/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:01:53,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:01:53,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:01:53,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:01:53,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:01:53,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:01:53,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:01:53,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:01:53,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:01:53,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:01:53,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:01:53,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:01:53,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:01:53,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:01:53,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:01:53,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:01:53,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:01:53,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:01:53,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:01:53,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:01:53,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:01:53,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:01:53,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:01:53,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:01:53,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:01:53,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:01:53,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:01:53,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:01:53,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:01:53,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:01:53,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:01:53,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:01:53,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:01:53,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:01:53,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:01:53,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:01:53,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:01:53,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:01:53,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:01:53,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:01:53,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:01:53,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 03:01:53,910 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:01:53,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:01:53,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:01:53,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:01:53,912 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:01:53,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:01:53,913 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:01:53,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:01:53,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:01:53,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:01:53,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:01:53,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:01:53,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:01:53,914 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:01:53,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:01:53,914 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:01:53,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:01:53,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:01:53,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:01:53,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:01:53,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:01:53,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:01:53,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:01:53,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:01:53,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:01:53,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:01:53,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:01:53,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:01:53,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:01:53,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:01:54,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:01:54,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:01:54,421 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:01:54,424 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:01:54,424 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:01:54,426 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-25 03:01:54,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40b692676/bd4370e9f270428c9d75bbb955ca277d/FLAG0504f7759 [2020-09-25 03:01:55,129 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:01:55,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-25 03:01:55,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40b692676/bd4370e9f270428c9d75bbb955ca277d/FLAG0504f7759 [2020-09-25 03:01:55,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40b692676/bd4370e9f270428c9d75bbb955ca277d [2020-09-25 03:01:55,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:01:55,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:01:55,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:01:55,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:01:55,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:01:55,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:01:55" (1/1) ... [2020-09-25 03:01:55,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b45ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:55, skipping insertion in model container [2020-09-25 03:01:55,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:01:55" (1/1) ... [2020-09-25 03:01:55,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:01:55,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:01:55,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:01:55,976 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:01:56,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:01:56,142 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:01:56,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:56 WrapperNode [2020-09-25 03:01:56,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:01:56,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:01:56,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:01:56,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:01:56,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:56" (1/1) ... [2020-09-25 03:01:56,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:56" (1/1) ... [2020-09-25 03:01:56,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:56" (1/1) ... [2020-09-25 03:01:56,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:56" (1/1) ... [2020-09-25 03:01:56,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:56" (1/1) ... [2020-09-25 03:01:56,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:56" (1/1) ... [2020-09-25 03:01:56,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:56" (1/1) ... [2020-09-25 03:01:56,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:01:56,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:01:56,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:01:56,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:01:56,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:01:56,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:01:56,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:01:56,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 03:01:56,340 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 03:01:56,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 03:01:56,340 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 03:01:56,341 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 03:01:56,341 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 03:01:56,342 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 03:01:56,342 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 03:01:56,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 03:01:56,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 03:01:56,343 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 03:01:56,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 03:01:56,343 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 03:01:56,344 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 03:01:56,344 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 03:01:56,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 03:01:56,344 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 03:01:56,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:01:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 03:01:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 03:01:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 03:01:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 03:01:56,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 03:01:56,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 03:01:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 03:01:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 03:01:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 03:01:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 03:01:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 03:01:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 03:01:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 03:01:56,349 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 03:01:56,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 03:01:56,349 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 03:01:56,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 03:01:56,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 03:01:56,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:01:56,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:01:56,350 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 03:01:56,350 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 03:01:56,350 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 03:01:56,350 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 03:01:56,350 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 03:01:56,350 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 03:01:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 03:01:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 03:01:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 03:01:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 03:01:56,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 03:01:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 03:01:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 03:01:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 03:01:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 03:01:56,353 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 03:01:56,353 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 03:01:56,353 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 03:01:56,353 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 03:01:56,353 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 03:01:56,353 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 03:01:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 03:01:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:01:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 03:01:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 03:01:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 03:01:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 03:01:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 03:01:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 03:01:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:01:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 03:01:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:01:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:01:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 03:01:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:01:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:01:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:01:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:01:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 03:01:56,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:01:56,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 03:01:56,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 03:01:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:01:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 03:01:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 03:01:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 03:01:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 03:01:56,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:01:56,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 03:01:56,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:01:57,556 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:01:57,556 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 03:01:57,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:01:57 BoogieIcfgContainer [2020-09-25 03:01:57,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:01:57,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:01:57,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:01:57,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:01:57,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:01:55" (1/3) ... [2020-09-25 03:01:57,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d857399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:01:57, skipping insertion in model container [2020-09-25 03:01:57,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:56" (2/3) ... [2020-09-25 03:01:57,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d857399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:01:57, skipping insertion in model container [2020-09-25 03:01:57,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:01:57" (3/3) ... [2020-09-25 03:01:57,574 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-09-25 03:01:57,587 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:01:57,598 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:01:57,619 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:01:57,652 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:01:57,653 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:01:57,653 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:01:57,653 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:01:57,653 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:01:57,653 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:01:57,653 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:01:57,653 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:01:57,679 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2020-09-25 03:01:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 03:01:57,697 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:01:57,698 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:01:57,699 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:01:57,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:01:57,707 INFO L82 PathProgramCache]: Analyzing trace with hash 808133404, now seen corresponding path program 1 times [2020-09-25 03:01:57,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:01:57,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76520838] [2020-09-25 03:01:57,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:01:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:58,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:58,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:59,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:00,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:03,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:03,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 03:02:03,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:02:03,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-09-25 03:02:03,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:02:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 03:02:03,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:02:03,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 03:02:03,629 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:02:03,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:02:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:03,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:03,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:03,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:02:03,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:03,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-25 03:02:03,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 03:02:03,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:04,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:02:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:04,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:04,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:04,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:04,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:04,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:02:04,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:04,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:04,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:02:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:04,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:04,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:04,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:04,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:04,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:02:04,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:04,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:04,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:02:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:04,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:04,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:04,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:04,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:04,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:02:04,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:02:04,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:04,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:02:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:04,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:04,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:04,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:04,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:04,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:02:04,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:04,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:04,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:04,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:04,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:04,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:02:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:04,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:04,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:04,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:04,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:04,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:02:04,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:04,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:02:04,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:02:04,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:04,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 03:02:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:04,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:04,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:04,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:04,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:04,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:02:04,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:04,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:04,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:02:04,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:04,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:04,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:02:04,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76520838] [2020-09-25 03:02:04,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:02:04,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:02:04,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551636948] [2020-09-25 03:02:04,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:02:04,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:02:04,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:02:04,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:02:04,273 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 8 states. [2020-09-25 03:02:04,919 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:02:06,023 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:06,381 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:02:06,804 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:07,190 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:02:07,490 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:02:07,830 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:08,164 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:10,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:02:10,140 INFO L93 Difference]: Finished difference Result 573 states and 722 transitions. [2020-09-25 03:02:10,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:02:10,143 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 03:02:10,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:02:10,165 INFO L225 Difference]: With dead ends: 573 [2020-09-25 03:02:10,165 INFO L226 Difference]: Without dead ends: 397 [2020-09-25 03:02:10,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:02:10,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-09-25 03:02:10,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 355. [2020-09-25 03:02:10,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-25 03:02:10,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 409 transitions. [2020-09-25 03:02:10,307 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 409 transitions. Word has length 142 [2020-09-25 03:02:10,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:02:10,308 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 409 transitions. [2020-09-25 03:02:10,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:02:10,308 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 409 transitions. [2020-09-25 03:02:10,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 03:02:10,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:02:10,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:02:10,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:02:10,315 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:02:10,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:02:10,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1813507587, now seen corresponding path program 1 times [2020-09-25 03:02:10,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:02:10,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635974851] [2020-09-25 03:02:10,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:02:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:10,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:10,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:11,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:14,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:15,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:15,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 03:02:15,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:02:15,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 03:02:15,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:15,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:02:15,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 03:02:15,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 03:02:15,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:15,742 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:02:15,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:02:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:15,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:16,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:16,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:02:16,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-25 03:02:16,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 03:02:16,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:16,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:02:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:16,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:16,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:16,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:16,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:16,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:16,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:16,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:16,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:16,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:16,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:02:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:16,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:16,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:16,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:16,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:16,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:16,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:16,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:16,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:16,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:16,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:16,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:02:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:16,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:16,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:16,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:16,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:16,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:02:16,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:16,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:16,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:16,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:02:16,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:16,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:02:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:16,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:16,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:16,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:16,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:16,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:16,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:16,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:16,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:16,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:16,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:16,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 03:02:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:16,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:16,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:16,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:02:16,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:16,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:02:16,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:02:16,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:16,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 03:02:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:16,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:16,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:16,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:16,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:16,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:16,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:02:16,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:16,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 03:02:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:16,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:16,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:16,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:16,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:16,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:02:16,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:02:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:02:16,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:16,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:02:16,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635974851] [2020-09-25 03:02:16,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:02:16,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 03:02:16,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806245654] [2020-09-25 03:02:16,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:02:16,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:02:16,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:02:16,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:02:16,268 INFO L87 Difference]: Start difference. First operand 355 states and 409 transitions. Second operand 9 states. [2020-09-25 03:02:16,858 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:02:18,511 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:02:18,826 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:19,155 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:19,544 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:19,846 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:02:20,140 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:20,442 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:02:20,767 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:02:21,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:02:21,541 INFO L93 Difference]: Finished difference Result 868 states and 1173 transitions. [2020-09-25 03:02:21,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:02:21,542 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 03:02:21,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:02:21,557 INFO L225 Difference]: With dead ends: 868 [2020-09-25 03:02:21,558 INFO L226 Difference]: Without dead ends: 623 [2020-09-25 03:02:21,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:02:21,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-09-25 03:02:21,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 508. [2020-09-25 03:02:21,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-09-25 03:02:21,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 631 transitions. [2020-09-25 03:02:21,721 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 631 transitions. Word has length 148 [2020-09-25 03:02:21,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:02:21,724 INFO L479 AbstractCegarLoop]: Abstraction has 508 states and 631 transitions. [2020-09-25 03:02:21,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:02:21,725 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 631 transitions. [2020-09-25 03:02:21,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-25 03:02:21,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:02:21,735 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:02:21,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:02:21,736 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:02:21,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:02:21,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1116441452, now seen corresponding path program 1 times [2020-09-25 03:02:21,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:02:21,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449683668] [2020-09-25 03:02:21,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:02:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:21,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:21,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:22,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:22,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:26,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:26,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:26,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:26,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-25 03:02:26,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:02:26,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 03:02:26,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:26,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:02:26,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 03:02:26,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-09-25 03:02:26,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:27,222 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:02:27,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:02:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:02:27,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:27,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 03:02:27,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:27,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 03:02:27,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:27,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:02:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:27,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:27,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:27,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:27,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:27,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:27,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:02:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:27,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:27,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:02:27,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:27,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:27,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:27,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:02:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:27,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:27,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:02:27,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:27,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:02:27,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:27,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:02:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:27,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:27,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:27,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:27,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:27,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 03:02:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:02:27,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:02:27,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 03:02:27,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 03:02:27,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 03:02:27,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:02:27,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:27,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:02:27,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:27,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:27,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:27,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:27,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:27,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:27,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:27,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 03:02:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 03:02:27,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:02:27,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 03:02:27,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:02:27,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:27,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:02:28,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:02:28,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 03:02:28,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:02:28,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 03:02:28,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:02:28,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:28,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:02:28,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 03:02:28,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:02:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 03:02:28,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:02:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:02:28,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:02:28,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:02:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:02:28,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:28,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:02:28,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 03:02:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:02:28,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:02:28,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:28,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:28,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:28,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:28,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 03:02:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:02:28,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:02:28,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:28,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:02:28,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 03:02:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:28,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:28,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:02:28,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 03:02:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:28,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:28,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:02:28,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:28,436 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-25 03:02:28,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449683668] [2020-09-25 03:02:28,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:02:28,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 03:02:28,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708347313] [2020-09-25 03:02:28,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 03:02:28,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:02:28,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 03:02:28,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:02:28,441 INFO L87 Difference]: Start difference. First operand 508 states and 631 transitions. Second operand 12 states. [2020-09-25 03:02:28,924 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:02:30,083 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:02:30,406 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:02:30,738 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:02:31,087 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:02:31,447 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:02:31,761 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:02:32,374 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:02:32,670 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:02:32,985 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:02:33,325 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:33,697 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:02:34,023 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:02:36,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:02:36,094 INFO L93 Difference]: Finished difference Result 1665 states and 2445 transitions. [2020-09-25 03:02:36,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 03:02:36,095 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 229 [2020-09-25 03:02:36,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:02:36,107 INFO L225 Difference]: With dead ends: 1665 [2020-09-25 03:02:36,107 INFO L226 Difference]: Without dead ends: 1267 [2020-09-25 03:02:36,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2020-09-25 03:02:36,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2020-09-25 03:02:36,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 919. [2020-09-25 03:02:36,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-09-25 03:02:36,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1160 transitions. [2020-09-25 03:02:36,257 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1160 transitions. Word has length 229 [2020-09-25 03:02:36,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:02:36,258 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1160 transitions. [2020-09-25 03:02:36,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 03:02:36,258 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1160 transitions. [2020-09-25 03:02:36,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-25 03:02:36,263 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:02:36,264 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:02:36,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:02:36,264 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:02:36,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:02:36,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1521360857, now seen corresponding path program 1 times [2020-09-25 03:02:36,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:02:36,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1850973610] [2020-09-25 03:02:36,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:02:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:36,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:36,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:36,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:38,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:38,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-25 03:02:38,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:02:38,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1920 [2020-09-25 03:02:38,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:38,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:38,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 03:02:38,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 03:02:38,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:38,595 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:02:38,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:02:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:38,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:38,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:38,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:02:38,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:38,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 03:02:38,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:38,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:38,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:38,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:38,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:38,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:02:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:38,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:38,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:38,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:38,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:38,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:38,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:38,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:38,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:38,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:38,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:38,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:02:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:38,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:38,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:38,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:38,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:38,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:38,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:38,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:38,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:02:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:38,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:38,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:38,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:38,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:38,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:38,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:38,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:38,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:38,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:38,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:38,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:02:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:38,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:38,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:38,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:38,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:38,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:02:38,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:38,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:38,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:38,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:38,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:38,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 03:02:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:38,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:38,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:38,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:38,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 03:02:38,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:02:38,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 03:02:38,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:38,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:38,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:38,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:02:38,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:38,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:38,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:38,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:39,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:39,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:02:39,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:02:39,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 03:02:39,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:39,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:02:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:02:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:02:39,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:39,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:39,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:39,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:39,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:02:39,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:39,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 03:02:39,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:02:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:02:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:02:39,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:39,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:02:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:39,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:39,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:39,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:02:39,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:39,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:02:39,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:39,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:02:39,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:39,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:02:39,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:39,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:02:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:39,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:39,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:39,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:02:39,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:39,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:39,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:02:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:39,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:39,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 03:02:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:39,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:39,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:39,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:02:39,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:39,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:02:39,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:39,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:39,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:39,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:39,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:39,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:39,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:39,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:39,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:39,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:39,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:39,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:39,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:39,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:39,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:39,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:39,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 03:02:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:39,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:39,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:39,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:02:39,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:39,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:02:39,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:39,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:39,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:02:39,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:39,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:39,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 03:02:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:39,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:39,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:39,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 03:02:39,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:39,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:02:39,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:39,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:39,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 03:02:39,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:39,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:39,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:39,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:39,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:39,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:39,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:39,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:39,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:39,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:39,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:39,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:39,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:39,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-09-25 03:02:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:39,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:39,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:39,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:39,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:39,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:39,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:39,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:39,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:02:39,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:39,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:39,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-25 03:02:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:39,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:39,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:39,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:39,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:39,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:39,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:39,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:39,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:02:39,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:39,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:39,266 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 03:02:39,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1850973610] [2020-09-25 03:02:39,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:02:39,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:02:39,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352719058] [2020-09-25 03:02:39,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:02:39,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:02:39,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:02:39,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:02:39,270 INFO L87 Difference]: Start difference. First operand 919 states and 1160 transitions. Second operand 11 states. [2020-09-25 03:02:40,091 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:02:41,058 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:02:41,307 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:02:41,625 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:02:41,940 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:02:42,236 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:02:43,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:02:43,430 INFO L93 Difference]: Finished difference Result 1828 states and 2388 transitions. [2020-09-25 03:02:43,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 03:02:43,431 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 223 [2020-09-25 03:02:43,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:02:43,443 INFO L225 Difference]: With dead ends: 1828 [2020-09-25 03:02:43,443 INFO L226 Difference]: Without dead ends: 1019 [2020-09-25 03:02:43,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2020-09-25 03:02:43,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2020-09-25 03:02:43,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 825. [2020-09-25 03:02:43,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-09-25 03:02:43,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 962 transitions. [2020-09-25 03:02:43,652 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 962 transitions. Word has length 223 [2020-09-25 03:02:43,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:02:43,654 INFO L479 AbstractCegarLoop]: Abstraction has 825 states and 962 transitions. [2020-09-25 03:02:43,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:02:43,654 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 962 transitions. [2020-09-25 03:02:43,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 03:02:43,662 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:02:43,662 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:02:43,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:02:43,663 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:02:43,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:02:43,664 INFO L82 PathProgramCache]: Analyzing trace with hash 485881526, now seen corresponding path program 1 times [2020-09-25 03:02:43,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:02:43,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997343773] [2020-09-25 03:02:43,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:02:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:43,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking...