/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:58:58,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:58:58,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:58:58,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:58:58,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:58:58,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:58:58,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:58:58,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:58:58,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:58:58,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:58:58,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:58:58,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:58:58,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:58:58,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:58:58,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:58:58,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:58:58,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:58:58,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:58:58,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:58:58,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:58:58,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:58:58,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:58:58,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:58:58,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:58:58,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:58:58,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:58:58,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:58:58,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:58:58,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:58:58,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:58:58,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:58:58,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:58:58,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:58:58,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:58:58,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:58:58,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:58:58,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:58:58,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:58:58,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:58:58,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:58:58,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:58:58,224 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:58:58,250 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:58:58,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:58:58,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:58:58,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:58:58,252 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:58:58,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:58:58,253 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:58:58,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:58:58,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:58:58,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:58:58,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:58:58,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:58:58,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:58:58,254 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:58:58,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:58:58,255 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:58:58,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:58:58,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:58:58,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:58:58,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:58:58,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:58:58,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:58:58,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:58:58,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:58:58,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:58:58,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:58:58,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:58:58,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:58:58,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:58:58,258 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;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;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;log-additional-information=true; [2020-09-24 16:58:58,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:58:58,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:58:58,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:58:58,783 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:58:58,783 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:58:58,785 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product52.cil.c [2020-09-24 16:58:58,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e244b883/c755eebc37cc41d29f71680a28d0302f/FLAGad06f41f5 [2020-09-24 16:58:59,491 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:58:59,493 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product52.cil.c [2020-09-24 16:58:59,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e244b883/c755eebc37cc41d29f71680a28d0302f/FLAGad06f41f5 [2020-09-24 16:58:59,811 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e244b883/c755eebc37cc41d29f71680a28d0302f [2020-09-24 16:58:59,824 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:58:59,830 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:58:59,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:58:59,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:58:59,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:58:59,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:59" (1/1) ... [2020-09-24 16:58:59,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d265cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:59, skipping insertion in model container [2020-09-24 16:58:59,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:59" (1/1) ... [2020-09-24 16:58:59,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:58:59,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:59:00,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:59:00,320 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:59:00,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:59:00,544 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:59:00,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:00 WrapperNode [2020-09-24 16:59:00,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:59:00,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:59:00,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:59:00,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:59:00,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:00" (1/1) ... [2020-09-24 16:59:00,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:00" (1/1) ... [2020-09-24 16:59:00,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:00" (1/1) ... [2020-09-24 16:59:00,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:00" (1/1) ... [2020-09-24 16:59:00,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:00" (1/1) ... [2020-09-24 16:59:00,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:00" (1/1) ... [2020-09-24 16:59:00,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:00" (1/1) ... [2020-09-24 16:59:00,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:59:00,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:59:00,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:59:00,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:59:00,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:59:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:59:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:59:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:59:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:59:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:59:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:59:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:59:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:59:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:59:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:59:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:59:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:59:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:59:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:59:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:59:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:59:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:59:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:59:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:59:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:59:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:59:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:59:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:59:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:59:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:59:00,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:59:00,756 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:59:00,756 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:59:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:59:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:59:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:59:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:59:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:59:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:59:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:59:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:59:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:59:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:59:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:59:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:59:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:59:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:59:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:59:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:59:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:59:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:59:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:59:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:59:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:59:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:59:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:59:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:59:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:59:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:59:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:59:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:59:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:59:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:59:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:59:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:59:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:59:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:59:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:59:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:59:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:59:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:59:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:59:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:59:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:59:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:59:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:59:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:59:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:59:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:59:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:59:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:59:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:59:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:59:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:59:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:59:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:59:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:59:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:59:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:59:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:59:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:59:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:59:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:59:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:59:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:59:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:59:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:59:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:59:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:59:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:59:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:59:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:59:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:59:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:59:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:59:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:59:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:59:02,149 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:59:02,149 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:59:02,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:59:02 BoogieIcfgContainer [2020-09-24 16:59:02,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:59:02,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:59:02,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:59:02,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:59:02,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:58:59" (1/3) ... [2020-09-24 16:59:02,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aec8e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:59:02, skipping insertion in model container [2020-09-24 16:59:02,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:59:00" (2/3) ... [2020-09-24 16:59:02,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aec8e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:59:02, skipping insertion in model container [2020-09-24 16:59:02,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:59:02" (3/3) ... [2020-09-24 16:59:02,168 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2020-09-24 16:59:02,181 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:59:02,193 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:59:02,217 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:59:02,253 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:59:02,253 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:59:02,254 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:59:02,254 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:59:02,254 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:59:02,254 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:59:02,254 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:59:02,255 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:59:02,286 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-09-24 16:59:02,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:59:02,308 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:02,309 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 16:59:02,310 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:02,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:02,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1537193483, now seen corresponding path program 1 times [2020-09-24 16:59:02,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:02,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774010348] [2020-09-24 16:59:02,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:02,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:03,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:04,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:04,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:07,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:18,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:18,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 16:59:18,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:59:18,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16185 [2020-09-24 16:59:18,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:18,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:18,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-24 16:59:18,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 16:59:18,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:59:19,537 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:19,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:19,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:19,758 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:19,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:19,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:19,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-24 16:59:19,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:19,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:19,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:19,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:19,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:19,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:19,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:19,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:19,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:19,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:19,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:19,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:19,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:19,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:19,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:19,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:19,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:19,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:19,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:19,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:19,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 16:59:19,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:19,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:19,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:19,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 16:59:19,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:19,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:19,926 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:19,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:19,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:19,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:59:19,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:19,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:19,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:19,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:19,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:19,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:19,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:19,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:19,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:19,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:19,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:19,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:19,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:19,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:19,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:19,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:19,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:19,966 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:19,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:19,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:19,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:19,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:19,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:19,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:19,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:59:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:19,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:19,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:19,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:19,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:19,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:19,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:19,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:19,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:19,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:19,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:19,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:19,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:19,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:19,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:19,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:19,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:19,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:20,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:20,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 16:59:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,012 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:20,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:20,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:20,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:20,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 16:59:20,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:59:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:20,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:20,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:20,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:20,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:20,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:59:20,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:20,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:20,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:20,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:20,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:59:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:59:20,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774010348] [2020-09-24 16:59:20,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:20,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:59:20,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266882833] [2020-09-24 16:59:20,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:59:20,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:20,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:59:20,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:59:20,238 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 9 states. [2020-09-24 16:59:21,040 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:59:21,896 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:59:22,220 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 16:59:23,535 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:23,869 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:59:24,218 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:24,689 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:25,069 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:59:25,378 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:26,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:26,409 INFO L93 Difference]: Finished difference Result 645 states and 784 transitions. [2020-09-24 16:59:26,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:59:26,411 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 16:59:26,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:26,434 INFO L225 Difference]: With dead ends: 645 [2020-09-24 16:59:26,434 INFO L226 Difference]: Without dead ends: 434 [2020-09-24 16:59:26,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:59:26,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-09-24 16:59:26,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 383. [2020-09-24 16:59:26,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-09-24 16:59:26,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 430 transitions. [2020-09-24 16:59:26,596 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 430 transitions. Word has length 160 [2020-09-24 16:59:26,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:26,598 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 430 transitions. [2020-09-24 16:59:26,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:59:26,598 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 430 transitions. [2020-09-24 16:59:26,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 16:59:26,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:26,604 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2020-09-24 16:59:26,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:59:26,605 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:26,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:26,606 INFO L82 PathProgramCache]: Analyzing trace with hash 504237384, now seen corresponding path program 1 times [2020-09-24 16:59:26,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:26,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253468118] [2020-09-24 16:59:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:26,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:26,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:28,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:28,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 16:59:28,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:59:28,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2142 [2020-09-24 16:59:28,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:28,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:28,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 16:59:28,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:59:28,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:29,194 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:29,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,326 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:29,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 16:59:29,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:29,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:29,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:59:29,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:29,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:59:29,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:29,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:29,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:29,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:29,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:29,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:29,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,405 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:29,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:29,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:59:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:29,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:29,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:59:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,420 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:29,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:29,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:59:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,535 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:59:29,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:59:29,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 16:59:29,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 16:59:29,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,637 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:59:29,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:59:29,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 16:59:29,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:29,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:29,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:59:29,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:29,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:29,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:29,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:29,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:29,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:29,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:59:29,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 16:59:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:29,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:29,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 16:59:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:29,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:29,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:29,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:29,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:29,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:29,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:29,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:29,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:29,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:29,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:29,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253468118] [2020-09-24 16:59:29,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:29,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:59:29,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018876922] [2020-09-24 16:59:29,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:59:29,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:29,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:59:29,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:59:29,733 INFO L87 Difference]: Start difference. First operand 383 states and 430 transitions. Second operand 6 states. [2020-09-24 16:59:30,453 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:31,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:31,808 INFO L93 Difference]: Finished difference Result 632 states and 731 transitions. [2020-09-24 16:59:31,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 16:59:31,809 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 199 [2020-09-24 16:59:31,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:31,816 INFO L225 Difference]: With dead ends: 632 [2020-09-24 16:59:31,816 INFO L226 Difference]: Without dead ends: 440 [2020-09-24 16:59:31,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:59:31,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-09-24 16:59:31,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 372. [2020-09-24 16:59:31,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-09-24 16:59:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 411 transitions. [2020-09-24 16:59:31,879 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 411 transitions. Word has length 199 [2020-09-24 16:59:31,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:31,880 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 411 transitions. [2020-09-24 16:59:31,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:59:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 411 transitions. [2020-09-24 16:59:31,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 16:59:31,884 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:31,884 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:31,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:59:31,884 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:31,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:31,885 INFO L82 PathProgramCache]: Analyzing trace with hash 2085074320, now seen corresponding path program 1 times [2020-09-24 16:59:31,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:31,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498595214] [2020-09-24 16:59:31,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:31,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:32,842 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:32,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 16:59:32,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:32,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 903 [2020-09-24 16:59:32,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:32,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-24 16:59:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:32,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:33,113 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:33,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:33,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 16:59:33,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:33,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:33,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,270 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:33,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:33,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:33,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:33,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:33,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:33,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:33,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:33,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:33,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:33,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:33,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,293 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:33,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:33,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:33,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,307 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:33,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:33,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:33,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:33,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 16:59:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,321 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:33,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:33,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:33,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:59:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:33,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:33,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:33,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,340 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:33,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:33,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:33,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 16:59:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,421 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:59:33,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 16:59:33,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 16:59:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:33,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:33,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:59:33,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 16:59:33,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:59:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 16:59:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:33,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:33,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:33,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 16:59:33,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 16:59:33,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:33,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:33,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:33,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:33,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:33,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:33,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:59:33,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:33,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 16:59:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:33,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:33,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:33,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 16:59:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:33,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:33,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:33,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:33,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:33,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:33,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:33,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:33,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:33,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:33,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:33,692 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:33,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498595214] [2020-09-24 16:59:33,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:33,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 16:59:33,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883036760] [2020-09-24 16:59:33,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 16:59:33,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:33,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 16:59:33,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:59:33,695 INFO L87 Difference]: Start difference. First operand 372 states and 411 transitions. Second operand 11 states. [2020-09-24 16:59:35,520 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:35,834 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:59:36,133 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:59:36,456 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:59:36,772 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 16:59:37,088 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:59:38,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:38,210 INFO L93 Difference]: Finished difference Result 775 states and 935 transitions. [2020-09-24 16:59:38,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 16:59:38,218 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 212 [2020-09-24 16:59:38,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:38,223 INFO L225 Difference]: With dead ends: 775 [2020-09-24 16:59:38,223 INFO L226 Difference]: Without dead ends: 518 [2020-09-24 16:59:38,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 16:59:38,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-09-24 16:59:38,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 380. [2020-09-24 16:59:38,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-24 16:59:38,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 419 transitions. [2020-09-24 16:59:38,287 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 419 transitions. Word has length 212 [2020-09-24 16:59:38,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:38,289 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 419 transitions. [2020-09-24 16:59:38,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 16:59:38,289 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 419 transitions. [2020-09-24 16:59:38,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 16:59:38,293 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:38,293 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:38,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:59:38,293 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:38,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:38,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1959869936, now seen corresponding path program 1 times [2020-09-24 16:59:38,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:38,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418807965] [2020-09-24 16:59:38,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:38,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 16:59:39,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 746 [2020-09-24 16:59:39,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:39,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-24 16:59:39,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:39,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:39,361 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:39,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:39,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 16:59:39,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:39,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:39,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:39,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:39,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:39,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:39,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:39,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:39,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:39,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:39,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:39,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:39,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:39,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:39,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:39,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:39,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:39,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:39,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:39,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:39,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:39,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:39,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:39,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:39,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:39,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:39,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:39,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:39,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:39,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:39,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:39,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:39,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:39,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:39,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 16:59:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:39,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:39,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:39,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:39,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:39,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:59:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,616 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:39,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:59:39,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:39,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:39,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:39,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:39,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,627 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:39,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:39,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:39,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:39,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 16:59:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:59:39,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 16:59:39,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 16:59:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:39,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:39,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:59:39,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 16:59:39,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:59:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:39,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:39,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:39,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 16:59:39,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:59:39,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:59:39,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:59:39,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:39,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:39,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:39,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:39,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:39,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:39,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:59:39,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:39,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:59:39,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:39,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:39,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:40,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:40,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:40,005 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:40,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:40,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:40,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:40,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:40,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:40,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:59:40,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:40,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:40,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 16:59:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:40,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:40,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:40,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:40,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:40,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:40,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:40,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:40,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:40,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 16:59:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:40,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:40,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:40,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:40,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:40,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:40,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:40,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:40,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:40,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:40,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:40,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418807965] [2020-09-24 16:59:40,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:40,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:59:40,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212668858] [2020-09-24 16:59:40,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:59:40,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:40,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:59:40,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:59:40,106 INFO L87 Difference]: Start difference. First operand 380 states and 419 transitions. Second operand 10 states. [2020-09-24 16:59:41,793 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:42,101 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:59:42,455 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:42,843 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:59:43,140 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:59:44,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:59:44,341 INFO L93 Difference]: Finished difference Result 794 states and 968 transitions. [2020-09-24 16:59:44,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:59:44,343 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2020-09-24 16:59:44,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:59:44,347 INFO L225 Difference]: With dead ends: 794 [2020-09-24 16:59:44,347 INFO L226 Difference]: Without dead ends: 529 [2020-09-24 16:59:44,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:59:44,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2020-09-24 16:59:44,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 386. [2020-09-24 16:59:44,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-24 16:59:44,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 425 transitions. [2020-09-24 16:59:44,400 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 425 transitions. Word has length 212 [2020-09-24 16:59:44,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:59:44,401 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 425 transitions. [2020-09-24 16:59:44,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:59:44,401 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 425 transitions. [2020-09-24 16:59:44,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 16:59:44,404 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:59:44,404 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:59:44,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:59:44,405 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:59:44,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:59:44,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1644603219, now seen corresponding path program 1 times [2020-09-24 16:59:44,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:59:44,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321401187] [2020-09-24 16:59:44,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:59:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:44,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:45,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:45,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 16:59:45,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:45,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1419 [2020-09-24 16:59:45,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:45,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:59:45,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 16:59:45,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 16:59:45,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0