/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_spec1_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:08:44,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:08:44,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:08:44,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:08:44,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:08:44,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:08:44,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:08:44,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:08:44,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:08:44,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:08:44,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:08:44,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:08:44,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:08:44,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:08:44,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:08:44,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:08:44,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:08:44,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:08:44,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:08:44,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:08:44,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:08:44,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:08:44,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:08:44,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:08:44,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:08:44,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:08:44,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:08:44,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:08:44,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:08:44,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:08:44,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:08:44,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:08:44,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:08:44,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:08:44,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:08:44,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:08:44,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:08:44,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:08:44,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:08:44,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:08:44,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:08:44,815 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 05:08:44,862 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:08:44,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:08:44,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:08:44,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:08:44,865 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:08:44,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:08:44,866 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:08:44,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:08:44,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:08:44,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:08:44,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:08:44,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:08:44,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:08:44,869 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:08:44,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:08:44,869 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:08:44,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:08:44,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:08:44,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:08:44,870 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:08:44,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:08:44,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:08:44,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:08:44,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:08:44,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:08:44,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:08:44,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:08:44,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:08:44,872 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:08:44,872 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:08:45,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:08:45,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:08:45,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:08:45,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:08:45,363 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:08:45,364 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-25 05:08:45,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72cc624be/8d69da7250c84b5c814b2deeb649a201/FLAGebdcd17ec [2020-09-25 05:08:46,049 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:08:46,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-25 05:08:46,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72cc624be/8d69da7250c84b5c814b2deeb649a201/FLAGebdcd17ec [2020-09-25 05:08:46,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72cc624be/8d69da7250c84b5c814b2deeb649a201 [2020-09-25 05:08:46,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:08:46,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:08:46,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:08:46,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:08:46,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:08:46,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:08:46" (1/1) ... [2020-09-25 05:08:46,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:46, skipping insertion in model container [2020-09-25 05:08:46,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:08:46" (1/1) ... [2020-09-25 05:08:46,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:08:46,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:08:46,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:08:47,045 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:08:47,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:08:47,212 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:08:47,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:47 WrapperNode [2020-09-25 05:08:47,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:08:47,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:08:47,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:08:47,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:08:47,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:47" (1/1) ... [2020-09-25 05:08:47,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:47" (1/1) ... [2020-09-25 05:08:47,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:47" (1/1) ... [2020-09-25 05:08:47,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:47" (1/1) ... [2020-09-25 05:08:47,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:47" (1/1) ... [2020-09-25 05:08:47,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:47" (1/1) ... [2020-09-25 05:08:47,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:47" (1/1) ... [2020-09-25 05:08:47,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:08:47,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:08:47,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:08:47,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:08:47,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:47" (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 05:08:47,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:08:47,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:08:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:08:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:08:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:08:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:08:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:08:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:08:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:08:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:08:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:08:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:08:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:08:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:08:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:08:47,461 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:08:47,461 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:08:47,462 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:08:47,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:08:47,462 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:08:47,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:08:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:08:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:08:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:08:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:08:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:08:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:08:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:08:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:08:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:08:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:08:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:08:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:08:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 05:08:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:08:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:08:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:08:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:08:47,467 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:08:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:08:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:08:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:08:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:08:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:08:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:08:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:08:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:08:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:08:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:08:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:08:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:08:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:08:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:08:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:08:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 05:08:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:08:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:08:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:08:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:08:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:08:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:08:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:08:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:08:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:08:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:08:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:08:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:08:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:08:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:08:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:08:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:08:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:08:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:08:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:08:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:08:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:08:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:08:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:08:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:08:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:08:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:08:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:08:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:08:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:08:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:08:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:08:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:08:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:08:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:08:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:08:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:08:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:08:48,680 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:08:48,680 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:08:48,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:08:48 BoogieIcfgContainer [2020-09-25 05:08:48,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:08:48,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:08:48,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:08:48,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:08:48,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:08:46" (1/3) ... [2020-09-25 05:08:48,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6069ee96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:08:48, skipping insertion in model container [2020-09-25 05:08:48,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:47" (2/3) ... [2020-09-25 05:08:48,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6069ee96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:08:48, skipping insertion in model container [2020-09-25 05:08:48,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:08:48" (3/3) ... [2020-09-25 05:08:48,699 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-09-25 05:08:48,713 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:08:48,726 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:08:48,752 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:08:48,792 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:08:48,792 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:08:48,792 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:08:48,792 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:08:48,792 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:08:48,793 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:08:48,793 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:08:48,793 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:08:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-25 05:08:48,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 05:08:48,840 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:08:48,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:08:48,842 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:08:48,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:08:48,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1033241294, now seen corresponding path program 1 times [2020-09-25 05:08:48,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:08:48,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012838049] [2020-09-25 05:08:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:08:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:49,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:49,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:50,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:51,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:53,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:54,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:54,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 05:08:54,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:08:54,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-09-25 05:08:54,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:54,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:08:54,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:54,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 05:08:54,926 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:08:54,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:08:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:54,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:55,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:55,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:08:55,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:55,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 05:08:55,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:55,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:55,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:08:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:55,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:08:55,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:08:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:55,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:55,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:55,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:08:55,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:55,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:08:55,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:55,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:55,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:55,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:08:55,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:55,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:08:55,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:08:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:55,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:55,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:55,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:08:55,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:55,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:08:55,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:55,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:55,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:55,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:08:55,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:55,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:08:55,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:08:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:55,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:55,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:55,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:08:55,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:55,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:08:55,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:55,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:55,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:55,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:08:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:55,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:08:55,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:08:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:55,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:55,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:55,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:08:55,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:55,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:08:55,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:55,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:55,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:08:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:55,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:08:55,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 05:08:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:55,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:55,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:55,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:08:55,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:55,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:08:55,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:55,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:55,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:55,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:08:55,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:55,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:08:55,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:08:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:55,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:55,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:55,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:08:55,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:55,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:08:55,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:55,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:55,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:55,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:08:55,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:55,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:08:55,299 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 05:08:55,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012838049] [2020-09-25 05:08:55,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:08:55,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:08:55,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617965222] [2020-09-25 05:08:55,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:08:55,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:08:55,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:08:55,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:08:55,346 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 3 states. [2020-09-25 05:08:56,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:08:56,992 INFO L93 Difference]: Finished difference Result 448 states and 534 transitions. [2020-09-25 05:08:56,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:08:56,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 05:08:56,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:08:57,015 INFO L225 Difference]: With dead ends: 448 [2020-09-25 05:08:57,016 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 05:08:57,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:08:57,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 05:08:57,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-09-25 05:08:57,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 05:08:57,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-25 05:08:57,174 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 142 [2020-09-25 05:08:57,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:08:57,175 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-25 05:08:57,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:08:57,175 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-25 05:08:57,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 05:08:57,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:08:57,179 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] [2020-09-25 05:08:57,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:08:57,180 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:08:57,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:08:57,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1951375081, now seen corresponding path program 1 times [2020-09-25 05:08:57,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:08:57,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1940278294] [2020-09-25 05:08:57,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:08:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:57,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:57,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:58,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:59,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:00,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:02,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:02,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 05:09:02,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:09:02,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 05:09:02,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:02,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:09:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:09:02,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:02,593 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:02,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:02,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:02,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:02,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:02,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:02,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 05:09:02,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:02,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:02,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:02,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:02,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:02,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:02,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:02,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:02,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:02,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:02,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:02,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:02,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:02,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:02,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:02,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:02,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:02,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:02,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:02,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:02,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:02,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:02,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:02,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:09:02,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:02,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:02,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:02,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:02,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:02,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:09:02,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:02,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:02,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:02,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:02,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:02,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:02,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:02,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:02,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:02,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:02,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:02,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:02,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:02,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:02,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:02,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:02,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:02,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:02,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:09:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:02,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:02,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:02,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:02,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:02,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:02,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:02,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:02,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:02,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:02,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:02,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:02,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:09:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:02,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:02,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:02,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:02,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:02,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:02,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:02,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:02,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:02,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:02,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:02,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:02,849 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 05:09:02,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1940278294] [2020-09-25 05:09:02,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:02,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:09:02,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447823760] [2020-09-25 05:09:02,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:09:02,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:02,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:09:02,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:09:02,855 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 4 states. [2020-09-25 05:09:03,506 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:09:04,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:04,323 INFO L93 Difference]: Finished difference Result 352 states and 395 transitions. [2020-09-25 05:09:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:09:04,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 05:09:04,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:04,328 INFO L225 Difference]: With dead ends: 352 [2020-09-25 05:09:04,328 INFO L226 Difference]: Without dead ends: 265 [2020-09-25 05:09:04,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:09:04,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-25 05:09:04,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 230. [2020-09-25 05:09:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 05:09:04,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-25 05:09:04,398 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 143 [2020-09-25 05:09:04,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:04,399 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-25 05:09:04,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:09:04,399 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-25 05:09:04,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 05:09:04,401 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:04,402 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] [2020-09-25 05:09:04,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:09:04,402 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:04,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:04,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1408786884, now seen corresponding path program 1 times [2020-09-25 05:09:04,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:04,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257143997] [2020-09-25 05:09:04,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:04,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:04,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:05,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:05,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:09,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:09,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 05:09:09,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:09:09,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 05:09:09,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:09,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 05:09:09,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:09:09,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:09,750 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:09,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:09,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:09,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:09,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:09,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:09,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 05:09:09,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:09,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:09,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:09,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:09,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:09,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:09,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:09,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:09,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:09,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:09,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:09,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:09,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:09,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:09,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:09,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:09,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:09,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:09,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:09,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:09,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:09,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:09,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:09,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:09,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:09,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:09,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:09,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:09,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:09,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:09,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:09,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:09,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:09,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:09,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:09,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:09,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:09,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:09,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:09,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:09,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:09,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:09,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:09,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:09,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:09,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:09,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:09,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:09,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:09,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:09:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:09,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:09,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:09,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:09:09,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:09,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:09,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:09,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:09,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:09,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:09,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:09:09,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:09,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 05:09:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:09,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:09,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:09,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:09,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:09,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:09,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:09,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:09,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:09,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:09,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:09,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:09,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 05:09:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:09,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:09,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:09,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:09,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:09,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:09,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:09,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:09,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:09,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:09,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:10,043 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 05:09:10,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257143997] [2020-09-25 05:09:10,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:10,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:09:10,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061566267] [2020-09-25 05:09:10,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:09:10,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:10,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:09:10,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:09:10,048 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 5 states. [2020-09-25 05:09:10,563 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:09:12,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:12,261 INFO L93 Difference]: Finished difference Result 536 states and 619 transitions. [2020-09-25 05:09:12,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:09:12,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 05:09:12,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:12,267 INFO L225 Difference]: With dead ends: 536 [2020-09-25 05:09:12,267 INFO L226 Difference]: Without dead ends: 416 [2020-09-25 05:09:12,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:09:12,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-25 05:09:12,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 334. [2020-09-25 05:09:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-25 05:09:12,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 365 transitions. [2020-09-25 05:09:12,363 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 365 transitions. Word has length 156 [2020-09-25 05:09:12,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:12,364 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 365 transitions. [2020-09-25 05:09:12,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:09:12,365 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 365 transitions. [2020-09-25 05:09:12,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 05:09:12,369 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:12,370 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] [2020-09-25 05:09:12,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:09:12,371 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:12,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:12,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1641209859, now seen corresponding path program 1 times [2020-09-25 05:09:12,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:12,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362009087] [2020-09-25 05:09:12,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:12,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:13,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:13,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:16,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:17,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:17,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 05:09:17,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:09:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 05:09:17,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:17,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:09:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 05:09:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:09:17,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:17,846 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:17,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:17,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:17,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:17,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:17,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:17,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 05:09:17,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:17,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:17,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:17,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:17,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:17,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:18,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:18,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:18,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:18,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:18,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:18,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:18,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:18,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:18,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:18,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:18,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:18,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:18,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:18,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 05:09:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:09:18,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:09:18,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:09:18,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:09:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:18,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:09:18,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:18,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:09:18,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:09:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:18,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:09:18,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:09:18,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:09:18,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,213 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 05:09:18,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362009087] [2020-09-25 05:09:18,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:18,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:09:18,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440966974] [2020-09-25 05:09:18,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:09:18,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:18,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:09:18,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:09:18,217 INFO L87 Difference]: Start difference. First operand 334 states and 365 transitions. Second operand 9 states. [2020-09-25 05:09:18,990 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:09:20,349 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:09:20,696 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:09:21,057 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:09:21,357 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:09:21,677 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:09:22,286 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:09:22,588 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:09:22,892 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:09:23,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:23,622 INFO L93 Difference]: Finished difference Result 789 states and 932 transitions. [2020-09-25 05:09:23,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:09:23,623 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 05:09:23,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:23,636 INFO L225 Difference]: With dead ends: 789 [2020-09-25 05:09:23,636 INFO L226 Difference]: Without dead ends: 565 [2020-09-25 05:09:23,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:09:23,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-09-25 05:09:23,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 496. [2020-09-25 05:09:23,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-09-25 05:09:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 560 transitions. [2020-09-25 05:09:23,755 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 560 transitions. Word has length 161 [2020-09-25 05:09:23,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:23,756 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 560 transitions. [2020-09-25 05:09:23,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:09:23,756 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 560 transitions. [2020-09-25 05:09:23,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 05:09:23,759 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:23,759 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] [2020-09-25 05:09:23,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:09:23,760 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:23,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:23,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1044492281, now seen corresponding path program 1 times [2020-09-25 05:09:23,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:23,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266294466] [2020-09-25 05:09:23,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:23,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:24,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:28,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:28,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 05:09:28,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:09:28,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4941 [2020-09-25 05:09:28,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:28,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:28,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:09:28,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-25 05:09:28,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:09:28,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:29,076 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:29,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:29,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 05:09:29,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:29,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:29,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:29,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:29,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:29,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:29,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:29,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:29,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:29,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:29,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:29,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:29,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:29,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:29,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:29,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:29,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:29,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:29,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:29,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:09:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:09:29,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:29,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:29,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:29,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:29,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:09:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 05:09:29,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 05:09:29,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:09:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 05:09:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:09:29,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:29,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:09:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:09:29,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 05:09:29,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:09:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 05:09:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:29,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:09:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:09:29,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:29,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:29,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:29,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:29,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:09:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:09:29,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:29,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:29,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 05:09:29,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:29,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:29,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 05:09:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:29,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:29,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:29,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:29,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:29,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:29,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 05:09:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:29,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:29,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:29,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:29,478 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 05:09:29,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266294466] [2020-09-25 05:09:29,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:29,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:09:29,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059217758] [2020-09-25 05:09:29,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:09:29,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:29,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:09:29,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:09:29,481 INFO L87 Difference]: Start difference. First operand 496 states and 560 transitions. Second operand 10 states. [2020-09-25 05:09:30,960 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:09:31,295 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191