/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=WIDEST --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_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:56:52,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:56:52,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:56:52,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:56:52,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:56:52,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:56:52,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:56:52,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:56:52,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:56:52,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:56:52,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:56:52,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:56:52,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:56:52,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:56:52,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:56:52,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:56:52,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:56:52,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:56:52,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:56:52,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:56:52,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:56:52,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:56:52,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:56:52,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:56:52,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:56:52,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:56:52,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:56:52,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:56:52,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:56:52,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:56:52,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:56:52,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:56:52,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:56:52,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:56:52,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:56:52,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:56:52,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:56:52,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:56:52,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:56:52,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:56:52,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:56:52,825 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 02:56:52,850 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:56:52,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:56:52,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:56:52,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:56:52,852 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:56:52,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:56:52,852 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:56:52,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:56:52,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:56:52,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:56:52,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:56:52,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:56:52,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:56:52,853 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:56:52,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:56:52,854 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:56:52,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:56:52,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:56:52,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:56:52,855 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:56:52,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:56:52,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:56:52,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:56:52,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:56:52,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:56:52,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:56:52,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:56:52,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:56:52,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:56:52,857 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:56:53,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:56:53,329 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:56:53,335 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:56:53,339 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:56:53,341 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:56:53,343 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-25 02:56:53,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6aa5cdccb/97a5ed1c22b542f682152c2b90d4e9a9/FLAG09aa8434d [2020-09-25 02:56:54,051 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:56:54,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-25 02:56:54,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6aa5cdccb/97a5ed1c22b542f682152c2b90d4e9a9/FLAG09aa8434d [2020-09-25 02:56:54,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6aa5cdccb/97a5ed1c22b542f682152c2b90d4e9a9 [2020-09-25 02:56:54,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:56:54,294 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:56:54,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:56:54,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:56:54,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:56:54,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:56:54" (1/1) ... [2020-09-25 02:56:54,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a098cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:54, skipping insertion in model container [2020-09-25 02:56:54,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:56:54" (1/1) ... [2020-09-25 02:56:54,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:56:54,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:56:54,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:56:54,758 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:56:54,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:56:55,032 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:56:55,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:55 WrapperNode [2020-09-25 02:56:55,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:56:55,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:56:55,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:56:55,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:56:55,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:55" (1/1) ... [2020-09-25 02:56:55,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:55" (1/1) ... [2020-09-25 02:56:55,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:55" (1/1) ... [2020-09-25 02:56:55,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:55" (1/1) ... [2020-09-25 02:56:55,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:55" (1/1) ... [2020-09-25 02:56:55,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:55" (1/1) ... [2020-09-25 02:56:55,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:55" (1/1) ... [2020-09-25 02:56:55,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:56:55,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:56:55,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:56:55,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:56:55,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:55" (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 02:56:55,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:56:55,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:56:55,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:56:55,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:56:55,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:56:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:56:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:56:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:56:55,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:56:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:56:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:56:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:56:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:56:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 02:56:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:56:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:56:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:56:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:56:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:56:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:56:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:56:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:56:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:56:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:56:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:56:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:56:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:56:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:56:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:56:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:56:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:56:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:56:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:56:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:56:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:56:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:56:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:56:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:56:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:56:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:56:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:56:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:56:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:56:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:56:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:56:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:56:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:56:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:56:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:56:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:56:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:56:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:56:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:56:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:56:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:56:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:56:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:56:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:56:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:56:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:56:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:56:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:56:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:56:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:56:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:56:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:56:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:56:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:56:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:56:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:56:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:56:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:56:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:56:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:56:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:56:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:56:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:56:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:56:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 02:56:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:56:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:56:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:56:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:56:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:56:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:56:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:56:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:56:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:56:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:56:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:56:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:56:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:56:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:56:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:56:56,510 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:56:56,511 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:56:56,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:56:56 BoogieIcfgContainer [2020-09-25 02:56:56,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:56:56,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:56:56,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:56:56,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:56:56,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:56:54" (1/3) ... [2020-09-25 02:56:56,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4c2037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:56:56, skipping insertion in model container [2020-09-25 02:56:56,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:55" (2/3) ... [2020-09-25 02:56:56,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4c2037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:56:56, skipping insertion in model container [2020-09-25 02:56:56,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:56:56" (3/3) ... [2020-09-25 02:56:56,535 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2020-09-25 02:56:56,549 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:56:56,561 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:56:56,587 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:56:56,625 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:56:56,625 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:56:56,625 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:56:56,625 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:56:56,626 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:56:56,626 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:56:56,626 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:56:56,626 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:56:56,658 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-25 02:56:56,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 02:56:56,676 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:56:56,678 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 02:56:56,678 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:56:56,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:56:56,691 INFO L82 PathProgramCache]: Analyzing trace with hash 769335885, now seen corresponding path program 1 times [2020-09-25 02:56:56,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:56:56,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80676522] [2020-09-25 02:56:56,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:56:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:58,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:59,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:00,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:02,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:02,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 02:57:02,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:57:02,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 02:57:02,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:57:02,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 02:57:02,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 02:57:02,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:57:02,675 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:02,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:02,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:03,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:03,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:03,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:03,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-09-25 02:57:03,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:03,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:03,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:03,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 02:57:03,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:03,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:03,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:03,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:03,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:03,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:03,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:03,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:03,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:03,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:03,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:03,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:03,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:03,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:03,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:03,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:03,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:03,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:03,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:03,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:03,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:03,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:03,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:03,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:57:03,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:03,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:03,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:03,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:03,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:03,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:03,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:03,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:03,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:03,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:03,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:03,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:03,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:03,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:03,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:03,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:03,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:03,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:03,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:03,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:03,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:03,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:03,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:03,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:03,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:03,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:03,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:03,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:03,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:03,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:03,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:57:03,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:03,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:03,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:03,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 02:57:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:03,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:03,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:03,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:03,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:03,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:03,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:03,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:03,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:03,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:03,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:03,386 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 02:57:03,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80676522] [2020-09-25 02:57:03,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:57:03,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:57:03,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639993012] [2020-09-25 02:57:03,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:57:03,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:03,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:57:03,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:57:03,433 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 9 states. [2020-09-25 02:57:04,101 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:05,215 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:05,560 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:05,979 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:06,439 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:57:06,785 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:57:07,544 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:07,888 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:08,444 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:09,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:09,488 INFO L93 Difference]: Finished difference Result 637 states and 767 transitions. [2020-09-25 02:57:09,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 02:57:09,491 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 02:57:09,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:09,514 INFO L225 Difference]: With dead ends: 637 [2020-09-25 02:57:09,515 INFO L226 Difference]: Without dead ends: 442 [2020-09-25 02:57:09,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 02:57:09,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-09-25 02:57:09,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 371. [2020-09-25 02:57:09,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-09-25 02:57:09,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 408 transitions. [2020-09-25 02:57:09,670 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 408 transitions. Word has length 148 [2020-09-25 02:57:09,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:09,671 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 408 transitions. [2020-09-25 02:57:09,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:57:09,671 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 408 transitions. [2020-09-25 02:57:09,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 02:57:09,677 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:09,677 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] [2020-09-25 02:57:09,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:57:09,678 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:09,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:09,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1213542972, now seen corresponding path program 1 times [2020-09-25 02:57:09,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:09,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982113606] [2020-09-25 02:57:09,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:09,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:11,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:14,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:14,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 02:57:14,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:57:14,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 02:57:14,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:14,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:57:14,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:57:14,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 02:57:14,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:15,175 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:15,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:15,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:15,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:15,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:15,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:15,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 02:57:15,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:15,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:15,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:15,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 02:57:15,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:15,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:15,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:15,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:15,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:15,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:15,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:15,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:15,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:15,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:15,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:15,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:15,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:15,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:15,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:15,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:15,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:15,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:15,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:15,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:15,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:15,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:15,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:15,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:57:15,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:15,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:15,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:15,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:15,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:15,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:15,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:15,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:15,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:15,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:15,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:15,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:15,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:15,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:15,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:15,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:15,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:15,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:15,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:15,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:15,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:15,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:15,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:57:15,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:15,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:57:15,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:15,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:15,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:15,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:57:15,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:57:15,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 02:57:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:15,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:15,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:15,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:15,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:15,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:15,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:15,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:15,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:15,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:15,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 02:57:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:15,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:15,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:15,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:15,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:15,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:15,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:15,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:15,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:15,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:15,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 02:57:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:15,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:15,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:15,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:15,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:15,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:57:15,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:15,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:15,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:15,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:15,676 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 02:57:15,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982113606] [2020-09-25 02:57:15,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:57:15,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 02:57:15,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465718679] [2020-09-25 02:57:15,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 02:57:15,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:15,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 02:57:15,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:57:15,683 INFO L87 Difference]: Start difference. First operand 371 states and 408 transitions. Second operand 11 states. [2020-09-25 02:57:16,306 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:18,040 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 02:57:18,671 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 02:57:19,120 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:19,462 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:19,787 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:21,380 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:57:21,890 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:22,333 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:57:23,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:23,032 INFO L93 Difference]: Finished difference Result 1039 states and 1314 transitions. [2020-09-25 02:57:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-25 02:57:23,033 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2020-09-25 02:57:23,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:23,048 INFO L225 Difference]: With dead ends: 1039 [2020-09-25 02:57:23,048 INFO L226 Difference]: Without dead ends: 783 [2020-09-25 02:57:23,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 02:57:23,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2020-09-25 02:57:23,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 532. [2020-09-25 02:57:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-09-25 02:57:23,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 605 transitions. [2020-09-25 02:57:23,181 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 605 transitions. Word has length 167 [2020-09-25 02:57:23,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:23,182 INFO L479 AbstractCegarLoop]: Abstraction has 532 states and 605 transitions. [2020-09-25 02:57:23,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 02:57:23,182 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 605 transitions. [2020-09-25 02:57:23,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-09-25 02:57:23,187 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:23,187 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:23,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:57:23,188 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:23,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:23,188 INFO L82 PathProgramCache]: Analyzing trace with hash 539838651, now seen corresponding path program 1 times [2020-09-25 02:57:23,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:23,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500515387] [2020-09-25 02:57:23,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:23,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:23,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:23,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:23,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:23,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:24,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:24,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:25,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:28,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:28,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 336 [2020-09-25 02:57:28,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 02:57:28,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-09-25 02:57:28,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:57:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 02:57:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:57:28,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:28,713 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:28,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:28,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:28,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:28,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:28,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:28,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 02:57:28,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:28,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:28,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:28,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:28,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:28,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:28,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:28,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:28,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:28,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:28,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:28,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:28,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:28,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:28,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:28,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:28,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:28,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:28,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:28,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:28,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:28,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:28,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:28,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:28,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:28,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:28,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:28,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:28,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:28,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:28,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:28,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:28,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:28,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:28,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:28,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:28,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:28,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:28,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:28,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:28,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:28,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:28,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:28,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:28,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:28,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:28,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:28,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:28,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:28,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:28,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:28,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:28,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:28,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:28,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:28,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:28,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:28,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:57:28,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:28,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:28,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:28,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:28,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:28,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:57:28,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:28,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 02:57:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:28,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:28,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:28,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:28,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:28,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:28,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:28,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:28,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:28,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 02:57:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 02:57:29,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:57:29,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 02:57:29,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:29,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:29,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 02:57:29,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 02:57:29,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:29,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:29,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:29,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:29,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:29,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:29,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:29,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:29,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:29,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 02:57:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 02:57:29,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:57:29,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:57:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 02:57:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:57:29,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 02:57:29,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:57:29,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:57:29,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:29,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:57:29,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:29,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:57:29,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:57:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:57:29,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 02:57:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 02:57:29,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:57:29,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 02:57:29,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 02:57:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:57:29,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:57:29,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 02:57:29,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:29,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:57:29,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:57:29,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:29,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:57:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:57:29,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:57:29,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:57:29,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:29,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:29,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:57:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 02:57:29,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:57:29,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:29,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 02:57:29,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:29,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:57:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 02:57:29,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:29,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:29,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:29,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:29,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:57:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:29,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:29,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:29,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 02:57:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:29,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:29,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:29,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-09-25 02:57:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:29,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:29,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:29,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:29,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:29,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-09-25 02:57:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:29,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:29,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:29,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:29,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:29,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:29,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:29,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:29,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:29,695 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 02:57:29,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500515387] [2020-09-25 02:57:29,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:57:29,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 02:57:29,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243115369] [2020-09-25 02:57:29,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 02:57:29,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:29,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 02:57:29,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-09-25 02:57:29,699 INFO L87 Difference]: Start difference. First operand 532 states and 605 transitions. Second operand 18 states. [2020-09-25 02:57:30,314 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:31,543 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:32,196 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:32,539 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:32,910 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:33,290 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:33,606 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:33,939 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:34,268 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:34,592 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:57:34,931 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:35,311 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:35,633 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:36,027 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:36,354 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:36,675 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:57:37,012 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:37,340 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:37,652 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:38,115 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:38,534 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:38,886 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:42,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:42,627 INFO L93 Difference]: Finished difference Result 1373 states and 1828 transitions. [2020-09-25 02:57:42,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-09-25 02:57:42,628 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 273 [2020-09-25 02:57:42,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:42,637 INFO L225 Difference]: With dead ends: 1373 [2020-09-25 02:57:42,637 INFO L226 Difference]: Without dead ends: 956 [2020-09-25 02:57:42,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1420 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=892, Invalid=3800, Unknown=0, NotChecked=0, Total=4692 [2020-09-25 02:57:42,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2020-09-25 02:57:42,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 542. [2020-09-25 02:57:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-09-25 02:57:42,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 609 transitions. [2020-09-25 02:57:42,731 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 609 transitions. Word has length 273 [2020-09-25 02:57:42,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:42,732 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 609 transitions. [2020-09-25 02:57:42,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 02:57:42,733 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 609 transitions. [2020-09-25 02:57:42,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-25 02:57:42,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:42,737 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:42,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:57:42,737 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:42,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:42,738 INFO L82 PathProgramCache]: Analyzing trace with hash 173916020, now seen corresponding path program 1 times [2020-09-25 02:57:42,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:42,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526039230] [2020-09-25 02:57:42,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:42,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:42,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking...