:58:58,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 22:58:58,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:58:58,106 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] [2020-10-27 22:58:58,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:58:58,107 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:58:58,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:58:58,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1024684793, now seen corresponding path program 1 times [2020-10-27 22:58:58,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:58:58,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380115147] [2020-10-27 22:58:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:58:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:58,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:59,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:59,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 22:58:59,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:59,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 946 [2020-10-27 22:58:59,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:59,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:58:59,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 22:58:59,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:58:59,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:59,389 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:58:59,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:58:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:59,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:59,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:59,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:58:59,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:59,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:58:59,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:59,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:59,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:59,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:59,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:59,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:58:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:59,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:59,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:59,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:58:59,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:59,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:58:59,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:59,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:59,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:59,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:58:59,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:59,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 22:58:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:59,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:59,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:59,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:58:59,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:59,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:59,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:58:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:58:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:59,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 22:58:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:59,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:59,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:59,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:59,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:59,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:58:59,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:59,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:59,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:59,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:59,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:59,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 22:58:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:59,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:59,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:59,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:59,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:59,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:59,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:59,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:59,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:59,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 22:58:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:59,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:59,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:59,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:59,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:59,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:59,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:59,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:59,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 22:58:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:59,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:59,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:59,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:59,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:59,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:59,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:59,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:59,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:59,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 22:58:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:59,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:59,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:59,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:59,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:59,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:59,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:59,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:59,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:59,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:59,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:59,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 22:58:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:59,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:59,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:59,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:59,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:59,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:59,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:59,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:59,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:58:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:59,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:59,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:59,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:58:59,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:59,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:58:59,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:59,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:59,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:58:59,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:59,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:59,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:58:59,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380115147] [2020-10-27 22:58:59,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:58:59,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 22:58:59,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775184801] [2020-10-27 22:58:59,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 22:58:59,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:58:59,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 22:58:59,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-27 22:58:59,787 INFO L87 Difference]: Start difference. First operand 147 states and 223 transitions. Second operand 15 states. [2020-10-27 22:59:00,064 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:59:00,328 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 22:59:00,645 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:59:00,896 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:59:02,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:59:02,744 INFO L93 Difference]: Finished difference Result 243 states and 356 transitions. [2020-10-27 22:59:02,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 22:59:02,745 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 75 [2020-10-27 22:59:02,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:59:02,751 INFO L225 Difference]: With dead ends: 243 [2020-10-27 22:59:02,753 INFO L226 Difference]: Without dead ends: 148 [2020-10-27 22:59:02,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:59:02,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-27 22:59:02,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2020-10-27 22:59:02,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-27 22:59:02,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 183 transitions. [2020-10-27 22:59:02,809 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 183 transitions. Word has length 75 [2020-10-27 22:59:02,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:59:02,810 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 183 transitions. [2020-10-27 22:59:02,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 22:59:02,810 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 183 transitions. [2020-10-27 22:59:02,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-27 22:59:02,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:59:02,815 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:59:02,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:59:02,816 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:59:02,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:59:02,817 INFO L82 PathProgramCache]: Analyzing trace with hash 272098825, now seen corresponding path program 1 times [2020-10-27 22:59:02,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:59:02,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794899354] [2020-10-27 22:59:02,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:59:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:02,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:03,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:03,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:03,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:03,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:07,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:07,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 22:59:07,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:59:07,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 22:59:07,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:07,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:07,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-27 22:59:07,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 22:59:07,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:59:08,187 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:59:08,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:59:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:08,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:08,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:59:08,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:08,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:59:08,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:08,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:08,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:08,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:08,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:59:08,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:59:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:08,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:08,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:59:08,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:08,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 22:59:08,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:08,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:08,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:08,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 22:59:08,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:08,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 22:59:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:08,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:08,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:08,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:08,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:59:08,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:08,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:08,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:08,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:59:08,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:08,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 22:59:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:08,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:08,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:08,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:08,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:59:08,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:08,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:08,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:08,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:08,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:08,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 22:59:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:08,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:08,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:08,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:08,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:59:08,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:08,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:08,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 22:59:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:08,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:08,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:08,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:08,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:59:08,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:08,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:08,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:08,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:08,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:08,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 22:59:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:08,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:08,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:08,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:08,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:59:08,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:08,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:08,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:08,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:08,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:08,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:59:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:08,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:08,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:08,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:08,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 22:59:08,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:08,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:08,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:08,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 22:59:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:08,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:08,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:08,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:08,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:59:08,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:08,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:08,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:08,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:08,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:08,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:59:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:08,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:08,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:59:08,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:08,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:08,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:59:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:08,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:08,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:59:08,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794899354] [2020-10-27 22:59:08,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:59:08,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 22:59:08,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561408729] [2020-10-27 22:59:08,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:59:08,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:59:08,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:59:08,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:59:08,678 INFO L87 Difference]: Start difference. First operand 147 states and 183 transitions. Second operand 12 states. [2020-10-27 22:59:08,935 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:59:11,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:59:11,396 INFO L93 Difference]: Finished difference Result 321 states and 427 transitions. [2020-10-27 22:59:11,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:59:11,397 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2020-10-27 22:59:11,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:59:11,401 INFO L225 Difference]: With dead ends: 321 [2020-10-27 22:59:11,402 INFO L226 Difference]: Without dead ends: 232 [2020-10-27 22:59:11,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2020-10-27 22:59:11,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-27 22:59:11,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 227. [2020-10-27 22:59:11,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-27 22:59:11,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 296 transitions. [2020-10-27 22:59:11,442 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 296 transitions. Word has length 114 [2020-10-27 22:59:11,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:59:11,442 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 296 transitions. [2020-10-27 22:59:11,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:59:11,443 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 296 transitions. [2020-10-27 22:59:11,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-27 22:59:11,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:59:11,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:59:11,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:59:11,447 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:59:11,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:59:11,447 INFO L82 PathProgramCache]: Analyzing trace with hash -473483905, now seen corresponding path program 1 times [2020-10-27 22:59:11,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:59:11,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103846834] [2020-10-27 22:59:11,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:59:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:11,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:11,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:11,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:11,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:14,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:16,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:16,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 22:59:16,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:59:16,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 22:59:16,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:16,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:16,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-27 22:59:16,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 22:59:16,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:16,718 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:59:16,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:59:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:16,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:16,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:16,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:59:16,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:16,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:59:16,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:16,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:16,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:16,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:16,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:16,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:59:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:16,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:16,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:16,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:59:16,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:16,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:59:16,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 22:59:16,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:16,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 22:59:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:16,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:16,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:16,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:16,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:16,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:16,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:59:16,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:16,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 22:59:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:16,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:16,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:16,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:16,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:16,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:59:16,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:16,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:16,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:16,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:16,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:16,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 22:59:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:16,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:16,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:16,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:16,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:16,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:59:16,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:16,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:16,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 22:59:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:16,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:16,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:16,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:16,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:16,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:59:16,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:16,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:16,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:16,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:16,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:16,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 22:59:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:16,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:16,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:16,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:16,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:16,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:59:16,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:16,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:16,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:16,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:16,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:16,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:59:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:16,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:16,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:16,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:16,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:16,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:59:16,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:16,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:17,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 22:59:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:17,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:17,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:17,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:17,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:17,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:59:17,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:17,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:17,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:17,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:17,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:17,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:59:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:17,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:17,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:17,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:59:17,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:17,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:17,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:17,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:17,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:59:17,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:17,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:17,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:59:17,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103846834] [2020-10-27 22:59:17,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:59:17,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 22:59:17,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798562068] [2020-10-27 22:59:17,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:59:17,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:59:17,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:59:17,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:59:17,142 INFO L87 Difference]: Start difference. First operand 227 states and 296 transitions. Second operand 12 states. [2020-10-27 22:59:17,406 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:59:19,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:59:19,742 INFO L93 Difference]: Finished difference Result 557 states and 760 transitions. [2020-10-27 22:59:19,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:59:19,743 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2020-10-27 22:59:19,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:59:19,747 INFO L225 Difference]: With dead ends: 557 [2020-10-27 22:59:19,747 INFO L226 Difference]: Without dead ends: 388 [2020-10-27 22:59:19,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-27 22:59:19,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-27 22:59:19,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 381. [2020-10-27 22:59:19,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-10-27 22:59:19,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 512 transitions. [2020-10-27 22:59:19,811 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 512 transitions. Word has length 114 [2020-10-27 22:59:19,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:59:19,811 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 512 transitions. [2020-10-27 22:59:19,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:59:19,812 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 512 transitions. [2020-10-27 22:59:19,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-27 22:59:19,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:59:19,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:59:19,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:59:19,822 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:59:19,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:59:19,823 INFO L82 PathProgramCache]: Analyzing trace with hash 54950603, now seen corresponding path program 1 times [2020-10-27 22:59:19,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:59:19,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184048689] [2020-10-27 22:59:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:59:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:19,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:20,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:20,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:20,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:22,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:24,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:24,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 22:59:24,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:59:24,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-27 22:59:24,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:24,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:24,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 22:59:24,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:59:24,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:25,129 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:59:25,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:59:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:25,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:25,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:25,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:59:25,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:25,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:59:25,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:25,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:25,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:25,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:25,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:25,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:59:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:25,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:25,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:25,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:59:25,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:25,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 22:59:25,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 22:59:25,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:25,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 22:59:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:25,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:25,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:25,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:25,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:25,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:25,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:25,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:25,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:25,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:59:25,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:25,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 22:59:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:25,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:25,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:25,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:25,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:25,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:59:25,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:25,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:25,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 22:59:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:25,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:25,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:25,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:25,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:25,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:59:25,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:25,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:25,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:25,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:25,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:25,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 22:59:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:25,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:25,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:25,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:25,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:25,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:59:25,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:25,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:25,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:25,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:25,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:25,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 22:59:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:25,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:25,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:25,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:25,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:25,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:59:25,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:25,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:25,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:25,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:25,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:25,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:59:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:25,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:25,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:25,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:25,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:25,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:59:25,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:25,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:25,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:25,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:25,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:25,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 22:59:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:25,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:25,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:25,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:25,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:25,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:25,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:25,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:25,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:25,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:25,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:25,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:59:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:25,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:25,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:25,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:59:25,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:25,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:25,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:25,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:25,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:59:25,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:25,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:25,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:59:25,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184048689] [2020-10-27 22:59:25,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:59:25,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 22:59:25,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872049463] [2020-10-27 22:59:25,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:59:25,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:59:25,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:59:25,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:59:25,500 INFO L87 Difference]: Start difference. First operand 381 states and 512 transitions. Second operand 12 states. [2020-10-27 22:59:25,723 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:59:27,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:59:27,982 INFO L93 Difference]: Finished difference Result 1011 states and 1396 transitions. [2020-10-27 22:59:27,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:59:27,983 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2020-10-27 22:59:27,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:59:27,988 INFO L225 Difference]: With dead ends: 1011 [2020-10-27 22:59:27,989 INFO L226 Difference]: Without dead ends: 688 [2020-10-27 22:59:27,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-27 22:59:27,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-10-27 22:59:28,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 677. [2020-10-27 22:59:28,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-10-27 22:59:28,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 924 transitions. [2020-10-27 22:59:28,068 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 924 transitions. Word has length 114 [2020-10-27 22:59:28,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:59:28,068 INFO L481 AbstractCegarLoop]: Abstraction has 677 states and 924 transitions. [2020-10-27 22:59:28,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:59:28,068 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 924 transitions. [2020-10-27 22:59:28,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-27 22:59:28,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:59:28,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:59:28,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:59:28,071 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:59:28,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:59:28,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1065024149, now seen corresponding path program 1 times [2020-10-27 22:59:28,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:59:28,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867951721] [2020-10-27 22:59:28,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:59:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:28,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:28,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:28,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:28,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:33,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:33,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 22:59:33,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:59:33,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 22:59:33,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:33,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:33,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-27 22:59:33,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 22:59:33,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:33,340 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:59:33,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:59:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:33,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:33,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:33,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:59:33,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:33,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:59:33,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:33,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:33,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:59:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:33,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:33,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:33,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:59:33,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:33,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:59:33,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:33,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:33,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:33,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 22:59:33,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:33,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 22:59:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:33,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:33,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:33,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:33,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:33,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:33,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:33,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:59:33,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:33,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 22:59:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:33,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:33,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:33,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:33,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:33,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:59:33,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:33,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:33,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 22:59:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:33,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:33,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:33,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:33,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:33,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:59:33,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:33,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:33,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:33,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:33,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:33,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 22:59:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:33,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:33,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:33,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:33,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:33,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 22:59:33,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:33,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:33,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:33,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:33,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:33,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 22:59:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:33,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:33,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:33,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:33,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:33,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:59:33,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:33,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:33,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:59:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:33,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:33,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:33,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:33,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:33,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:33,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:33,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:33,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:33,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:33,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:33,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 22:59:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:33,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:33,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:33,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:33,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:33,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:33,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:33,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:33,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:33,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:33,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:33,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:59:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:33,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:33,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:33,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:59:33,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:33,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:33,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:59:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:33,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:59:33,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867951721] [2020-10-27 22:59:33,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:59:33,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 22:59:33,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248027004] [2020-10-27 22:59:33,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:59:33,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:59:33,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:59:33,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:59:33,707 INFO L87 Difference]: Start difference. First operand 677 states and 924 transitions. Second operand 12 states. [2020-10-27 22:59:33,938 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:59:36,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:59:36,538 INFO L93 Difference]: Finished difference Result 1883 states and 2608 transitions. [2020-10-27 22:59:36,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:59:36,539 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2020-10-27 22:59:36,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:59:36,548 INFO L225 Difference]: With dead ends: 1883 [2020-10-27 22:59:36,548 INFO L226 Difference]: Without dead ends: 1264 [2020-10-27 22:59:36,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2020-10-27 22:59:36,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2020-10-27 22:59:36,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1245. [2020-10-27 22:59:36,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1245 states. [2020-10-27 22:59:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1708 transitions. [2020-10-27 22:59:36,683 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1708 transitions. Word has length 114 [2020-10-27 22:59:36,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:59:36,684 INFO L481 AbstractCegarLoop]: Abstraction has 1245 states and 1708 transitions. [2020-10-27 22:59:36,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:59:36,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1708 transitions. [2020-10-27 22:59:36,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-27 22:59:36,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:59:36,686 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:59:36,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:59:36,687 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:59:36,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:59:36,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1303839627, now seen corresponding path program 1 times [2020-10-27 22:59:36,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:59:36,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022016494] [2020-10-27 22:59:36,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:59:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:36,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:36,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:36,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:41,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:41,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 22:59:41,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:59:41,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 22:59:41,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-27 22:59:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 22:59:41,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:41,984 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:59:41,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:59:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:41,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:42,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:42,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:59:42,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:42,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:59:42,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:42,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:42,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:42,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:59:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:42,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:42,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:42,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:59:42,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:42,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 22:59:42,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:42,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:42,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:42,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:42,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:42,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 22:59:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:42,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:42,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:42,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:42,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:42,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:42,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:59:42,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:42,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 22:59:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:42,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:42,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:42,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:42,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:42,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:59:42,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:42,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:42,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:42,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:42,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:42,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 22:59:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:42,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:42,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:42,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:42,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:42,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:59:42,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:42,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:42,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:42,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:42,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:42,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 22:59:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:42,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:42,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:42,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:42,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:42,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:42,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:42,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:42,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:42,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:42,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:42,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 22:59:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:42,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:42,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:42,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:42,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:42,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:59:42,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:42,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:42,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:59:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:42,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:42,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:42,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:42,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:42,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:42,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:42,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:42,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:42,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 22:59:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:42,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:42,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:42,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:42,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:42,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:59:42,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:42,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:42,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:42,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:42,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:42,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:59:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:42,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:42,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:42,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:59:42,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:42,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:42,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:59:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:42,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:59:42,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022016494] [2020-10-27 22:59:42,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:59:42,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 22:59:42,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29409141] [2020-10-27 22:59:42,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:59:42,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:59:42,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:59:42,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:59:42,366 INFO L87 Difference]: Start difference. First operand 1245 states and 1708 transitions. Second operand 12 states. [2020-10-27 22:59:42,584 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:59:45,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:59:45,430 INFO L93 Difference]: Finished difference Result 3555 states and 4912 transitions. [2020-10-27 22:59:45,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:59:45,430 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2020-10-27 22:59:45,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:59:45,448 INFO L225 Difference]: With dead ends: 3555 [2020-10-27 22:59:45,448 INFO L226 Difference]: Without dead ends: 2368 [2020-10-27 22:59:45,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-27 22:59:45,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2020-10-27 22:59:45,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2333. [2020-10-27 22:59:45,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2333 states. [2020-10-27 22:59:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 3196 transitions. [2020-10-27 22:59:45,718 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 3196 transitions. Word has length 114 [2020-10-27 22:59:45,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:59:45,718 INFO L481 AbstractCegarLoop]: Abstraction has 2333 states and 3196 transitions. [2020-10-27 22:59:45,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:59:45,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 3196 transitions. [2020-10-27 22:59:45,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-27 22:59:45,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:59:45,720 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:59:45,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:59:45,721 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:59:45,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:59:45,721 INFO L82 PathProgramCache]: Analyzing trace with hash -540861995, now seen corresponding path program 1 times [2020-10-27 22:59:45,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:59:45,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041241932] [2020-10-27 22:59:45,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:59:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:45,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:45,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:49,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:49,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 22:59:49,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:59:49,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3955 [2020-10-27 22:59:49,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:49,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:59:49,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 22:59:49,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 22:59:49,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:49,999 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:59:50,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:59:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:50,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:50,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:50,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:59:50,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:50,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:59:50,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:50,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:50,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:50,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:50,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:50,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:59:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:50,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:50,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:50,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:59:50,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:50,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 22:59:50,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:50,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:59:50,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:50,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 22:59:50,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:50,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 22:59:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:50,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:50,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:50,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:50,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:50,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:50,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:50,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:50,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:50,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:59:50,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:50,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 22:59:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:50,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:50,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:50,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:50,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:50,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:59:50,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:50,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:50,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:50,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:50,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:50,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 22:59:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:50,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:50,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:50,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:50,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:50,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:59:50,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:50,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:50,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:50,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:50,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:50,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 22:59:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:50,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:50,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:50,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:50,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:50,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:59:50,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:50,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:50,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 22:59:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:50,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:50,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:50,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:50,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:50,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:59:50,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:50,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:50,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:59:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:50,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:50,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:50,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:50,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:50,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:59:50,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:50,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:50,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:50,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:50,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:50,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 22:59:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:50,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:50,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:50,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:50,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:50,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:59:50,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:50,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:50,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:50,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:50,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:50,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 22:59:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:50,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:50,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:50,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:59:50,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:50,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:59:50,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:59:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:59:50,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:59:50,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041241932] [2020-10-27 22:59:50,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:59:50,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-27 22:59:50,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317339911] [2020-10-27 22:59:50,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 22:59:50,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:59:50,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 22:59:50,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2020-10-27 22:59:50,718 INFO L87 Difference]: Start difference. First operand 2333 states and 3196 transitions. Second operand 22 states. [2020-10-27 22:59:50,996 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 22:59:51,252 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:59:51,491 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:59:51,728 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:59:51,972 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 22:59:52,230 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:59:54,217 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:00:00,093 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:00:00,328 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:00:00,566 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:00:00,787 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:00:01,010 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 23:00:04,538 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:00:06,991 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:00:09,564 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-27 23:00:09,724 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:00:10,206 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:00:14,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:00:14,647 INFO L93 Difference]: Finished difference Result 35620 states and 52294 transitions. [2020-10-27 23:00:14,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2020-10-27 23:00:14,647 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 114 [2020-10-27 23:00:14,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:00:14,909 INFO L225 Difference]: With dead ends: 35620 [2020-10-27 23:00:14,909 INFO L226 Difference]: Without dead ends: 33345 [2020-10-27 23:00:14,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8463 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=3920, Invalid=19032, Unknown=0, NotChecked=0, Total=22952 [2020-10-27 23:00:14,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33345 states. [2020-10-27 23:00:18,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33345 to 30077. [2020-10-27 23:00:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30077 states. [2020-10-27 23:00:18,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30077 states to 30077 states and 41548 transitions. [2020-10-27 23:00:18,583 INFO L78 Accepts]: Start accepts. Automaton has 30077 states and 41548 transitions. Word has length 114 [2020-10-27 23:00:18,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:00:18,583 INFO L481 AbstractCegarLoop]: Abstraction has 30077 states and 41548 transitions. [2020-10-27 23:00:18,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 23:00:18,583 INFO L276 IsEmpty]: Start isEmpty. Operand 30077 states and 41548 transitions. [2020-10-27 23:00:18,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-27 23:00:18,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:00:18,585 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:00:18,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:00:18,585 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:00:18,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:00:18,586 INFO L82 PathProgramCache]: Analyzing trace with hash -159884571, now seen corresponding path program 1 times [2020-10-27 23:00:18,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:00:18,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070914586] [2020-10-27 23:00:18,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:00:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:18,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:18,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:19,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:19,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:22,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:22,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 23:00:22,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:00:22,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4033 [2020-10-27 23:00:22,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:00:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-27 23:00:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:00:22,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:22,908 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:00:22,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:00:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:22,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:22,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:22,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:00:22,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:22,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:00:22,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:00:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:00:22,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:22,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:00:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:22,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:22,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:22,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 23:00:22,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:22,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:00:22,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:00:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:00:22,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:22,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 23:00:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:22,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:22,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:22,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:00:22,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:22,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:00:22,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:22,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:00:22,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:22,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:00:22,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:22,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:00:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:22,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:22,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:22,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:22,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:22,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:00:22,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:22,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:00:22,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:22,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:00:22,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:23,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:00:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:23,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:23,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:23,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:23,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:23,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:00:23,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:23,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:00:23,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:00:23,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:23,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:00:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:23,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:23,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:23,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:23,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:23,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:00:23,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:23,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:00:23,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:23,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:00:23,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:23,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:00:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:23,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:23,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:23,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:23,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:23,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:00:23,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:00:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:00:23,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:23,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:00:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:23,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:23,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:23,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:23,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:23,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:00:23,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:23,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:00:23,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:23,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:00:23,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:23,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:00:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:23,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:23,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:23,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:23,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:23,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:00:23,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:23,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:00:23,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:23,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:00:23,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:23,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 23:00:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:23,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:23,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:23,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:23,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:00:23,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:00:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:00:23,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:00:23,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 23:00:23,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:23,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:00:23,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070914586] [2020-10-27 23:00:23,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:00:23,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:00:23,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830214176] [2020-10-27 23:00:23,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:00:23,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:00:23,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:00:23,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:00:23,201 INFO L87 Difference]: Start difference. First operand 30077 states and 41548 transitions. Second operand 14 states. [2020-10-27 23:00:24,674 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:00:30,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:00:30,032 INFO L93 Difference]: Finished difference Result 88195 states and 122096 transitions. [2020-10-27 23:00:30,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:00:30,033 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 116 [2020-10-27 23:00:30,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:00:30,506 INFO L225 Difference]: With dead ends: 88195 [2020-10-27 23:00:30,506 INFO L226 Difference]: Without dead ends: 58176 [2020-10-27 23:00:30,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:00:30,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58176 states. [2020-10-27 23:00:35,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58176 to 56925. [2020-10-27 23:00:35,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56925 states. [2020-10-27 23:00:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56925 states to 56925 states and 78012 transitions. [2020-10-27 23:00:35,839 INFO L78 Accepts]: Start accepts. Automaton has 56925 states and 78012 transitions. Word has length 116 [2020-10-27 23:00:35,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:00:35,840 INFO L481 AbstractCegarLoop]: Abstraction has 56925 states and 78012 transitions. [2020-10-27 23:00:35,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:00:35,840 INFO L276 IsEmpty]: Start isEmpty. Operand 56925 states and 78012 transitions. [2020-10-27 23:00:35,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-27 23:00:35,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:00:35,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:00:35,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:00:35,842 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:00:35,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:00:35,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1423955043, now seen corresponding path program 1 times [2020-10-27 23:00:35,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:00:35,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176205372] [2020-10-27 23:00:35,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:00:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:35,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:35,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:40,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:40,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 23:00:40,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:00:40,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4780 [2020-10-27 23:00:40,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 23:00:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 23:00:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-27 23:00:40,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:40,931 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:00:40,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:00:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:40,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:40,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:40,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:00:40,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:00:40,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:00:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:00:40,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:40,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:00:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:40,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:40,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:40,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 23:00:40,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:40,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 23:00:40,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:40,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:00:40,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:40,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 23:00:40,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:41,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 23:00:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:41,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:41,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:41,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:00:41,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:41,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:00:41,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:41,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:00:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:41,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:00:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:41,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:41,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:41,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:41,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:41,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:00:41,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:41,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:41,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:00:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:41,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:41,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:41,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:41,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:41,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:00:41,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:41,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:00:41,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:00:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:41,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:41,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:41,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:41,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:41,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:00:41,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:41,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:41,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:00:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:41,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:41,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:41,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:41,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:41,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:00:41,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:41,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:41,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:00:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:41,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:41,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:41,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:41,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:41,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:00:41,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:41,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:41,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:00:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:41,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:41,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:41,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:41,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:41,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:00:41,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:41,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:41,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:41,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:41,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:41,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 23:00:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:41,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:41,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:41,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:00:41,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:41,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:00:41,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 23:00:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:00:41,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:41,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:00:41,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176205372] [2020-10-27 23:00:41,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:00:41,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-27 23:00:41,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991379888] [2020-10-27 23:00:41,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-27 23:00:41,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:00:41,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-27 23:00:41,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2020-10-27 23:00:41,638 INFO L87 Difference]: Start difference. First operand 56925 states and 78012 transitions. Second operand 23 states. [2020-10-27 23:00:42,010 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-27 23:00:42,273 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:00:42,540 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 23:00:42,802 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:00:43,059 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:00:43,334 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:00:44,167 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 23:00:45,113 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-27 23:00:46,937 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:00:48,009 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:00:49,526 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:00:49,911 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:00:51,545 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:00:51,909 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:00:52,502 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:00:54,170 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-27 23:00:55,352 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:00:55,598 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:00:55,838 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:00:57,515 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:00:59,972 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:01:01,748 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 23:01:02,295 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:01:02,624 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:01:02,758 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:01:04,999 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:01:05,136 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:01:07,110 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:01:07,902 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:01:09,204 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:01:09,565 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:01:10,591 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-27 23:01:14,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:01:14,295 INFO L93 Difference]: Finished difference Result 150538 states and 209018 transitions. [2020-10-27 23:01:14,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2020-10-27 23:01:14,296 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 116 [2020-10-27 23:01:14,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:01:15,078 INFO L225 Difference]: With dead ends: 150538 [2020-10-27 23:01:15,079 INFO L226 Difference]: Without dead ends: 93671 [2020-10-27 23:01:15,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10123 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=4141, Invalid=22919, Unknown=0, NotChecked=0, Total=27060 [2020-10-27 23:01:15,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93671 states. [2020-10-27 23:01:23,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93671 to 90013. [2020-10-27 23:01:23,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90013 states. [2020-10-27 23:01:23,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90013 states to 90013 states and 124604 transitions. [2020-10-27 23:01:23,719 INFO L78 Accepts]: Start accepts. Automaton has 90013 states and 124604 transitions. Word has length 116 [2020-10-27 23:01:23,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:01:23,720 INFO L481 AbstractCegarLoop]: Abstraction has 90013 states and 124604 transitions. [2020-10-27 23:01:23,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-27 23:01:23,720 INFO L276 IsEmpty]: Start isEmpty. Operand 90013 states and 124604 transitions. [2020-10-27 23:01:23,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-27 23:01:23,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:01:23,722 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:01:23,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 23:01:23,722 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:01:23,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:01:23,724 INFO L82 PathProgramCache]: Analyzing trace with hash -132498015, now seen corresponding path program 1 times [2020-10-27 23:01:23,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:01:23,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390897280] [2020-10-27 23:01:23,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:01:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:24,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:25,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:25,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 23:01:25,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:01:25,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1772 [2020-10-27 23:01:25,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:25,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:25,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 23:01:25,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 23:01:25,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:25,777 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:01:25,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:01:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:25,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:25,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:25,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:01:25,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:25,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:01:25,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:25,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:25,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:25,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:25,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:25,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:01:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:25,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:25,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:25,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 23:01:25,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:25,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:01:25,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:25,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:25,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:25,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 23:01:25,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:25,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 23:01:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:25,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:25,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:25,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:01:25,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:25,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:01:25,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:01:25,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:25,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:01:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:25,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:25,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:25,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:25,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:25,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:01:25,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:25,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:25,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:01:25,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:01:25,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:25,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:01:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:25,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:25,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:25,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:25,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:25,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:01:25,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:25,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:25,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:01:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:25,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:25,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:25,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:25,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:25,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:01:25,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:25,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:01:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:25,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:25,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:25,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:25,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:25,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:01:25,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:25,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:25,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:25,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:25,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:25,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:01:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:25,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:25,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:26,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:26,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:26,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:01:26,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:26,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:26,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:01:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:26,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:26,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:26,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:26,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:26,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:01:26,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:26,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:26,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 23:01:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:26,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:26,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:26,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:26,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:01:26,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:01:26,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:01:26,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 23:01:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:01:26,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:26,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:01:26,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390897280] [2020-10-27 23:01:26,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:01:26,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:01:26,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462070395] [2020-10-27 23:01:26,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:01:26,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:01:26,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:01:26,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:01:26,088 INFO L87 Difference]: Start difference. First operand 90013 states and 124604 transitions. Second operand 12 states. [2020-10-27 23:01:26,339 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 23:01:28,387 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:01:39,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:01:39,247 INFO L93 Difference]: Finished difference Result 216482 states and 300594 transitions. [2020-10-27 23:01:39,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 23:01:39,248 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-10-27 23:01:39,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:01:39,775 INFO L225 Difference]: With dead ends: 216482 [2020-10-27 23:01:39,775 INFO L226 Difference]: Without dead ends: 126527 [2020-10-27 23:01:40,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=262, Invalid=794, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 23:01:40,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126527 states. [2020-10-27 23:01:50,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126527 to 124217. [2020-10-27 23:01:50,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124217 states. [2020-10-27 23:01:51,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124217 states to 124217 states and 170564 transitions. [2020-10-27 23:01:51,111 INFO L78 Accepts]: Start accepts. Automaton has 124217 states and 170564 transitions. Word has length 117 [2020-10-27 23:01:51,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:01:51,111 INFO L481 AbstractCegarLoop]: Abstraction has 124217 states and 170564 transitions. [2020-10-27 23:01:51,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:01:51,111 INFO L276 IsEmpty]: Start isEmpty. Operand 124217 states and 170564 transitions. [2020-10-27 23:01:51,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-27 23:01:51,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:01:51,113 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:01:51,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 23:01:51,113 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:01:51,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:01:51,114 INFO L82 PathProgramCache]: Analyzing trace with hash -601931776, now seen corresponding path program 1 times [2020-10-27 23:01:51,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:01:51,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997159201] [2020-10-27 23:01:51,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:01:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:51,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:51,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:54,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:54,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 23:01:54,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:01:54,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3158 [2020-10-27 23:01:54,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:54,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:01:54,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-10-27 23:01:54,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:01:54,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:54,582 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:01:54,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:01:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:54,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:54,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:54,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:01:54,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:54,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:01:54,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:54,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:54,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:54,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:54,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:54,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:01:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:54,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:54,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:54,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 23:01:54,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:54,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:01:54,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:54,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:54,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:54,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:54,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:54,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 23:01:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:54,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:54,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:54,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:01:54,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:54,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:01:54,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:54,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:54,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:54,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:01:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:54,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:54,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:54,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:54,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:54,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:01:54,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:54,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:54,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:54,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:54,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:54,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:01:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:54,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:54,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:54,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:54,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:54,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:01:54,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:54,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:54,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:54,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:54,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:01:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:54,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:54,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:54,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:54,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:54,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:01:54,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:54,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:54,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:54,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:54,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:54,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:01:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:54,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:54,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:54,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:54,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:54,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:01:54,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:54,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:54,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:54,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:54,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:54,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:01:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:54,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:54,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:54,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:54,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:54,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:01:54,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:54,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:54,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:54,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:54,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:54,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:01:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:54,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:54,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:54,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:54,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:54,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:01:54,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:54,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:54,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:54,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:54,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:54,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 23:01:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:54,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:54,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:54,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:01:54,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:54,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:01:54,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:01:54,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:01:54,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997159201] [2020-10-27 23:01:54,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:01:54,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 23:01:54,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289407612] [2020-10-27 23:01:54,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 23:01:54,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:01:54,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 23:01:54,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-27 23:01:54,870 INFO L87 Difference]: Start difference. First operand 124217 states and 170564 transitions. Second operand 15 states. [2020-10-27 23:01:56,326 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:01:56,552 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 23:01:56,832 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 23:01:57,062 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:02:07,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:02:07,528 INFO L93 Difference]: Finished difference Result 134509 states and 192579 transitions. [2020-10-27 23:02:07,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 23:02:07,529 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 117 [2020-10-27 23:02:07,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:02:08,147 INFO L225 Difference]: With dead ends: 134509 [2020-10-27 23:02:08,147 INFO L226 Difference]: Without dead ends: 134506 [2020-10-27 23:02:08,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-10-27 23:02:08,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134506 states.