/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=SMALLEST --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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:08:02,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:08:02,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:08:02,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:08:02,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:08:02,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:08:02,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:08:02,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:08:02,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:08:02,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:08:02,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:08:02,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:08:02,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:08:02,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:08:02,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:08:02,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:08:02,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:08:02,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:08:02,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:08:02,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:08:02,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:08:02,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:08:02,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:08:02,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:08:02,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:08:02,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:08:02,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:08:02,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:08:02,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:08:02,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:08:02,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:08:02,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:08:02,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:08:02,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:08:02,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:08:02,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:08:02,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:08:02,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:08:02,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:08:02,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:08:02,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:08:02,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:08:02,761 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:08:02,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:08:02,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:08:02,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:08:02,764 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:08:02,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:08:02,764 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:08:02,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:08:02,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:08:02,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:08:02,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:08:02,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:08:02,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:08:02,767 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:08:02,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:08:02,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:08:02,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:08:02,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:08:02,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:08:02,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:08:02,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:08:02,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:08:02,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:08:02,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:08:02,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:08:02,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:08:02,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:08:02,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:08:02,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:08:02,770 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:08:03,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:08:03,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:08:03,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:08:03,307 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:08:03,307 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:08:03,308 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-09-24 18:08:03,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f75ef7ccf/b7a5fb67c4cd4a89b2da731fd12cffeb/FLAG67a6755cd [2020-09-24 18:08:03,953 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:08:03,954 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-09-24 18:08:03,970 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f75ef7ccf/b7a5fb67c4cd4a89b2da731fd12cffeb/FLAG67a6755cd [2020-09-24 18:08:04,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f75ef7ccf/b7a5fb67c4cd4a89b2da731fd12cffeb [2020-09-24 18:08:04,247 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:08:04,253 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:08:04,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:08:04,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:08:04,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:08:04,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:08:04" (1/1) ... [2020-09-24 18:08:04,267 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 24.09 06:08:04, skipping insertion in model container [2020-09-24 18:08:04,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:08:04" (1/1) ... [2020-09-24 18:08:04,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:08:04,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:08:04,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:08:04,780 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:08:05,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:08:05,036 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:08:05,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:05 WrapperNode [2020-09-24 18:08:05,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:08:05,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:08:05,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:08:05,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:08:05,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:05" (1/1) ... [2020-09-24 18:08:05,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:05" (1/1) ... [2020-09-24 18:08:05,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:05" (1/1) ... [2020-09-24 18:08:05,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:05" (1/1) ... [2020-09-24 18:08:05,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:05" (1/1) ... [2020-09-24 18:08:05,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:05" (1/1) ... [2020-09-24 18:08:05,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:05" (1/1) ... [2020-09-24 18:08:05,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:08:05,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:08:05,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:08:05,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:08:05,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:08:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:08:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:08:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:08:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:08:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:08:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:08:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:08:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:08:05,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:08:05,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:08:05,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:08:05,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:08:05,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:08:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:08:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:08:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:08:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:08:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:08:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:08:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:08:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:08:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:08:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:08:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:08:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:08:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:08:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:08:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:08:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:08:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:08:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:08:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:08:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:08:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:08:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:08:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:08:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:08:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:08:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:08:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:08:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:08:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:08:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:08:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:08:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:08:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:08:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:08:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:08:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:08:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:08:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:08:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:08:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:08:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:08:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:08:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:08:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:08:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:08:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:08:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:08:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:08:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:08:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:08:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:08:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:08:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:08:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:08:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:08:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:08:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:08:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:08:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:08:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:08:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:08:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:08:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:08:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:08:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:08:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:08:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:08:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:08:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:08:05,238 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:08:05,238 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:08:05,238 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:08:05,238 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:08:05,238 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:08:05,238 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:08:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:08:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:08:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:08:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:08:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:08:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:08:06,398 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:08:06,399 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:08:06,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:08:06 BoogieIcfgContainer [2020-09-24 18:08:06,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:08:06,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:08:06,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:08:06,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:08:06,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:08:04" (1/3) ... [2020-09-24 18:08:06,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b4c238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:08:06, skipping insertion in model container [2020-09-24 18:08:06,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:05" (2/3) ... [2020-09-24 18:08:06,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b4c238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:08:06, skipping insertion in model container [2020-09-24 18:08:06,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:08:06" (3/3) ... [2020-09-24 18:08:06,415 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2020-09-24 18:08:06,428 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:08:06,439 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:08:06,464 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:08:06,504 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:08:06,504 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:08:06,504 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:08:06,504 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:08:06,504 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:08:06,505 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:08:06,505 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:08:06,505 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:08:06,536 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-09-24 18:08:06,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:08:06,556 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:06,558 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:06,558 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:06,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:06,567 INFO L82 PathProgramCache]: Analyzing trace with hash -956249494, now seen corresponding path program 1 times [2020-09-24 18:08:06,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:06,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983202035] [2020-09-24 18:08:06,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:07,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:07,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:08,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:08,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:11,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:11,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:08:11,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:08:11,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-24 18:08:11,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:11,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:11,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:08:11,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:11,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 18:08:12,402 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:12,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:12,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:12,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:12,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:12,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:12,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-24 18:08:12,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:12,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:12,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:12,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:12,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:12,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:12,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:12,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:12,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:12,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:12,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:12,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:12,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:12,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:12,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:12,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:12,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:12,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:12,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:12,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:12,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:12,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:08:12,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:12,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:12,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:12,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:12,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:12,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:12,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:12,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:12,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:12,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:12,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:08:12,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:12,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:12,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:12,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:12,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:12,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:12,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:12,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:12,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:12,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:12,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:12,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:12,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:12,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:12,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:12,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:12,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:12,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:12,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:12,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:12,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:12,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:12,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:12,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:12,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:12,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:08:12,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:08:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:12,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:12,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:12,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:12,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:12,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:08:12,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:08:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:12,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:12,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:12,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:12,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:12,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:12,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:12,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:12,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:12,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:12,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:12,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:12,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:12,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:08:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:12,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:12,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:12,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:12,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:12,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:12,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:12,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:12,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:12,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:12,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:12,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:08:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:12,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:12,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:12,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:12,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:12,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:12,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:12,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:12,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:12,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:12,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:12,851 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:12,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983202035] [2020-09-24 18:08:12,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:12,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:08:12,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831420239] [2020-09-24 18:08:12,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:08:12,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:12,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:08:12,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:08:12,908 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 4 states. [2020-09-24 18:08:14,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:14,332 INFO L93 Difference]: Finished difference Result 458 states and 539 transitions. [2020-09-24 18:08:14,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:08:14,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:08:14,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:14,354 INFO L225 Difference]: With dead ends: 458 [2020-09-24 18:08:14,354 INFO L226 Difference]: Without dead ends: 294 [2020-09-24 18:08:14,360 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 [2020-09-24 18:08:14,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-24 18:08:14,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 249. [2020-09-24 18:08:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-24 18:08:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 270 transitions. [2020-09-24 18:08:14,465 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 270 transitions. Word has length 160 [2020-09-24 18:08:14,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:14,467 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 270 transitions. [2020-09-24 18:08:14,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:08:14,467 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 270 transitions. [2020-09-24 18:08:14,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:08:14,472 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:14,472 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] [2020-09-24 18:08:14,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:08:14,473 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:14,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:14,473 INFO L82 PathProgramCache]: Analyzing trace with hash 475672823, now seen corresponding path program 1 times [2020-09-24 18:08:14,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:14,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509061463] [2020-09-24 18:08:14,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:14,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:14,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:16,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:16,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:19,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:19,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:08:19,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:08:19,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 18:08:19,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:19,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:19,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:08:19,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:08:19,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:19,901 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:19,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:19,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:20,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:20,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:20,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:20,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 18:08:20,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:20,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:20,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:20,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:20,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:20,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:20,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:20,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:20,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:20,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:20,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:20,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:20,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:20,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:20,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:20,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:20,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:20,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:20,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:20,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:20,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:20,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:20,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:20,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:20,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:20,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:20,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:20,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:20,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:20,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:20,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:20,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:20,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:20,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:20,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:20,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:20,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:20,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:20,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:20,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:20,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:20,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:20,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:20,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:20,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:20,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:20,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:20,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:20,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:20,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:20,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:20,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:20,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:20,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:20,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:20,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:20,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:08:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:20,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:20,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:20,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:20,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:20,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:20,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:20,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:20,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:08:20,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:20,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:08:20,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:20,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:20,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:20,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:20,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:20,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:20,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:20,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:20,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:20,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:20,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:20,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:08:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:20,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:20,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:20,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:20,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:20,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:20,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:20,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:20,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:08:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:20,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:20,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:20,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:20,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:20,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:20,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:20,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:20,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:20,168 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:20,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509061463] [2020-09-24 18:08:20,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:20,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:08:20,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410012023] [2020-09-24 18:08:20,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:08:20,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:20,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:08:20,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:08:20,175 INFO L87 Difference]: Start difference. First operand 249 states and 270 transitions. Second operand 5 states. [2020-09-24 18:08:20,923 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:21,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:21,757 INFO L93 Difference]: Finished difference Result 378 states and 425 transitions. [2020-09-24 18:08:21,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:08:21,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:08:21,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:21,762 INFO L225 Difference]: With dead ends: 378 [2020-09-24 18:08:21,762 INFO L226 Difference]: Without dead ends: 283 [2020-09-24 18:08:21,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:08:21,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-24 18:08:21,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 239. [2020-09-24 18:08:21,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-24 18:08:21,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 257 transitions. [2020-09-24 18:08:21,808 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 257 transitions. Word has length 161 [2020-09-24 18:08:21,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:21,809 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 257 transitions. [2020-09-24 18:08:21,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:08:21,809 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 257 transitions. [2020-09-24 18:08:21,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 18:08:21,812 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:21,812 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] [2020-09-24 18:08:21,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:08:21,813 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:21,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:21,813 INFO L82 PathProgramCache]: Analyzing trace with hash 408311169, now seen corresponding path program 1 times [2020-09-24 18:08:21,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:21,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843124040] [2020-09-24 18:08:21,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:21,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:22,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:22,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:25,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:26,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:26,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 18:08:26,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:08:26,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-24 18:08:26,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:26,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:08:26,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 18:08:26,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:08:26,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:27,306 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:27,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:27,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:27,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:27,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:27,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 18:08:27,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:27,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:27,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:27,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:27,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:27,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:27,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:27,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:27,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:27,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:27,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:27,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:27,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:27,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:27,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:27,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:27,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:27,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:27,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:27,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:27,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:27,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:27,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:27,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:27,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:27,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:27,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:27,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:27,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:27,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:27,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:27,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:27,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:27,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:27,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:27,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:27,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:27,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:27,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:27,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:27,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:27,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:27,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:27,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:27,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:27,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:27,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:27,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:27,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:27,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:27,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:08:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:27,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:27,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:27,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:27,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:27,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:27,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:27,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:27,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:27,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:27,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:27,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:08:27,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:27,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:08:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:27,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:27,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:27,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:27,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:27,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:27,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:27,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:27,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:08:27,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:27,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 18:08:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:27,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:27,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:27,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:27,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 18:08:27,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:27,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:08:27,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:27,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:08:27,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:27,717 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 18:08:27,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843124040] [2020-09-24 18:08:27,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:27,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:08:27,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824160177] [2020-09-24 18:08:27,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:08:27,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:27,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:08:27,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:08:27,723 INFO L87 Difference]: Start difference. First operand 239 states and 257 transitions. Second operand 9 states. [2020-09-24 18:08:28,272 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:29,204 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:29,544 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 18:08:30,651 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:30,978 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:08:31,326 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:31,985 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:08:32,304 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:08:32,625 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:08:32,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:32,890 INFO L93 Difference]: Finished difference Result 488 states and 567 transitions. [2020-09-24 18:08:32,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 18:08:32,891 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-24 18:08:32,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:32,896 INFO L225 Difference]: With dead ends: 488 [2020-09-24 18:08:32,896 INFO L226 Difference]: Without dead ends: 364 [2020-09-24 18:08:32,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 18:08:32,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-09-24 18:08:32,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 316. [2020-09-24 18:08:32,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-09-24 18:08:32,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 347 transitions. [2020-09-24 18:08:32,951 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 347 transitions. Word has length 170 [2020-09-24 18:08:32,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:32,952 INFO L479 AbstractCegarLoop]: Abstraction has 316 states and 347 transitions. [2020-09-24 18:08:32,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:08:32,952 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 347 transitions. [2020-09-24 18:08:32,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 18:08:32,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:32,955 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] [2020-09-24 18:08:32,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:08:32,956 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:32,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:32,956 INFO L82 PathProgramCache]: Analyzing trace with hash 73432979, now seen corresponding path program 1 times [2020-09-24 18:08:32,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:32,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583060863] [2020-09-24 18:08:32,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:33,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:33,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:33,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 18:08:33,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:33,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 894 [2020-09-24 18:08:33,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:33,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:08:33,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-24 18:08:33,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:08:33,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:34,243 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:34,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:34,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 18:08:34,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:34,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:34,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:34,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:34,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:34,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:34,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:34,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:34,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:34,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:34,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:34,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:34,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:34,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:34,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:34,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:34,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:34,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:08:34,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:34,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:34,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:34,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:34,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:34,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:08:34,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:34,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:34,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:34,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:34,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:34,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:34,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:08:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:34,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:34,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:34,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:34,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:34,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:34,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:34,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:34,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:34,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:34,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:08:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 18:08:34,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 18:08:34,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:08:34,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:08:34,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:08:34,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:34,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:08:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:08:34,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 18:08:34,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:08:34,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:34,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:08:34,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:34,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:08:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:08:34,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:08:34,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:34,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:34,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:34,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:34,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:08:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:34,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:34,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 18:08:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:34,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:34,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-24 18:08:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:34,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:34,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:34,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:34,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 18:08:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:34,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:34,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:34,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:34,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:34,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:34,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:34,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:34,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:34,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583060863] [2020-09-24 18:08:34,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:34,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:08:34,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758784540] [2020-09-24 18:08:34,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:08:34,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:34,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:08:34,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:08:34,910 INFO L87 Difference]: Start difference. First operand 316 states and 347 transitions. Second operand 10 states. [2020-09-24 18:08:36,587 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:36,830 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:37,173 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 18:08:37,495 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:37,815 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:38,084 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:38,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:38,699 INFO L93 Difference]: Finished difference Result 596 states and 694 transitions. [2020-09-24 18:08:38,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 18:08:38,700 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 203 [2020-09-24 18:08:38,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:38,704 INFO L225 Difference]: With dead ends: 596 [2020-09-24 18:08:38,704 INFO L226 Difference]: Without dead ends: 395 [2020-09-24 18:08:38,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 18:08:38,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-24 18:08:38,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 330. [2020-09-24 18:08:38,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-09-24 18:08:38,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 362 transitions. [2020-09-24 18:08:38,757 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 362 transitions. Word has length 203 [2020-09-24 18:08:38,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:38,758 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 362 transitions. [2020-09-24 18:08:38,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:08:38,759 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 362 transitions. [2020-09-24 18:08:38,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 18:08:38,761 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:38,762 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] [2020-09-24 18:08:38,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:08:38,762 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:38,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:38,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1066360845, now seen corresponding path program 1 times [2020-09-24 18:08:38,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:38,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740198094] [2020-09-24 18:08:38,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:38,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 18:08:39,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 752 [2020-09-24 18:08:39,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:08:39,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-24 18:08:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:08:39,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:39,894 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:39,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:40,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 18:08:40,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:40,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:40,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:40,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:40,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:40,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:08:40,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:40,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:08:40,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:40,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:40,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:08:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:40,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:40,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:40,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:40,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:08:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 18:08:40,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 18:08:40,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:08:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:08:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:08:40,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:08:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:08:40,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 18:08:40,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:08:40,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 18:08:40,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:08:40,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:08:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:08:40,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:08:40,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:08:40,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:08:40,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:08:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:40,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:40,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 18:08:40,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-24 18:08:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:40,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:40,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 18:08:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:40,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:40,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:40,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,349 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:40,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740198094] [2020-09-24 18:08:40,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:40,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:08:40,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865373712] [2020-09-24 18:08:40,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:08:40,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:40,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:08:40,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:08:40,352 INFO L87 Difference]: Start difference. First operand 330 states and 362 transitions. Second operand 9 states. [2020-09-24 18:08:41,743 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:42,060 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:42,421 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:42,761 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:43,081 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:43,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:43,697 INFO L93 Difference]: Finished difference Result 621 states and 728 transitions. [2020-09-24 18:08:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:08:43,697 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 203 [2020-09-24 18:08:43,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:43,701 INFO L225 Difference]: With dead ends: 621 [2020-09-24 18:08:43,701 INFO L226 Difference]: Without dead ends: 406 [2020-09-24 18:08:43,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 18:08:43,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-09-24 18:08:43,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 336. [2020-09-24 18:08:43,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-24 18:08:43,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 368 transitions. [2020-09-24 18:08:43,749 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 368 transitions. Word has length 203 [2020-09-24 18:08:43,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:43,750 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 368 transitions. [2020-09-24 18:08:43,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:08:43,750 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 368 transitions. [2020-09-24 18:08:43,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 18:08:43,753 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:43,753 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] [2020-09-24 18:08:43,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:08:43,754 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:43,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:43,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1097483760, now seen corresponding path program 1 times [2020-09-24 18:08:43,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:43,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [650889333] [2020-09-24 18:08:43,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:43,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 18:08:45,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1323 [2020-09-24 18:08:45,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 18:08:45,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 18:08:45,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 18:08:45,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:45,483 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:45,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:45,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-24 18:08:45,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:45,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:45,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 18:08:45,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:45,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:45,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:45,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:45,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:45,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:08:45,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:45,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:45,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:45,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:45,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:08:45,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:45,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:45,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:08:45,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:45,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:45,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:08:45,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:45,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:45,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:45,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:45,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:45,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:08:45,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:45,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:45,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:45,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:08:45,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:45,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:08:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:45,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 18:08:45,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:45,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:08:45,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:08:45,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:45,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:45,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:45,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:45,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:45,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:45,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:08:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 18:08:45,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 18:08:45,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 18:08:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 18:08:45,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:45,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:08:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:08:45,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 18:08:45,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:45,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:08:45,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:45,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:08:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:08:45,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:45,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:08:45,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:45,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:08:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:45,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:08:45,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:45,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:45,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:08:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:45,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-24 18:08:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:45,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:45,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:45,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:45,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:45,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 18:08:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:45,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:45,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:45,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:45,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:45,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:45,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:45,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:45,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:45,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:46,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:46,070 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:46,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [650889333] [2020-09-24 18:08:46,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:46,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:08:46,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896052096] [2020-09-24 18:08:46,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:08:46,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:46,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:08:46,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:08:46,074 INFO L87 Difference]: Start difference. First operand 336 states and 368 transitions. Second operand 7 states. [2020-09-24 18:08:46,585 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:47,812 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:49,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:49,941 INFO L93 Difference]: Finished difference Result 1010 states and 1233 transitions. [2020-09-24 18:08:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 18:08:49,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-09-24 18:08:49,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:49,949 INFO L225 Difference]: With dead ends: 1010 [2020-09-24 18:08:49,949 INFO L226 Difference]: Without dead ends: 789 [2020-09-24 18:08:49,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-24 18:08:49,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2020-09-24 18:08:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 669. [2020-09-24 18:08:50,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-09-24 18:08:50,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 770 transitions. [2020-09-24 18:08:50,045 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 770 transitions. Word has length 203 [2020-09-24 18:08:50,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:50,045 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 770 transitions. [2020-09-24 18:08:50,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:08:50,046 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 770 transitions. [2020-09-24 18:08:50,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 18:08:50,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:50,049 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] [2020-09-24 18:08:50,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:08:50,049 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:50,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:50,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1214904163, now seen corresponding path program 1 times [2020-09-24 18:08:50,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:50,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963399623] [2020-09-24 18:08:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:50,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:50,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking...