/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=LOWLEXORDER --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_spec4_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:25:12,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:25:12,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:25:12,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:25:12,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:25:12,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:25:12,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:25:12,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:25:12,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:25:12,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:25:12,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:25:12,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:25:12,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:25:12,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:25:12,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:25:12,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:25:12,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:25:12,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:25:12,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:25:12,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:25:12,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:25:12,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:25:12,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:25:12,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:25:12,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:25:12,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:25:12,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:25:12,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:25:12,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:25:12,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:25:12,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:25:12,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:25:12,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:25:12,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:25:12,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:25:12,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:25:12,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:25:12,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:25:12,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:25:12,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:25:12,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:25:12,830 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 21:25:12,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:25:12,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:25:12,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:25:12,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:25:12,883 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:25:12,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:25:12,889 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:25:12,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:25:12,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:25:12,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:25:12,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:25:12,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:25:12,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:25:12,890 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:25:12,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:25:12,891 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:25:12,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:25:12,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:25:12,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:25:12,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:25:12,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:25:12,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:25:12,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:25:12,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:25:12,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:25:12,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:25:12,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:25:12,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:25:12,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:25:12,893 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:25:13,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:25:13,380 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:25:13,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:25:13,386 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:25:13,386 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:25:13,387 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product44.cil.c [2020-09-24 21:25:13,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cef2e6ca/cfd1dfcbdee549419d372540d9545743/FLAG9510ad82c [2020-09-24 21:25:14,077 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:25:14,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product44.cil.c [2020-09-24 21:25:14,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cef2e6ca/cfd1dfcbdee549419d372540d9545743/FLAG9510ad82c [2020-09-24 21:25:14,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cef2e6ca/cfd1dfcbdee549419d372540d9545743 [2020-09-24 21:25:14,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:25:14,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:25:14,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:25:14,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:25:14,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:25:14,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:25:14" (1/1) ... [2020-09-24 21:25:14,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366b14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:14, skipping insertion in model container [2020-09-24 21:25:14,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:25:14" (1/1) ... [2020-09-24 21:25:14,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:25:14,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:25:14,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:25:14,982 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:25:15,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:25:15,117 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:25:15,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:15 WrapperNode [2020-09-24 21:25:15,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:25:15,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:25:15,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:25:15,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:25:15,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:15" (1/1) ... [2020-09-24 21:25:15,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:15" (1/1) ... [2020-09-24 21:25:15,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:15" (1/1) ... [2020-09-24 21:25:15,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:15" (1/1) ... [2020-09-24 21:25:15,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:15" (1/1) ... [2020-09-24 21:25:15,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:15" (1/1) ... [2020-09-24 21:25:15,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:15" (1/1) ... [2020-09-24 21:25:15,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:25:15,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:25:15,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:25:15,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:25:15,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:15" (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 21:25:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:25:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:25:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:25:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:25:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:25:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:25:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:25:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:25:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:25:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:25:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:25:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:25:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:25:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:25:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:25:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:25:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:25:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:25:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:25:15,306 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:25:15,306 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:25:15,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:25:15,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:25:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:25:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:25:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:25:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:25:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:25:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:25:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:25:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:25:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:25:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:25:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:25:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:25:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:25:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:25:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:25:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:25:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:25:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:25:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:25:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:25:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:25:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:25:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:25:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:25:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:25:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:25:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:25:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:25:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:25:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:25:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:25:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:25:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:25:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:25:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:25:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:25:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:25:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:25:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:25:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:25:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:25:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:25:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:25:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:25:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:25:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:25:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:25:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:25:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:25:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:25:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:25:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:25:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:25:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:25:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:25:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:25:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:25:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:25:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:25:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:25:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:25:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:25:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:25:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:25:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:25:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:25:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:25:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:25:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:25:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:25:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:25:16,539 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:25:16,542 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:25:16,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:25:16 BoogieIcfgContainer [2020-09-24 21:25:16,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:25:16,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:25:16,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:25:16,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:25:16,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:25:14" (1/3) ... [2020-09-24 21:25:16,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ce12e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:25:16, skipping insertion in model container [2020-09-24 21:25:16,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:15" (2/3) ... [2020-09-24 21:25:16,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ce12e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:25:16, skipping insertion in model container [2020-09-24 21:25:16,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:25:16" (3/3) ... [2020-09-24 21:25:16,568 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product44.cil.c [2020-09-24 21:25:16,580 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:25:16,594 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:25:16,616 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:25:16,652 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:25:16,653 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:25:16,653 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:25:16,653 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:25:16,653 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:25:16,653 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:25:16,653 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:25:16,653 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:25:16,680 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-09-24 21:25:16,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:25:16,698 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:16,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:25:16,700 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:16,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:16,707 INFO L82 PathProgramCache]: Analyzing trace with hash 944307102, now seen corresponding path program 1 times [2020-09-24 21:25:16,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:16,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138812528] [2020-09-24 21:25:16,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:17,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:17,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:18,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:19,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:21,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:22,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:22,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:25:22,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:25:22,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 21:25:22,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:22,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:25:22,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:25:22,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-24 21:25:22,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:25:22,651 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:22,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:22,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:23,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:23,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:23,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:23,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-24 21:25:23,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:23,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:23,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:23,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:25:23,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:23,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:23,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:23,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:23,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:23,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:23,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:23,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:23,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:23,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:23,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:23,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:23,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:23,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:23,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:23,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:23,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:23,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:23,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:23,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:23,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:23,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:23,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:23,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:23,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:23,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:23,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:23,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:23,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:25:23,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:23,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:23,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:23,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:23,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:23,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:23,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:23,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:23,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:23,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:23,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:25:23,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:23,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:23,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:25:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:23,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:23,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:23,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:23,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:23,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:23,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:23,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:25:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:23,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:23,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:23,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:23,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:23,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:25:23,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:23,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:23,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:23,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:25:23,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138812528] [2020-09-24 21:25:23,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:25:23,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:25:23,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216422344] [2020-09-24 21:25:23,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:25:23,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:23,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:25:23,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:25:23,287 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 8 states. [2020-09-24 21:25:23,905 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:25:25,127 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:25:25,489 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:25:25,899 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:25:26,286 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 21:25:26,617 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:25:27,542 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:27,851 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:28,243 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:25:29,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:25:29,329 INFO L93 Difference]: Finished difference Result 605 states and 747 transitions. [2020-09-24 21:25:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:25:29,334 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 21:25:29,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:25:29,357 INFO L225 Difference]: With dead ends: 605 [2020-09-24 21:25:29,358 INFO L226 Difference]: Without dead ends: 403 [2020-09-24 21:25:29,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:25:29,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-09-24 21:25:29,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 358. [2020-09-24 21:25:29,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-09-24 21:25:29,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 407 transitions. [2020-09-24 21:25:29,509 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 407 transitions. Word has length 142 [2020-09-24 21:25:29,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:25:29,510 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 407 transitions. [2020-09-24 21:25:29,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:25:29,510 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 407 transitions. [2020-09-24 21:25:29,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-24 21:25:29,516 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:29,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:25:29,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:25:29,517 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:29,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:29,518 INFO L82 PathProgramCache]: Analyzing trace with hash 2090273296, now seen corresponding path program 1 times [2020-09-24 21:25:29,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:29,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911850929] [2020-09-24 21:25:29,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:29,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:29,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:31,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:34,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:34,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 21:25:34,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:25:34,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 21:25:34,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:25:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:25:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-24 21:25:34,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:34,926 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:34,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:34,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:35,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-24 21:25:35,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:25:35,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:35,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:35,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:35,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:35,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:35,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:35,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:35,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:35,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:35,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:35,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:35,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:25:35,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:35,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:35,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:35,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:35,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:35,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:35,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:35,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:35,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 21:25:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:25:35,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:35,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-24 21:25:35,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:35,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 21:25:35,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:35,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:25:35,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:25:35,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:35,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:35,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:35,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:25:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:25:35,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:25:35,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:35,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:35,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:25:35,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:25:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:25:35,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:25:35,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:35,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:35,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:35,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:25:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:25:35,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:35,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:35,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:35,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:35,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:25:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:35,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:25:35,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:35,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:35,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:35,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:25:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:25:35,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:35,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:35,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:35,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:35,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 21:25:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:35,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:25:35,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:35,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:35,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 21:25:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:35,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:35,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:35,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:35,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:35,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:35,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:35,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:25:35,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911850929] [2020-09-24 21:25:35,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:25:35,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:25:35,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453264410] [2020-09-24 21:25:35,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:25:35,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:35,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:25:35,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:25:35,662 INFO L87 Difference]: Start difference. First operand 358 states and 407 transitions. Second operand 9 states. [2020-09-24 21:25:36,189 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:37,015 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:37,376 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:25:37,747 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:38,142 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:25:38,471 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:39,106 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:39,434 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:41,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:25:41,383 INFO L93 Difference]: Finished difference Result 917 states and 1147 transitions. [2020-09-24 21:25:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 21:25:41,384 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 198 [2020-09-24 21:25:41,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:25:41,393 INFO L225 Difference]: With dead ends: 917 [2020-09-24 21:25:41,393 INFO L226 Difference]: Without dead ends: 669 [2020-09-24 21:25:41,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 21:25:41,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2020-09-24 21:25:41,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 566. [2020-09-24 21:25:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-09-24 21:25:41,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 659 transitions. [2020-09-24 21:25:41,539 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 659 transitions. Word has length 198 [2020-09-24 21:25:41,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:25:41,540 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 659 transitions. [2020-09-24 21:25:41,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:25:41,541 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 659 transitions. [2020-09-24 21:25:41,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-24 21:25:41,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:41,547 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:25:41,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:25:41,548 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:41,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:41,548 INFO L82 PathProgramCache]: Analyzing trace with hash -311619817, now seen corresponding path program 1 times [2020-09-24 21:25:41,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:41,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [882571412] [2020-09-24 21:25:41,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:41,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:41,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:42,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:42,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:46,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:46,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-24 21:25:46,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:25:46,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 21:25:46,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:46,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:25:46,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:25:46,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-24 21:25:46,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:47,020 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:47,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:47,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-24 21:25:47,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:47,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:25:47,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 21:25:47,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:47,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:47,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:47,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:47,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:47,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:47,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:25:47,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:47,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:47,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:47,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:47,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:25:47,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:47,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:47,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:47,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:47,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:47,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:47,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:47,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:47,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 21:25:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 21:25:47,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:47,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-24 21:25:47,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 21:25:47,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:47,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:25:47,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:47,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 21:25:47,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:47,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:47,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:25:47,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:25:47,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:47,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:47,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:25:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:25:47,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:47,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:47,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:47,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:47,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:25:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:25:47,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:25:47,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:47,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:47,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:25:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:25:47,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:47,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:47,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:47,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:47,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:25:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:47,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:25:47,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:47,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:47,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:47,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:25:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:25:47,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:47,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:47,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:47,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:47,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 21:25:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:25:47,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:25:47,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:47,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:47,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:47,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:47,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:47,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:47,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:47,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:47,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-09-24 21:25:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:25:47,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:25:47,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:25:47,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:47,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 21:25:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:47,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:47,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:47,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:47,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:47,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-24 21:25:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:47,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:47,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:47,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:47,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:47,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:47,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:47,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:47,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:47,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:47,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:48,004 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:25:48,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [882571412] [2020-09-24 21:25:48,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:25:48,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 21:25:48,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064228570] [2020-09-24 21:25:48,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:25:48,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:48,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:25:48,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:25:48,008 INFO L87 Difference]: Start difference. First operand 566 states and 659 transitions. Second operand 7 states. [2020-09-24 21:25:48,456 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:51,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:25:51,302 INFO L93 Difference]: Finished difference Result 1674 states and 2109 transitions. [2020-09-24 21:25:51,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 21:25:51,303 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-09-24 21:25:51,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:25:51,325 INFO L225 Difference]: With dead ends: 1674 [2020-09-24 21:25:51,325 INFO L226 Difference]: Without dead ends: 1218 [2020-09-24 21:25:51,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:25:51,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2020-09-24 21:25:51,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 975. [2020-09-24 21:25:51,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 975 states. [2020-09-24 21:25:51,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1148 transitions. [2020-09-24 21:25:51,522 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1148 transitions. Word has length 227 [2020-09-24 21:25:51,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:25:51,523 INFO L479 AbstractCegarLoop]: Abstraction has 975 states and 1148 transitions. [2020-09-24 21:25:51,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:25:51,524 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1148 transitions. [2020-09-24 21:25:51,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-24 21:25:51,531 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:51,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:25:51,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:25:51,532 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:51,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:51,533 INFO L82 PathProgramCache]: Analyzing trace with hash 212153574, now seen corresponding path program 1 times [2020-09-24 21:25:51,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:51,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337772950] [2020-09-24 21:25:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:51,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:51,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:56,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:56,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-09-24 21:25:56,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:56,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:25:56,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:56,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:25:56,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:25:56,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 21:25:56,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:56,991 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:56,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:57,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-24 21:25:57,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:25:57,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:57,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:57,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:25:57,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:57,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:57,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:57,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:57,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:25:57,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:57,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:57,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:57,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:25:57,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:57,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:57,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:57,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:57,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:57,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:57,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:57,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:57,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:57,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:57,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 21:25:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:25:57,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:25:57,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:57,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:25:57,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:25:57,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:57,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:25:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:25:57,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:25:57,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:25:57,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:57,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 21:25:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:25:57,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:57,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-24 21:25:57,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:57,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 21:25:57,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 21:25:57,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:57,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:25:57,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:25:57,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:57,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:57,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:25:57,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:57,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:25:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:25:57,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:25:57,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:57,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:57,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:25:57,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:57,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:25:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:25:57,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 21:25:57,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:57,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:57,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:25:57,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:57,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:25:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:25:57,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:57,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:57,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:57,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:25:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:57,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:25:57,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:57,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:57,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:25:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:25:57,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:57,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:57,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:57,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:57,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 21:25:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:57,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:57,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:57,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:57,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 21:25:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:57,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:57,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:57,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:57,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:57,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:57,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:57,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:57,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:25:57,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337772950] [2020-09-24 21:25:57,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:25:57,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:25:57,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732306085] [2020-09-24 21:25:57,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:25:57,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:57,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:25:57,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:25:57,918 INFO L87 Difference]: Start difference. First operand 975 states and 1148 transitions. Second operand 11 states. [2020-09-24 21:25:58,477 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:59,214 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:01,182 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:02,769 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188