/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_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:25:25,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:25:25,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:25:25,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:25:25,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:25:25,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:25:25,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:25:25,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:25:25,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:25:25,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:25:25,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:25:25,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:25:25,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:25:25,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:25:25,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:25:25,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:25:25,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:25:25,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:25:25,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:25:25,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:25:25,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:25:25,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:25:25,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:25:25,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:25:25,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:25:25,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:25:25,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:25:25,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:25:25,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:25:25,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:25:25,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:25:25,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:25:25,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:25:25,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:25:25,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:25:25,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:25:25,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:25:25,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:25:25,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:25:25,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:25:25,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:25:25,974 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 21:25:26,016 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:25:26,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:25:26,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:25:26,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:25:26,020 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:25:26,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:25:26,020 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:25:26,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:25:26,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:25:26,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:25:26,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:25:26,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:25:26,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:25:26,023 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:25:26,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:25:26,023 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:25:26,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:25:26,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:25:26,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:25:26,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:25:26,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:25:26,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:25:26,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:25:26,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:25:26,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:25:26,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:25:26,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:25:26,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:25:26,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:25:26,026 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 21:25:26,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:25:26,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:25:26,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:25:26,554 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:25:26,555 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:25:26,557 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-09-24 21:25:26,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c48a28828/5e878e25a75c425e9e4fc7c3cbde2f5d/FLAG3af38e5a8 [2020-09-24 21:25:27,305 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:25:27,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-09-24 21:25:27,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c48a28828/5e878e25a75c425e9e4fc7c3cbde2f5d/FLAG3af38e5a8 [2020-09-24 21:25:27,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c48a28828/5e878e25a75c425e9e4fc7c3cbde2f5d [2020-09-24 21:25:27,612 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:25:27,617 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:25:27,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:25:27,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:25:27,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:25:27,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:25:27" (1/1) ... [2020-09-24 21:25:27,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a615dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:27, skipping insertion in model container [2020-09-24 21:25:27,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:25:27" (1/1) ... [2020-09-24 21:25:27,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:25:27,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:25:28,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:25:28,195 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:25:28,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:25:28,409 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:25:28,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:28 WrapperNode [2020-09-24 21:25:28,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:25:28,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:25:28,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:25:28,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:25:28,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:28" (1/1) ... [2020-09-24 21:25:28,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:28" (1/1) ... [2020-09-24 21:25:28,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:28" (1/1) ... [2020-09-24 21:25:28,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:28" (1/1) ... [2020-09-24 21:25:28,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:28" (1/1) ... [2020-09-24 21:25:28,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:28" (1/1) ... [2020-09-24 21:25:28,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:28" (1/1) ... [2020-09-24 21:25:28,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:25:28,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:25:28,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:25:28,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:25:28,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:28" (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 21:25:28,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:25:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:25:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:25:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:25:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:25:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:25:28,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:25:28,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:25:28,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:25:28,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:25:28,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:25:28,626 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:25:28,627 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:25:28,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:25:28,627 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:25:28,628 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:25:28,628 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:25:28,628 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:25:28,629 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:25:28,629 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:25:28,629 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:25:28,629 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:25:28,630 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:25:28,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:25:28,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:25:28,631 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:25:28,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:25:28,631 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:25:28,631 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:25:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:25:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:25:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:25:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:25:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:25:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:25:28,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:25:28,633 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:25:28,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:25:28,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:25:28,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:25:28,633 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:25:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:25:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:25:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:25:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:25:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:25:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:25:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:25:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:25:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:25:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:25:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:25:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:25:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:25:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:25:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:25:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:25:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:25:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:25:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:25:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:25:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:25:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:25:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:25:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:25:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:25:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:25:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:25:28,639 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:25:28,639 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:25:28,640 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:25:28,640 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:25:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:25:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:25:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:25:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:25:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:25:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:25:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:25:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:25:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:25:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:25:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:25:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:25:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:25:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:25:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:25:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:25:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:25:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:25:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:25:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:25:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:25:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:25:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:25:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:25:29,789 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:25:29,789 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:25:29,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:25:29 BoogieIcfgContainer [2020-09-24 21:25:29,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:25:29,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:25:29,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:25:29,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:25:29,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:25:27" (1/3) ... [2020-09-24 21:25:29,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a07c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:25:29, skipping insertion in model container [2020-09-24 21:25:29,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:25:28" (2/3) ... [2020-09-24 21:25:29,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a07c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:25:29, skipping insertion in model container [2020-09-24 21:25:29,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:25:29" (3/3) ... [2020-09-24 21:25:29,807 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-09-24 21:25:29,819 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:25:29,830 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:25:29,852 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:25:29,884 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:25:29,884 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:25:29,884 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:25:29,884 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:25:29,885 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:25:29,885 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:25:29,885 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:25:29,885 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:25:29,915 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-09-24 21:25:29,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:25:29,934 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:29,935 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 21:25:29,936 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:29,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:29,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1278717342, now seen corresponding path program 1 times [2020-09-24 21:25:29,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:29,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572623286] [2020-09-24 21:25:29,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:30,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:30,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:32,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:33,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:35,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:35,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:25:35,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:25:35,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:25:35,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:25:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:25:35,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 21:25:35,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-24 21:25:35,806 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:35,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:35,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:36,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:36,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:36,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:36,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-09-24 21:25:36,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:25:36,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:36,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:36,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:36,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:36,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:36,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:36,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:25:36,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:36,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:36,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:36,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:36,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:36,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:36,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:36,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:36,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:36,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:36,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:36,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:36,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:36,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:36,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:36,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:36,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:36,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:36,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:25:36,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:36,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:36,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:36,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:36,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:36,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:36,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:36,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:36,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:36,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:36,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:25:36,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:36,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:36,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:36,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:25:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:36,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:36,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:36,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:36,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:36,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:25:36,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:36,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:36,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:36,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:36,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:36,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:25:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:36,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:36,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:36,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:36,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:36,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:36,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:36,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:36,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:36,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:36,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:36,452 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 21:25:36,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572623286] [2020-09-24 21:25:36,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:25:36,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:25:36,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200684160] [2020-09-24 21:25:36,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:25:36,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:36,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:25:36,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:25:36,490 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 4 states. [2020-09-24 21:25:37,142 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:39,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:25:39,768 INFO L93 Difference]: Finished difference Result 718 states and 868 transitions. [2020-09-24 21:25:39,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 21:25:39,771 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-24 21:25:39,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:25:39,794 INFO L225 Difference]: With dead ends: 718 [2020-09-24 21:25:39,794 INFO L226 Difference]: Without dead ends: 504 [2020-09-24 21:25:39,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:25:39,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-09-24 21:25:39,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 428. [2020-09-24 21:25:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-09-24 21:25:39,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 479 transitions. [2020-09-24 21:25:39,969 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 479 transitions. Word has length 142 [2020-09-24 21:25:39,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:25:39,971 INFO L479 AbstractCegarLoop]: Abstraction has 428 states and 479 transitions. [2020-09-24 21:25:39,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:25:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 479 transitions. [2020-09-24 21:25:39,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 21:25:39,977 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:39,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:25:39,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:25:39,978 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:39,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:39,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1313932918, now seen corresponding path program 1 times [2020-09-24 21:25:39,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:39,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674230958] [2020-09-24 21:25:39,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:40,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:40,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:40,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:40,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:45,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:45,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 21:25:45,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:25:45,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-24 21:25:45,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:25:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:25:45,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 21:25:45,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:45,393 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:45,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:45,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:45,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:45,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:45,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:45,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-24 21:25:45,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:25:45,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:45,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:45,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:45,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:45,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:45,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:45,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:45,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:45,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:45,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:45,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:45,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:45,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:45,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:45,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:45,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:45,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:45,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:45,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:45,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:45,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:45,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:45,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:45,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:45,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:45,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:25:45,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:45,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:45,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:45,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:45,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:45,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:45,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:45,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:45,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:45,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:45,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:45,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:45,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:45,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 21:25:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:45,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:45,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:45,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:45,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:25:45,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:45,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:25:45,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:45,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:25:45,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:25:45,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 21:25:45,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:45,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:45,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:45,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:45,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:25:45,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:45,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:25:45,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:45,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:45,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:25:45,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:25:45,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:45,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:25:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:45,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:45,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:45,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:45,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:45,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:25:45,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:45,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:45,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:45,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:45,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:45,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:25:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:45,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:45,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:45,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:45,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:45,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:25:45,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:45,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:45,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:45,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:25:45,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 21:25:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:45,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:45,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:45,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:45,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:45,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:45,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:25:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:25:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:25:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:45,952 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 21:25:45,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674230958] [2020-09-24 21:25:45,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:25:45,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:25:45,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281223376] [2020-09-24 21:25:45,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:25:45,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:45,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:25:45,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:25:45,958 INFO L87 Difference]: Start difference. First operand 428 states and 479 transitions. Second operand 7 states. [2020-09-24 21:25:46,453 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:48,250 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:25:49,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:25:49,701 INFO L93 Difference]: Finished difference Result 1176 states and 1448 transitions. [2020-09-24 21:25:49,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 21:25:49,702 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-09-24 21:25:49,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:25:49,713 INFO L225 Difference]: With dead ends: 1176 [2020-09-24 21:25:49,713 INFO L226 Difference]: Without dead ends: 858 [2020-09-24 21:25:49,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:25:49,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-09-24 21:25:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 713. [2020-09-24 21:25:49,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-09-24 21:25:49,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 809 transitions. [2020-09-24 21:25:49,847 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 809 transitions. Word has length 156 [2020-09-24 21:25:49,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:25:49,848 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 809 transitions. [2020-09-24 21:25:49,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:25:49,848 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 809 transitions. [2020-09-24 21:25:49,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 21:25:49,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:25:49,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:25:49,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:25:49,852 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:25:49,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:25:49,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1340372779, now seen corresponding path program 1 times [2020-09-24 21:25:49,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:25:49,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901632231] [2020-09-24 21:25:49,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:25:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:49,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:51,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:51,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:53,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:54,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:54,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 21:25:54,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:25:54,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 21:25:54,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:54,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:25:54,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:25:54,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 21:25:54,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:25:55,350 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:25:55,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:25:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:55,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:55,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:55,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:25:55,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:55,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-24 21:25:55,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:55,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:55,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:55,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:25:55,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:55,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:25:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:55,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:55,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:55,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:55,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:55,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:55,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:55,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:55,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:55,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:55,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:55,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:25:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:55,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:55,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:55,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:55,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:55,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:55,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:55,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:55,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:55,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:55,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:55,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:25:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:55,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:55,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:55,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:55,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:55,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:25:55,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:55,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:55,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:25:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:55,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:55,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:55,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:25:55,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:55,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:25:55,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:55,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:55,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:55,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:25:55,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:55,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 21:25:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:55,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:55,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:55,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:55,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:25:55,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:25:55,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:25:55,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:55,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:25:55,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:25:55,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:25:55,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:55,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 21:25:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:55,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:55,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:55,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:55,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:55,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:25:55,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:25:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:55,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:55,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 21:25:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:25:55,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:25:55,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:25:55,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:25:55,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:25:55,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:25:55,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:25:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:25:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:25:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:25:55,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:25:55,821 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 21:25:55,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901632231] [2020-09-24 21:25:55,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:25:55,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:25:55,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956061917] [2020-09-24 21:25:55,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:25:55,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:25:55,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:25:55,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:25:55,829 INFO L87 Difference]: Start difference. First operand 713 states and 809 transitions. Second operand 10 states. [2020-09-24 21:25:56,472 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:25:58,034 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:58,374 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:25:58,726 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:25:59,092 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:25:59,353 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:26:00,061 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:00,338 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:26:00,741 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:26:01,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:26:01,914 INFO L93 Difference]: Finished difference Result 868 states and 1036 transitions. [2020-09-24 21:26:01,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:26:01,915 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-24 21:26:01,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:26:01,923 INFO L225 Difference]: With dead ends: 868 [2020-09-24 21:26:01,923 INFO L226 Difference]: Without dead ends: 865 [2020-09-24 21:26:01,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-09-24 21:26:01,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2020-09-24 21:26:02,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 713. [2020-09-24 21:26:02,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-09-24 21:26:02,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 807 transitions. [2020-09-24 21:26:02,034 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 807 transitions. Word has length 161 [2020-09-24 21:26:02,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:26:02,035 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 807 transitions. [2020-09-24 21:26:02,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:26:02,035 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 807 transitions. [2020-09-24 21:26:02,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 21:26:02,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:26:02,040 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] [2020-09-24 21:26:02,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:26:02,040 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:26:02,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:26:02,041 INFO L82 PathProgramCache]: Analyzing trace with hash -297237460, now seen corresponding path program 1 times [2020-09-24 21:26:02,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:26:02,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260297519] [2020-09-24 21:26:02,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:26:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:02,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:02,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:03,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:07,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:07,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-24 21:26:07,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:26:07,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 21:26:07,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:07,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:26:07,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:26:07,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-24 21:26:07,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:07,462 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:26:07,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:26:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:07,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:07,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:07,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:26:07,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:07,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-24 21:26:07,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:26:07,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:07,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:26:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:07,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:07,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:07,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:07,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:07,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:07,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:07,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:07,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:26:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:07,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:07,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:07,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:07,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:07,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:07,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:07,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:07,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:07,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:07,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:07,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:26:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:07,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:07,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:07,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:07,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:07,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:26:07,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:07,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:07,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:07,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:07,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:07,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:26:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:07,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:07,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:07,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:07,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:07,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:07,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:07,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:07,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:07,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:07,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:07,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 21:26:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:07,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:07,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:07,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:07,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:26:07,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:26:07,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-24 21:26:07,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:07,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:07,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:07,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:26:07,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:07,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:07,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:07,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:08,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:08,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:26:08,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:26:08,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-24 21:26:08,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:08,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:08,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:08,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:08,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:08,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:08,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:08,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:08,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:26:08,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:08,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:26:08,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:08,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:08,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:08,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:08,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:08,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:26:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:08,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:08,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:08,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:26:08,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:08,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:26:08,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:08,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:08,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:08,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:08,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:08,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:26:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:08,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:08,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:08,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:26:08,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:08,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:26:08,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:08,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:08,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:08,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:08,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:08,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:26:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:08,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:08,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:08,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:26:08,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:08,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:08,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:08,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:08,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:08,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:08,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:08,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:26:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:08,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:08,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:08,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:08,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:08,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:26:08,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:08,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:08,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:08,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:08,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:08,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:26:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:08,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:08,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:08,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:26:08,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:08,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:08,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:08,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:08,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 21:26:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:08,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:08,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:08,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:08,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:08,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:26:08,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:08,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:26:08,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:08,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:08,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:08,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 21:26:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:08,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:08,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:08,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:08,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:08,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:08,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:08,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:08,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:26:08,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:08,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:08,315 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 21:26:08,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260297519] [2020-09-24 21:26:08,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:26:08,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:26:08,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860347861] [2020-09-24 21:26:08,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:26:08,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:26:08,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:26:08,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:26:08,318 INFO L87 Difference]: Start difference. First operand 713 states and 807 transitions. Second operand 10 states. [2020-09-24 21:26:08,834 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:10,335 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 21:26:10,963 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 21:26:11,304 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:26:11,634 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:26:11,937 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:26:13,202 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:26:13,512 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:26:13,949 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:26:15,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:26:15,477 INFO L93 Difference]: Finished difference Result 1860 states and 2321 transitions. [2020-09-24 21:26:15,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:26:15,487 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 203 [2020-09-24 21:26:15,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:26:15,497 INFO L225 Difference]: With dead ends: 1860 [2020-09-24 21:26:15,498 INFO L226 Difference]: Without dead ends: 1257 [2020-09-24 21:26:15,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 21:26:15,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2020-09-24 21:26:15,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1135. [2020-09-24 21:26:15,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1135 states. [2020-09-24 21:26:15,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1357 transitions. [2020-09-24 21:26:15,675 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1357 transitions. Word has length 203 [2020-09-24 21:26:15,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:26:15,676 INFO L479 AbstractCegarLoop]: Abstraction has 1135 states and 1357 transitions. [2020-09-24 21:26:15,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:26:15,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1357 transitions. [2020-09-24 21:26:15,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-24 21:26:15,684 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:26:15,684 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:26:15,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:26:15,685 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:26:15,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:26:15,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1710613536, now seen corresponding path program 1 times [2020-09-24 21:26:15,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:26:15,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23515831] [2020-09-24 21:26:15,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY