/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=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:31:58,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:31:58,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:31:58,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:31:58,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:31:58,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:31:58,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:31:58,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:31:58,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:31:58,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:31:58,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:31:58,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:31:58,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:31:58,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:31:58,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:31:58,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:31:58,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:31:58,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:31:58,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:31:58,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:31:58,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:31:58,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:31:58,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:31:58,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:31:58,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:31:58,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:31:58,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:31:58,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:31:58,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:31:58,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:31:58,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:31:58,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:31:58,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:31:58,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:31:58,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:31:58,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:31:58,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:31:58,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:31:58,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:31:58,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:31:58,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:31:58,797 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 06:31:58,848 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:31:58,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:31:58,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:31:58,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:31:58,852 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:31:58,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:31:58,853 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:31:58,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:31:58,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:31:58,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:31:58,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:31:58,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:31:58,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:31:58,855 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:31:58,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:31:58,855 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:31:58,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:31:58,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:31:58,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:31:58,856 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:31:58,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:31:58,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:31:58,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:31:58,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:31:58,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:31:58,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:31:58,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:31:58,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:31:58,858 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:31:58,858 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:31:59,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:31:59,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:31:59,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:31:59,351 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:31:59,351 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:31:59,352 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-09-25 06:31:59,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbd86e6ee/bf6790de42364a37adac89cda99db3aa/FLAG140a8ddd9 [2020-09-25 06:32:00,085 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:32:00,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-09-25 06:32:00,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbd86e6ee/bf6790de42364a37adac89cda99db3aa/FLAG140a8ddd9 [2020-09-25 06:32:00,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbd86e6ee/bf6790de42364a37adac89cda99db3aa [2020-09-25 06:32:00,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:32:00,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:32:00,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:32:00,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:32:00,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:32:00,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:32:00" (1/1) ... [2020-09-25 06:32:00,377 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 06:32:00, skipping insertion in model container [2020-09-25 06:32:00,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:32:00" (1/1) ... [2020-09-25 06:32:00,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:32:00,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:32:01,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:32:01,079 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:32:01,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:32:01,212 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:32:01,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:32:01 WrapperNode [2020-09-25 06:32:01,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:32:01,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:32:01,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:32:01,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:32:01,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:32:01" (1/1) ... [2020-09-25 06:32:01,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:32:01" (1/1) ... [2020-09-25 06:32:01,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:32:01" (1/1) ... [2020-09-25 06:32:01,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:32:01" (1/1) ... [2020-09-25 06:32:01,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:32:01" (1/1) ... [2020-09-25 06:32:01,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:32:01" (1/1) ... [2020-09-25 06:32:01,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:32:01" (1/1) ... [2020-09-25 06:32:01,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:32:01,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:32:01,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:32:01,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:32:01,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:32:01" (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 06:32:01,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:32:01,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:32:01,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:32:01,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:32:01,397 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:32:01,397 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:32:01,397 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:32:01,397 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:32:01,398 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:32:01,398 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:32:01,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:32:01,398 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:32:01,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:32:01,399 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:32:01,399 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:32:01,399 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:32:01,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:32:01,399 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:32:01,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:32:01,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:32:01,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:32:01,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:32:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:32:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:32:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:32:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:32:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:32:01,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 06:32:01,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 06:32:01,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 06:32:01,402 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:32:01,402 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:32:01,402 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:32:01,402 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:32:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:32:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:32:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:32:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:32:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:32:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:32:01,404 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:32:01,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:32:01,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:32:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:32:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:32:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:32:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:32:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:32:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:32:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:32:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:32:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:32:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:32:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:32:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:32:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:32:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:32:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:32:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 06:32:01,407 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:32:01,407 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:32:01,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:32:01,407 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:32:01,407 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:32:01,407 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:32:01,408 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:32:01,408 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:32:01,408 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:32:01,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:32:01,408 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:32:01,408 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:32:01,409 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:32:01,409 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:32:01,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:32:01,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:32:01,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:32:01,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:32:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:32:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:32:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:32:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:32:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:32:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:32:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:32:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:32:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:32:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 06:32:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 06:32:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:32:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:32:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:32:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:32:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:32:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:32:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:32:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:32:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:32:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:32:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:32:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:32:02,630 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:32:02,630 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:32:02,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:32:02 BoogieIcfgContainer [2020-09-25 06:32:02,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:32:02,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:32:02,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:32:02,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:32:02,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:32:00" (1/3) ... [2020-09-25 06:32:02,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d4234f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:32:02, skipping insertion in model container [2020-09-25 06:32:02,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:32:01" (2/3) ... [2020-09-25 06:32:02,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d4234f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:32:02, skipping insertion in model container [2020-09-25 06:32:02,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:32:02" (3/3) ... [2020-09-25 06:32:02,649 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2020-09-25 06:32:02,661 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:32:02,672 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:32:02,694 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:32:02,725 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:32:02,726 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:32:02,726 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:32:02,726 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:32:02,726 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:32:02,727 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:32:02,727 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:32:02,727 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:32:02,756 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2020-09-25 06:32:02,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 06:32:02,774 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:32:02,776 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:32:02,777 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:32:02,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:32:02,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1833758350, now seen corresponding path program 1 times [2020-09-25 06:32:02,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:32:02,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690145712] [2020-09-25 06:32:02,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:32:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:03,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:03,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:04,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:04,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:06,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:08,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:08,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 06:32:08,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:32:08,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 06:32:08,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:08,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:32:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:08,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:32:08,681 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:32:08,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:08,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:08,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:08,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:32:08,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:08,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 06:32:08,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:08,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:08,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:08,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:08,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:32:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:08,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:08,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:08,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:08,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:08,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:32:08,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:08,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:08,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:32:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:08,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:08,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:08,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:08,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:08,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:32:08,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:08,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:08,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:08,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:08,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:08,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:32:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:08,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:08,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:08,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:08,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:08,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:32:08,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:08,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:08,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:08,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:32:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:08,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:08,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:08,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:08,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:08,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:32:08,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:08,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:08,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:08,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:08,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:08,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:09,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:32:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:09,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:09,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:09,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:32:09,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:09,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:32:09,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:09,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:09,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:09,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:09,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:09,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:32:09,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:32:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:09,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:09,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:09,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:32:09,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:09,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:32:09,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:09,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:32:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:09,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:09,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:09,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:09,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:09,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:09,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:09,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:09,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:09,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:09,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:09,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:09,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:09,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 06:32:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:09,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:09,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:09,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:09,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:09,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:32:09,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:09,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:09,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:09,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:32:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:09,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:09,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 06:32:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:09,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:09,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:09,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:09,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:09,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:09,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:09,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:09,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:32:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:09,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:09,215 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:32:09,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690145712] [2020-09-25 06:32:09,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:32:09,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:32:09,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800841166] [2020-09-25 06:32:09,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:32:09,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:32:09,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:32:09,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:32:09,255 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 4 states. [2020-09-25 06:32:10,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:32:10,895 INFO L93 Difference]: Finished difference Result 553 states and 641 transitions. [2020-09-25 06:32:10,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:32:10,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 06:32:10,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:32:10,934 INFO L225 Difference]: With dead ends: 553 [2020-09-25 06:32:10,934 INFO L226 Difference]: Without dead ends: 342 [2020-09-25 06:32:10,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:32:10,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-25 06:32:11,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 296. [2020-09-25 06:32:11,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-09-25 06:32:11,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 321 transitions. [2020-09-25 06:32:11,169 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 321 transitions. Word has length 160 [2020-09-25 06:32:11,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:32:11,172 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 321 transitions. [2020-09-25 06:32:11,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:32:11,172 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 321 transitions. [2020-09-25 06:32:11,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:32:11,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:32:11,192 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:32:11,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:32:11,193 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:32:11,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:32:11,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1480505140, now seen corresponding path program 1 times [2020-09-25 06:32:11,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:32:11,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539622731] [2020-09-25 06:32:11,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:32:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:11,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:11,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:12,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:14,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:16,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:16,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 06:32:16,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:32:16,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 06:32:16,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:16,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:16,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:16,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 06:32:16,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 06:32:16,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:16,631 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:32:16,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:16,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:16,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:16,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:32:16,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:16,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 06:32:16,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:16,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:16,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:16,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:16,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 06:32:16,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:16,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:32:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:16,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:17,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:17,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:17,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:17,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:32:17,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:17,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:17,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:17,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:17,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:32:17,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:17,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:32:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:17,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:17,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:17,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:17,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:17,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:17,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:17,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:17,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:17,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:17,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:32:17,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:17,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:32:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:17,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:17,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:17,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:17,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:17,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:32:17,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:17,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:17,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:17,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:17,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:32:17,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:32:17,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:32:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:17,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:17,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:17,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:17,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:17,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:17,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:17,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:17,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:17,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:17,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:32:17,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:17,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:32:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:17,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:17,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:17,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:32:17,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:17,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:32:17,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:17,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:32:17,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:17,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:32:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:17,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:17,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:17,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:32:17,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:17,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:32:17,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:17,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:17,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:17,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 06:32:17,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:17,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:17,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:17,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:17,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:17,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:17,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:17,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:17,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:17,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:17,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:17,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:17,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:17,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:32:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:17,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:17,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:17,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:17,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:17,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:17,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:17,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:17,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:17,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:32:17,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:17,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:17,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:32:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:17,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:17,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:17,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:17,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:17,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:17,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:17,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:17,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:17,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:32:17,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:17,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:32:17,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539622731] [2020-09-25 06:32:17,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:32:17,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:32:17,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384350965] [2020-09-25 06:32:17,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:32:17,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:32:17,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:32:17,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:32:17,143 INFO L87 Difference]: Start difference. First operand 296 states and 321 transitions. Second operand 5 states. [2020-09-25 06:32:17,644 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:32:18,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:32:18,531 INFO L93 Difference]: Finished difference Result 523 states and 593 transitions. [2020-09-25 06:32:18,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:32:18,537 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 06:32:18,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:32:18,545 INFO L225 Difference]: With dead ends: 523 [2020-09-25 06:32:18,545 INFO L226 Difference]: Without dead ends: 342 [2020-09-25 06:32:18,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 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 06:32:18,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-25 06:32:18,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 296. [2020-09-25 06:32:18,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-09-25 06:32:18,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 320 transitions. [2020-09-25 06:32:18,608 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 320 transitions. Word has length 161 [2020-09-25 06:32:18,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:32:18,609 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 320 transitions. [2020-09-25 06:32:18,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:32:18,609 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 320 transitions. [2020-09-25 06:32:18,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 06:32:18,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:32:18,612 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:32:18,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:32:18,613 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:32:18,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:32:18,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1356156807, now seen corresponding path program 1 times [2020-09-25 06:32:18,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:32:18,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [99476814] [2020-09-25 06:32:18,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:32:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:18,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:18,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:18,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:19,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:23,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:23,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:23,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:23,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:23,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-25 06:32:23,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:32:23,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 06:32:23,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:23,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:23,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:32:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:32:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:32:24,011 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:32:24,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:32:24,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:24,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 06:32:24,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:24,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:32:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:24,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:24,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:24,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:24,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:32:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:24,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:24,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:24,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:24,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:32:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:24,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:24,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:32:24,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:24,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:32:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:24,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:24,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:24,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:24,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:24,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:32:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:32:24,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:24,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:24,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:32:24,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:32:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:32:24,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:24,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:32:24,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:32:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:24,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:24,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:24,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:32:24,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:24,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:24,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:32:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:32:24,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:32:24,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 06:32:24,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 06:32:24,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:24,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:32:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:32:24,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:24,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:32:24,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:24,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:32:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:24,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:24,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:24,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:24,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 06:32:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:24,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:24,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:24,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:32:24,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:24,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 06:32:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:24,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:24,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:24,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:24,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:24,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:24,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:24,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:24,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:32:24,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:24,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:24,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:32:24,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [99476814] [2020-09-25 06:32:24,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:32:24,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:32:24,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862500137] [2020-09-25 06:32:24,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:32:24,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:32:24,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:32:24,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:32:24,380 INFO L87 Difference]: Start difference. First operand 296 states and 320 transitions. Second operand 6 states. [2020-09-25 06:32:25,234 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:32:26,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:32:26,411 INFO L93 Difference]: Finished difference Result 506 states and 572 transitions. [2020-09-25 06:32:26,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:32:26,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 06:32:26,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:32:26,418 INFO L225 Difference]: With dead ends: 506 [2020-09-25 06:32:26,418 INFO L226 Difference]: Without dead ends: 355 [2020-09-25 06:32:26,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:32:26,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-09-25 06:32:26,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 286. [2020-09-25 06:32:26,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-09-25 06:32:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 307 transitions. [2020-09-25 06:32:26,460 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 307 transitions. Word has length 174 [2020-09-25 06:32:26,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:32:26,461 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 307 transitions. [2020-09-25 06:32:26,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:32:26,461 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 307 transitions. [2020-09-25 06:32:26,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 06:32:26,464 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:32:26,464 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:32:26,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:32:26,465 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:32:26,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:32:26,465 INFO L82 PathProgramCache]: Analyzing trace with hash 861738255, now seen corresponding path program 1 times [2020-09-25 06:32:26,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:32:26,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606190767] [2020-09-25 06:32:26,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:32:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:26,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:26,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:26,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:28,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:28,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:29,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:30,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:31,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:31,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:31,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-09-25 06:32:31,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 06:32:31,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 06:32:31,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:31,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:32:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 06:32:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:32:31,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:31,903 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:32:31,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:31,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:32:32,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:32,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 06:32:32,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:32,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:32,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:32:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:32,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:32,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:32,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:32:32,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:32,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:32,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:32,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:32:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:32,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:32,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:32,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:32,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:32,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:32,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:32,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:32:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:32,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:32,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:32,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:32:32,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:32,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:32,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:32,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:32:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:32,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:32,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:32,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:32,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:32,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:32,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:32,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:32:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:32,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:32:32,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:32,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:32,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:32,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:32,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:32,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:32:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:32,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:32:32,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:32,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:32,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:32,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:32,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:32,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:32,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:32,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:32,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:32,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:32,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:32,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:32,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:32:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:32,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:32:32,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:32:32,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:32:32,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:32:32,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:32:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:32:32,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:32:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:32,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:32:32,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:32,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:32:32,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:32:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:32:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:32:32,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:32:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:32,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:32,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:32,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:32:32,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:32,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:32,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:32:32,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 06:32:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:32,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:32,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:32,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:32,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:32,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:32:32,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:32,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-25 06:32:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:32,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:32,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:32,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:32,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:32,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:32,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:32,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:32,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:32,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:32:32,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:32,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:32,349 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:32:32,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606190767] [2020-09-25 06:32:32,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:32:32,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:32:32,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179144947] [2020-09-25 06:32:32,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:32:32,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:32:32,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:32:32,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:32:32,353 INFO L87 Difference]: Start difference. First operand 286 states and 307 transitions. Second operand 7 states. [2020-09-25 06:32:32,919 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:32:34,822 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:32:35,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:32:35,501 INFO L93 Difference]: Finished difference Result 642 states and 732 transitions. [2020-09-25 06:32:35,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:32:35,502 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-09-25 06:32:35,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:32:35,506 INFO L225 Difference]: With dead ends: 642 [2020-09-25 06:32:35,506 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 06:32:35,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-09-25 06:32:35,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 06:32:35,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 403. [2020-09-25 06:32:35,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2020-09-25 06:32:35,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 436 transitions. [2020-09-25 06:32:35,556 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 436 transitions. Word has length 183 [2020-09-25 06:32:35,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:32:35,556 INFO L479 AbstractCegarLoop]: Abstraction has 403 states and 436 transitions. [2020-09-25 06:32:35,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:32:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 436 transitions. [2020-09-25 06:32:35,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 06:32:35,559 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:32:35,560 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:32:35,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:32:35,560 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:32:35,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:32:35,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1687407280, now seen corresponding path program 1 times [2020-09-25 06:32:35,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:32:35,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384494805] [2020-09-25 06:32:35,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:32:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:35,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:35,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:35,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:36,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:39,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:40,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:40,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 06:32:40,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:32:40,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:32:40,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:40,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:32:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-25 06:32:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:32:40,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:40,926 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:32:40,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:40,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:32:41,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 06:32:41,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:41,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:41,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:41,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:32:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:41,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:41,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:41,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:41,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:41,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:32:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:41,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:41,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:41,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:41,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:41,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:32:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:41,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:41,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:41,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:41,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:41,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:32:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:41,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:32:41,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:41,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:41,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:32:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:32:41,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:32:41,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:41,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:41,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:41,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:32:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:32:41,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:32:41,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:41,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:41,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:41,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:32:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:41,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:41,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:41,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:41,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:41,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:32:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:32:41,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:32:41,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 06:32:41,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:32:41,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:41,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:32:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:32:41,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:32:41,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:32:41,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:41,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:32:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:32:41,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:32:41,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:32:41,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:41,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:32:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:32:41,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:41,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:32:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:32:41,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:32:41,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:32:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:32:41,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:32:41,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:32:41,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:41,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 06:32:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:41,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:32:41,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:32:41,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:32:41,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:41,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 06:32:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:41,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:32:41,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:32:41,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:32:41,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:32:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:32:41,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:32:41,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:32:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:32:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:32:41,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:32:41,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:32:41,384 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:32:41,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384494805] [2020-09-25 06:32:41,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:32:41,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 06:32:41,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635330437] [2020-09-25 06:32:41,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:32:41,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:32:41,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:32:41,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:32:41,386 INFO L87 Difference]: Start difference. First operand 403 states and 436 transitions. Second operand 10 states. [2020-09-25 06:32:41,996 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:32:43,197 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 06:32:43,786 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 06:32:45,116 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:32:45,458 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 06:32:45,830 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:32:46,373 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:32:46,716 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:32:47,043 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:32:47,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:32:47,834 INFO L93 Difference]: Finished difference Result 758 states and 856 transitions. [2020-09-25 06:32:47,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 06:32:47,836 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2020-09-25 06:32:47,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:32:47,841 INFO L225 Difference]: With dead ends: 758 [2020-09-25 06:32:47,841 INFO L226 Difference]: Without dead ends: 470 [2020-09-25 06:32:47,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-09-25 06:32:47,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-09-25 06:32:47,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 402. [2020-09-25 06:32:47,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 06:32:47,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 433 transitions. [2020-09-25 06:32:47,892 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 433 transitions. Word has length 207 [2020-09-25 06:32:47,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:32:47,893 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 433 transitions. [2020-09-25 06:32:47,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:32:47,894 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 433 transitions. [2020-09-25 06:32:47,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 06:32:47,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:32:47,898 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:32:47,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:32:47,898 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:32:47,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:32:47,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1406999212, now seen corresponding path program 1 times [2020-09-25 06:32:47,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:32:47,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739721917] [2020-09-25 06:32:47,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:32:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:32:47,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking...