/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:57:29,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:57:29,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:57:29,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:57:29,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:57:29,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:57:29,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:57:29,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:57:29,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:57:29,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:57:29,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:57:29,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:57:29,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:57:29,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:57:29,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:57:29,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:57:29,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:57:29,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:57:29,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:57:29,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:57:29,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:57:29,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:57:29,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:57:29,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:57:29,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:57:29,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:57:29,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:57:29,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:57:29,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:57:29,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:57:29,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:57:29,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:57:29,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:57:29,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:57:29,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:57:29,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:57:29,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:57:29,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:57:29,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:57:29,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:57:29,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:57:29,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:57:29,743 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:57:29,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:57:29,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:57:29,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:57:29,745 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:57:29,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:57:29,745 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:57:29,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:57:29,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:57:29,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:57:29,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:57:29,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:57:29,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:57:29,746 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:57:29,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:57:29,747 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:57:29,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:57:29,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:57:29,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:57:29,748 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:57:29,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:57:29,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:57:29,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:57:29,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:57:29,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:57:29,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:57:29,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:57:29,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:57:29,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:57:29,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 02:57:30,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:57:30,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:57:30,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:57:30,197 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:57:30,197 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:57:30,198 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2020-09-25 02:57:30,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1a0e0038/33ec8a5d501040e8aa7b08bed575d22b/FLAG64db13be8 [2020-09-25 02:57:30,923 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:57:30,924 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2020-09-25 02:57:30,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1a0e0038/33ec8a5d501040e8aa7b08bed575d22b/FLAG64db13be8 [2020-09-25 02:57:31,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1a0e0038/33ec8a5d501040e8aa7b08bed575d22b [2020-09-25 02:57:31,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:57:31,205 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:57:31,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:57:31,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:57:31,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:57:31,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:57:31" (1/1) ... [2020-09-25 02:57:31,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:31, skipping insertion in model container [2020-09-25 02:57:31,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:57:31" (1/1) ... [2020-09-25 02:57:31,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:57:31,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:57:31,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:57:31,832 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:57:31,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:57:31,992 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:57:31,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:31 WrapperNode [2020-09-25 02:57:31,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:57:31,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:57:31,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:57:31,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:57:32,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:31" (1/1) ... [2020-09-25 02:57:32,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:31" (1/1) ... [2020-09-25 02:57:32,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:31" (1/1) ... [2020-09-25 02:57:32,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:31" (1/1) ... [2020-09-25 02:57:32,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:31" (1/1) ... [2020-09-25 02:57:32,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:31" (1/1) ... [2020-09-25 02:57:32,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:31" (1/1) ... [2020-09-25 02:57:32,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:57:32,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:57:32,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:57:32,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:57:32,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:57:32,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:57:32,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:57:32,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:57:32,204 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:57:32,204 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:57:32,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:57:32,205 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:57:32,206 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:57:32,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:57:32,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:57:32,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:57:32,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:57:32,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:57:32,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:57:32,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:57:32,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:57:32,209 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:57:32,209 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:57:32,210 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:57:32,210 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:57:32,210 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 02:57:32,210 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:57:32,211 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:57:32,211 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:57:32,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:57:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:57:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:57:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:57:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 02:57:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:57:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:57:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:57:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:57:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:57:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:57:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:57:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:57:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 02:57:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:57:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:57:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:57:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:57:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:57:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:57:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:57:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:57:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:57:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:57:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:57:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:57:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:57:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:57:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:57:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:57:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:57:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:57:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:57:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:57:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:57:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:57:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:57:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:57:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:57:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:57:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:57:32,220 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:57:32,220 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:57:32,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:57:32,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:57:32,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:57:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:57:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:57:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:57:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:57:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:57:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:57:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:57:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:57:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:57:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:57:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:57:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:57:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:57:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:57:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:57:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 02:57:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:57:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:57:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:57:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:57:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:57:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:57:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 02:57:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 02:57:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:57:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:57:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:57:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:57:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:57:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:57:33,553 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:57:33,553 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:57:33,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:57:33 BoogieIcfgContainer [2020-09-25 02:57:33,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:57:33,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:57:33,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:57:33,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:57:33,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:57:31" (1/3) ... [2020-09-25 02:57:33,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666de7a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:57:33, skipping insertion in model container [2020-09-25 02:57:33,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:31" (2/3) ... [2020-09-25 02:57:33,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666de7a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:57:33, skipping insertion in model container [2020-09-25 02:57:33,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:57:33" (3/3) ... [2020-09-25 02:57:33,579 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product54.cil.c [2020-09-25 02:57:33,591 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:57:33,605 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:57:33,628 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:57:33,670 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:57:33,671 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:57:33,672 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:57:33,672 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:57:33,672 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:57:33,673 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:57:33,673 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:57:33,674 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:57:33,711 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-09-25 02:57:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 02:57:33,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:33,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:33,731 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:33,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:33,739 INFO L82 PathProgramCache]: Analyzing trace with hash -757984097, now seen corresponding path program 1 times [2020-09-25 02:57:33,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:33,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442001119] [2020-09-25 02:57:33,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:34,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:34,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:35,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:36,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:37,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:38,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:39,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:39,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 02:57:39,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:57:39,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 02:57:39,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:39,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:57:39,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 02:57:39,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 02:57:39,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:57:39,796 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:39,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:39,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:40,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:40,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:40,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:40,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-09-25 02:57:40,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:40,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:40,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:40,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 02:57:40,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:40,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:40,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:40,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:40,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:40,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:40,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:40,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:40,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:40,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:40,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:40,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:40,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:40,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:40,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:40,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:40,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:40,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:40,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:40,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:40,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:40,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:40,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:40,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:40,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:40,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:40,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:40,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:57:40,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:40,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:40,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:40,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:40,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:40,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:40,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:40,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:40,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:40,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:40,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:40,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:40,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:40,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:40,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:40,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:40,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:40,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:40,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:40,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:40,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:40,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:40,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:40,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:40,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:40,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:40,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:40,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:40,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 02:57:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:40,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:40,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:40,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:40,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:40,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:57:40,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:40,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:40,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:40,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:40,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:57:40,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442001119] [2020-09-25 02:57:40,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:57:40,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:57:40,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478896412] [2020-09-25 02:57:40,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:57:40,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:40,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:57:40,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:57:40,483 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 9 states. [2020-09-25 02:57:41,111 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:42,503 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:42,792 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:43,115 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:43,421 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:43,752 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:44,542 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:44,849 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:45,208 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:57:46,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:46,539 INFO L93 Difference]: Finished difference Result 667 states and 818 transitions. [2020-09-25 02:57:46,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 02:57:46,542 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 02:57:46,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:46,564 INFO L225 Difference]: With dead ends: 667 [2020-09-25 02:57:46,564 INFO L226 Difference]: Without dead ends: 446 [2020-09-25 02:57:46,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 02:57:46,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-09-25 02:57:46,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 394. [2020-09-25 02:57:46,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-25 02:57:46,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 442 transitions. [2020-09-25 02:57:46,746 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 442 transitions. Word has length 148 [2020-09-25 02:57:46,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:46,747 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 442 transitions. [2020-09-25 02:57:46,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:57:46,747 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 442 transitions. [2020-09-25 02:57:46,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-25 02:57:46,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:46,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:46,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:57:46,755 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:46,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:46,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1084187837, now seen corresponding path program 1 times [2020-09-25 02:57:46,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:46,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821536347] [2020-09-25 02:57:46,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:46,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:47,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:48,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:51,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:51,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 02:57:51,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:57:51,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 02:57:51,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:57:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 02:57:51,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-25 02:57:51,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:52,230 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:52,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:52,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 02:57:52,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 02:57:52,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:52,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:52,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:52,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:52,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:52,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:52,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:52,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:52,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:52,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:52,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:57:52,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:52,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:52,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:52,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:52,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:52,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:52,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:52,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:52,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:52,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:52,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:57:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:52,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:52,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:52,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:52,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 02:57:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 02:57:52,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:57:52,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 02:57:52,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 02:57:52,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:52,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:57:52,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:57:52,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 02:57:52,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:57:52,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:57:52,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:57:52,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:52,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:57:52,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 02:57:52,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:57:52,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:57:52,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:57:52,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:52,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:57:52,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 02:57:52,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:57:52,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:53,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:57:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:53,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:53,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:53,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:57:53,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:53,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:53,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:53,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:53,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:53,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 02:57:53,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:57:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:53,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:53,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:53,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:53,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:53,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:53,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:53,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:57:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:53,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:53,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 02:57:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:53,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:53,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:53,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:53,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:53,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:57:53,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:53,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:53,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:53,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:53,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 02:57:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:53,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:53,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:53,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:53,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:53,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:53,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:53,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:53,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:53,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:53,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:53,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:57:53,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821536347] [2020-09-25 02:57:53,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:57:53,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-09-25 02:57:53,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67135393] [2020-09-25 02:57:53,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 02:57:53,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:53,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 02:57:53,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-09-25 02:57:53,202 INFO L87 Difference]: Start difference. First operand 394 states and 442 transitions. Second operand 16 states. [2020-09-25 02:57:53,745 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:54,942 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:55,338 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 02:57:55,746 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:56,150 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:56,517 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:57,229 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:57:57,596 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:57,934 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:58,294 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 02:57:58,711 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 02:57:59,081 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:59,436 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:57:59,764 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:00,126 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:01,016 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:01,385 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:58:01,745 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 02:58:02,106 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:02,467 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:02,788 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:05,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:05,387 INFO L93 Difference]: Finished difference Result 1231 states and 1615 transitions. [2020-09-25 02:58:05,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-25 02:58:05,391 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 205 [2020-09-25 02:58:05,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:05,404 INFO L225 Difference]: With dead ends: 1231 [2020-09-25 02:58:05,404 INFO L226 Difference]: Without dead ends: 915 [2020-09-25 02:58:05,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=489, Invalid=1863, Unknown=0, NotChecked=0, Total=2352 [2020-09-25 02:58:05,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2020-09-25 02:58:05,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 650. [2020-09-25 02:58:05,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-09-25 02:58:05,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 741 transitions. [2020-09-25 02:58:05,529 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 741 transitions. Word has length 205 [2020-09-25 02:58:05,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:05,530 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 741 transitions. [2020-09-25 02:58:05,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 02:58:05,530 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 741 transitions. [2020-09-25 02:58:05,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-25 02:58:05,536 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:05,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:05,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:58:05,536 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:05,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:05,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1932439895, now seen corresponding path program 1 times [2020-09-25 02:58:05,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:05,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345215762] [2020-09-25 02:58:05,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:05,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:06,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 02:58:09,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:58:09,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3563 [2020-09-25 02:58:09,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:58:09,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 02:58:09,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 02:58:09,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:09,501 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:58:09,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:58:09,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 02:58:09,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:09,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:09,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:58:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:09,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:09,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:09,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:09,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:58:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:09,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:09,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:09,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:09,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:58:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:09,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:09,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:09,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:09,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:58:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:09,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:09,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:09,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:09,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:58:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:09,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:09,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:09,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:58:09,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:58:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:09,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:58:09,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:09,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:58:09,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 02:58:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:09,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:09,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:09,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:58:09,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 02:58:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:09,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 02:58:09,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:58:09,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 02:58:09,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:09,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:09,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:09,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 02:58:09,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:09,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:10,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:10,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:58:10,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:58:10,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 02:58:10,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 02:58:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:58:10,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:10,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:10,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:10,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:10,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:58:10,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:10,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 02:58:10,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:10,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:10,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 02:58:10,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:58:10,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:10,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:10,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:10,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:10,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:58:10,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:10,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 02:58:10,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:58:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:58:10,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:10,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:58:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:10,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:10,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:10,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:58:10,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:10,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:10,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:10,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:58:10,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:10,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:10,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:10,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:58:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:10,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:10,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:10,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:10,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:10,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:10,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:10,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:58:10,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:10,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:10,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 02:58:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:10,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:10,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:10,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:10,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:10,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:10,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:10,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:10,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:10,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:10,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:10,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-25 02:58:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:10,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:10,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:10,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:10,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:10,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:10,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:10,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:10,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:10,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:10,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:58:10,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345215762] [2020-09-25 02:58:10,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:10,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 02:58:10,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522383651] [2020-09-25 02:58:10,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 02:58:10,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:10,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 02:58:10,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 02:58:10,312 INFO L87 Difference]: Start difference. First operand 650 states and 741 transitions. Second operand 12 states. [2020-09-25 02:58:10,885 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:58:12,083 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:12,456 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:58:12,794 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:13,152 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:58:13,475 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:15,584 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:15,920 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:16,287 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:16,629 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:16,939 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:19,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:19,253 INFO L93 Difference]: Finished difference Result 2314 states and 3131 transitions. [2020-09-25 02:58:19,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-09-25 02:58:19,254 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 210 [2020-09-25 02:58:19,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:19,267 INFO L225 Difference]: With dead ends: 2314 [2020-09-25 02:58:19,268 INFO L226 Difference]: Without dead ends: 1779 [2020-09-25 02:58:19,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=433, Invalid=1207, Unknown=0, NotChecked=0, Total=1640 [2020-09-25 02:58:19,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2020-09-25 02:58:19,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1113. [2020-09-25 02:58:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1113 states. [2020-09-25 02:58:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1289 transitions. [2020-09-25 02:58:19,434 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1289 transitions. Word has length 210 [2020-09-25 02:58:19,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:19,435 INFO L479 AbstractCegarLoop]: Abstraction has 1113 states and 1289 transitions. [2020-09-25 02:58:19,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 02:58:19,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1289 transitions. [2020-09-25 02:58:19,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-25 02:58:19,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:19,442 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:19,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:58:19,443 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:19,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:19,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1168620219, now seen corresponding path program 1 times [2020-09-25 02:58:19,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:19,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525387262] [2020-09-25 02:58:19,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:19,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:20,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking...