/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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_spec2_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:37:55,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:37:55,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:37:55,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:37:55,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:37:55,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:37:55,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:37:55,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:37:55,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:37:55,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:37:55,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:37:55,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:37:55,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:37:55,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:37:55,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:37:55,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:37:55,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:37:55,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:37:55,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:37:56,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:37:56,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:37:56,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:37:56,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:37:56,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:37:56,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:37:56,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:37:56,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:37:56,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:37:56,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:37:56,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:37:56,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:37:56,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:37:56,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:37:56,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:37:56,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:37:56,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:37:56,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:37:56,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:37:56,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:37:56,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:37:56,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:37:56,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:37:56,048 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:37:56,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:37:56,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:37:56,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:37:56,051 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:37:56,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:37:56,051 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:37:56,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:37:56,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:37:56,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:37:56,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:37:56,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:37:56,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:37:56,053 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:37:56,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:37:56,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:37:56,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:37:56,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:37:56,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:37:56,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:37:56,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:37:56,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:37:56,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:37:56,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:37:56,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:37:56,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:37:56,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:37:56,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:37:56,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:37:56,056 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:37:56,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:37:56,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:37:56,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:37:56,613 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:37:56,615 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:37:56,616 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product18.cil.c [2020-09-25 08:37:56,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5015f186d/9fd321847e3b42759f7fd50aeab98f78/FLAG24c17c5d7 [2020-09-25 08:37:57,384 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:37:57,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product18.cil.c [2020-09-25 08:37:57,405 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5015f186d/9fd321847e3b42759f7fd50aeab98f78/FLAG24c17c5d7 [2020-09-25 08:37:57,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5015f186d/9fd321847e3b42759f7fd50aeab98f78 [2020-09-25 08:37:57,595 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:37:57,601 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:37:57,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:37:57,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:37:57,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:37:57,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:37:57" (1/1) ... [2020-09-25 08:37:57,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19da8246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:57, skipping insertion in model container [2020-09-25 08:37:57,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:37:57" (1/1) ... [2020-09-25 08:37:57,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:37:57,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:37:58,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:37:58,236 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:37:58,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:37:58,394 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:37:58,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:58 WrapperNode [2020-09-25 08:37:58,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:37:58,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:37:58,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:37:58,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:37:58,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:58" (1/1) ... [2020-09-25 08:37:58,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:58" (1/1) ... [2020-09-25 08:37:58,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:58" (1/1) ... [2020-09-25 08:37:58,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:58" (1/1) ... [2020-09-25 08:37:58,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:58" (1/1) ... [2020-09-25 08:37:58,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:58" (1/1) ... [2020-09-25 08:37:58,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:58" (1/1) ... [2020-09-25 08:37:58,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:37:58,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:37:58,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:37:58,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:37:58,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:37:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:37:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:37:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:37:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:37:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:37:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:37:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:37:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:37:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:37:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:37:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:37:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 08:37:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:37:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:37:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:37:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:37:58,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:37:58,593 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:37:58,593 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:37:58,593 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:37:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:37:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:37:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:37:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:37:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:37:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:37:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:37:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:37:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:37:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 08:37:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:37:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:37:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:37:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:37:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:37:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:37:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:37:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:37:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:37:58,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:37:58,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:37:58,597 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:37:58,598 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:37:58,598 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:37:58,598 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:37:58,598 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 08:37:58,598 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:37:58,598 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:37:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:37:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:37:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:37:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:37:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:37:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:37:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:37:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 08:37:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:37:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:37:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:37:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:37:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:37:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:37:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:37:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:37:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:37:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:37:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:37:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:37:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:37:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:37:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:37:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:37:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:37:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:37:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:37:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:37:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:37:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:37:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:37:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:37:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:37:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:37:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:37:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:37:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:37:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:37:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:37:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:37:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:37:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:37:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:37:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:37:59,960 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:37:59,960 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:37:59,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:37:59 BoogieIcfgContainer [2020-09-25 08:37:59,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:37:59,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:37:59,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:37:59,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:37:59,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:37:57" (1/3) ... [2020-09-25 08:37:59,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25014061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:37:59, skipping insertion in model container [2020-09-25 08:37:59,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:58" (2/3) ... [2020-09-25 08:37:59,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25014061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:37:59, skipping insertion in model container [2020-09-25 08:37:59,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:37:59" (3/3) ... [2020-09-25 08:37:59,987 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product18.cil.c [2020-09-25 08:38:00,001 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:38:00,016 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:38:00,039 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:38:00,085 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:38:00,085 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:38:00,085 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:38:00,085 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:38:00,085 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:38:00,086 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:38:00,086 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:38:00,086 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:38:00,125 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states. [2020-09-25 08:38:00,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 08:38:00,144 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:00,145 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] [2020-09-25 08:38:00,146 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:00,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:00,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1028134006, now seen corresponding path program 1 times [2020-09-25 08:38:00,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:00,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055364308] [2020-09-25 08:38:00,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:00,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:00,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:02,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:03,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:04,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:05,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:05,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 08:38:05,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:38:05,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 08:38:05,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:05,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:05,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:38:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:05,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 08:38:06,239 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:06,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:06,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 08:38:06,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:06,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:38:06,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:06,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:38:06,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:06,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:06,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:06,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 08:38:06,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:06,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:06,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:06,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:06,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:38:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:06,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:06,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:06,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:38:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:06,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:06,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:06,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:06,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:06,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:06,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:06,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:06,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:06,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:06,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:06,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:06,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:38:06,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055364308] [2020-09-25 08:38:06,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:06,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:38:06,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869999573] [2020-09-25 08:38:06,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:38:06,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:06,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:38:06,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:38:06,774 INFO L87 Difference]: Start difference. First operand 294 states. Second operand 4 states. [2020-09-25 08:38:08,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:08,163 INFO L93 Difference]: Finished difference Result 436 states and 516 transitions. [2020-09-25 08:38:08,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:38:08,166 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 08:38:08,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:08,187 INFO L225 Difference]: With dead ends: 436 [2020-09-25 08:38:08,187 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 08:38:08,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:38:08,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 08:38:08,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 237. [2020-09-25 08:38:08,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-25 08:38:08,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 255 transitions. [2020-09-25 08:38:08,301 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 255 transitions. Word has length 148 [2020-09-25 08:38:08,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:08,302 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 255 transitions. [2020-09-25 08:38:08,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:38:08,302 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 255 transitions. [2020-09-25 08:38:08,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 08:38:08,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:08,310 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] [2020-09-25 08:38:08,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:38:08,311 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:08,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:08,312 INFO L82 PathProgramCache]: Analyzing trace with hash 3142952, now seen corresponding path program 1 times [2020-09-25 08:38:08,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:08,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418330735] [2020-09-25 08:38:08,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:08,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:08,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:10,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:10,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:11,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 08:38:13,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:38:13,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 08:38:13,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:13,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:38:13,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:38:13,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,690 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:13,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:13,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 08:38:13,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:13,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:13,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:13,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:13,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:13,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:13,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:13,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:13,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:38:13,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:13,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:13,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:13,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 08:38:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:13,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:13,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:13,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:38:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:13,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:13,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:13,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:13,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:13,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:13,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:13,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:13,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:13,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:13,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:13,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:13,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:38:13,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418330735] [2020-09-25 08:38:13,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:13,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:38:13,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522504961] [2020-09-25 08:38:13,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:38:13,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:13,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:38:13,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:38:13,988 INFO L87 Difference]: Start difference. First operand 237 states and 255 transitions. Second operand 5 states. [2020-09-25 08:38:14,805 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:38:15,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:15,668 INFO L93 Difference]: Finished difference Result 361 states and 407 transitions. [2020-09-25 08:38:15,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:38:15,669 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 08:38:15,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:15,674 INFO L225 Difference]: With dead ends: 361 [2020-09-25 08:38:15,674 INFO L226 Difference]: Without dead ends: 273 [2020-09-25 08:38:15,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:38:15,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-25 08:38:15,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 227. [2020-09-25 08:38:15,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 08:38:15,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 242 transitions. [2020-09-25 08:38:15,719 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 242 transitions. Word has length 149 [2020-09-25 08:38:15,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:15,720 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 242 transitions. [2020-09-25 08:38:15,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:38:15,721 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 242 transitions. [2020-09-25 08:38:15,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 08:38:15,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:15,724 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] [2020-09-25 08:38:15,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:38:15,724 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:15,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:15,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1025108688, now seen corresponding path program 1 times [2020-09-25 08:38:15,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:15,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175230546] [2020-09-25 08:38:15,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:15,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:16,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:16,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:17,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:18,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:20,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:20,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 08:38:20,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:38:20,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:38:20,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:20,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:20,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:20,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 08:38:20,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:38:20,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:21,097 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:21,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:21,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 08:38:21,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:21,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:21,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:21,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:21,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:21,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:38:21,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:21,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:21,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:21,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:21,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:38:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:21,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:21,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:21,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:21,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:38:21,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:38:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:21,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:21,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:21,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:38:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:21,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:21,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:21,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:21,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:21,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:21,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:21,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:21,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:21,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:21,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:21,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:21,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:38:21,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175230546] [2020-09-25 08:38:21,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:21,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:38:21,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82805629] [2020-09-25 08:38:21,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:38:21,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:21,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:38:21,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:38:21,458 INFO L87 Difference]: Start difference. First operand 227 states and 242 transitions. Second operand 6 states. [2020-09-25 08:38:22,094 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:38:23,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:23,080 INFO L93 Difference]: Finished difference Result 408 states and 472 transitions. [2020-09-25 08:38:23,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:38:23,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 08:38:23,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:23,084 INFO L225 Difference]: With dead ends: 408 [2020-09-25 08:38:23,085 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 08:38:23,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:38:23,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 08:38:23,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 227. [2020-09-25 08:38:23,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 08:38:23,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 241 transitions. [2020-09-25 08:38:23,123 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 241 transitions. Word has length 162 [2020-09-25 08:38:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:23,124 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 241 transitions. [2020-09-25 08:38:23,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:38:23,124 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 241 transitions. [2020-09-25 08:38:23,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 08:38:23,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:23,127 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] [2020-09-25 08:38:23,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:38:23,127 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:23,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:23,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1451512261, now seen corresponding path program 1 times [2020-09-25 08:38:23,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:23,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10797405] [2020-09-25 08:38:23,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:23,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:24,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:24,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:25,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:28,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:28,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 08:38:28,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:38:28,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:38:28,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:28,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:28,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:38:28,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 08:38:28,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 08:38:28,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:28,629 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:28,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:28,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:28,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:28,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:28,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:28,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 08:38:28,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:28,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 08:38:28,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:29,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:29,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:38:29,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:29,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:29,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:38:29,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:29,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:38:29,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:29,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:29,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:29,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:38:29,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:29,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:29,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:38:29,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:38:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:29,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:38:29,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:38:29,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:38:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:38:29,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:38:29,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:29,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:38:29,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:38:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:29,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:29,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:29,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:29,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:38:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:29,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:38:29,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:38:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:29,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 08:38:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:29,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:29,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:29,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:29,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:29,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:29,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:29,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:29,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:29,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:29,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:29,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:29,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:38:29,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10797405] [2020-09-25 08:38:29,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:29,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 08:38:29,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028120582] [2020-09-25 08:38:29,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 08:38:29,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:29,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 08:38:29,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:38:29,281 INFO L87 Difference]: Start difference. First operand 227 states and 241 transitions. Second operand 11 states. [2020-09-25 08:38:30,060 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:38:31,574 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:38:31,914 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 08:38:32,277 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:38:32,629 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:38:32,978 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 08:38:33,311 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:38:33,636 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:38:34,122 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:38:35,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:35,699 INFO L93 Difference]: Finished difference Result 640 states and 797 transitions. [2020-09-25 08:38:35,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 08:38:35,700 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 170 [2020-09-25 08:38:35,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:35,706 INFO L225 Difference]: With dead ends: 640 [2020-09-25 08:38:35,707 INFO L226 Difference]: Without dead ends: 528 [2020-09-25 08:38:35,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 08:38:35,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-09-25 08:38:35,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 321. [2020-09-25 08:38:35,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-09-25 08:38:35,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 347 transitions. [2020-09-25 08:38:35,772 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 347 transitions. Word has length 170 [2020-09-25 08:38:35,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:35,773 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 347 transitions. [2020-09-25 08:38:35,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 08:38:35,773 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 347 transitions. [2020-09-25 08:38:35,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 08:38:35,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:35,777 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] [2020-09-25 08:38:35,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:38:35,778 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:35,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:35,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1159802899, now seen corresponding path program 1 times [2020-09-25 08:38:35,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:35,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852215407] [2020-09-25 08:38:35,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:35,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:36,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:36,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:37,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:40,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:40,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 08:38:40,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:38:40,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 08:38:40,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:40,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:40,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:38:40,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 08:38:40,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 08:38:40,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:41,250 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:41,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:41,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 08:38:41,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:41,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:41,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:41,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:41,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:41,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:41,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:41,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:41,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:41,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:41,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:41,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:41,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:41,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:41,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:41,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:41,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:41,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:38:41,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:38:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:38:41,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:38:41,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:38:41,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:41,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:38:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:41,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:38:41,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:38:41,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:38:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:38:41,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:41,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:38:41,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:38:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:41,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:38:41,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:41,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:41,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 08:38:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:41,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:41,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:41,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:41,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 08:38:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:41,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:41,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:41,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:41,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:41,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:38:41,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:41,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:41,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:38:41,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:38:41,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852215407] [2020-09-25 08:38:41,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:41,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:38:41,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089430949] [2020-09-25 08:38:41,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:38:41,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:41,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:38:41,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:38:41,624 INFO L87 Difference]: Start difference. First operand 321 states and 347 transitions. Second operand 8 states. [2020-09-25 08:38:42,220 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190