/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_spec3_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:23:30,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:23:30,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:23:30,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:23:30,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:23:30,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:23:30,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:23:30,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:23:30,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:23:30,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:23:30,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:23:30,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:23:30,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:23:30,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:23:30,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:23:30,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:23:30,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:23:30,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:23:30,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:23:30,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:23:30,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:23:30,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:23:30,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:23:30,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:23:30,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:23:30,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:23:30,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:23:30,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:23:30,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:23:30,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:23:30,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:23:30,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:23:30,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:23:30,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:23:30,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:23:30,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:23:30,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:23:30,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:23:30,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:23:30,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:23:30,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:23:30,749 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 06:23:30,799 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:23:30,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:23:30,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:23:30,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:23:30,804 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:23:30,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:23:30,805 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:23:30,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:23:30,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:23:30,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:23:30,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:23:30,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:23:30,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:23:30,807 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:23:30,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:23:30,808 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:23:30,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:23:30,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:23:30,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:23:30,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:23:30,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:23:30,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:23:30,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:23:30,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:23:30,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:23:30,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:23:30,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:23:30,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:23:30,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:23:30,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:23:31,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:23:31,331 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:23:31,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:23:31,338 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:23:31,339 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:23:31,340 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-09-25 06:23:31,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fef790945/9cb7575c807f41c7a3d5afb86653f9cb/FLAG9662ff1cd [2020-09-25 06:23:32,055 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:23:32,058 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-09-25 06:23:32,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fef790945/9cb7575c807f41c7a3d5afb86653f9cb/FLAG9662ff1cd [2020-09-25 06:23:32,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fef790945/9cb7575c807f41c7a3d5afb86653f9cb [2020-09-25 06:23:32,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:23:32,325 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:23:32,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:23:32,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:23:32,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:23:32,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:23:32" (1/1) ... [2020-09-25 06:23:32,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:32, skipping insertion in model container [2020-09-25 06:23:32,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:23:32" (1/1) ... [2020-09-25 06:23:32,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:23:32,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:23:32,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:23:32,893 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:23:32,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:23:33,024 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:23:33,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:33 WrapperNode [2020-09-25 06:23:33,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:23:33,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:23:33,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:23:33,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:23:33,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:33" (1/1) ... [2020-09-25 06:23:33,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:33" (1/1) ... [2020-09-25 06:23:33,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:33" (1/1) ... [2020-09-25 06:23:33,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:33" (1/1) ... [2020-09-25 06:23:33,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:33" (1/1) ... [2020-09-25 06:23:33,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:33" (1/1) ... [2020-09-25 06:23:33,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:33" (1/1) ... [2020-09-25 06:23:33,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:23:33,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:23:33,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:23:33,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:23:33,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:33" (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 06:23:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:23:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:23:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:23:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:23:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:23:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:23:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:23:33,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:23:33,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:23:33,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:23:33,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:23:33,241 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:23:33,241 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:23:33,241 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:23:33,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:23:33,242 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:23:33,243 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:23:33,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:23:33,243 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:23:33,243 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:23:33,244 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:23:33,245 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:23:33,245 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:23:33,245 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:23:33,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:23:33,247 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:23:33,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:23:33,248 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:23:33,248 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:23:33,248 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:23:33,248 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:23:33,248 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:23:33,248 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:23:33,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:23:33,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:23:33,249 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:23:33,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:23:33,250 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:23:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:23:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:23:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:23:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:23:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:23:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:23:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:23:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:23:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:23:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:23:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:23:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:23:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:23:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:23:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:23:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:23:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:23:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:23:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:23:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:23:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:23:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:23:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:23:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:23:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:23:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:23:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:23:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:23:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:23:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:23:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:23:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:23:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:23:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:23:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:23:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:23:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:23:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:23:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:23:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:23:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:23:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:23:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:23:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:23:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:23:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:23:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:23:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:23:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:23:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:23:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:23:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:23:34,480 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:23:34,480 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:23:34,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:23:34 BoogieIcfgContainer [2020-09-25 06:23:34,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:23:34,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:23:34,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:23:34,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:23:34,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:23:32" (1/3) ... [2020-09-25 06:23:34,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404b2f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:23:34, skipping insertion in model container [2020-09-25 06:23:34,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:33" (2/3) ... [2020-09-25 06:23:34,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404b2f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:23:34, skipping insertion in model container [2020-09-25 06:23:34,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:23:34" (3/3) ... [2020-09-25 06:23:34,497 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2020-09-25 06:23:34,509 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:23:34,521 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:23:34,545 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:23:34,582 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:23:34,583 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:23:34,583 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:23:34,583 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:23:34,583 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:23:34,583 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:23:34,584 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:23:34,584 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:23:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 06:23:34,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 06:23:34,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:34,637 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] [2020-09-25 06:23:34,638 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:34,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:34,646 INFO L82 PathProgramCache]: Analyzing trace with hash 984796511, now seen corresponding path program 1 times [2020-09-25 06:23:34,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:34,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852221043] [2020-09-25 06:23:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:35,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:35,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:36,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:39,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:39,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 06:23:39,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:23:39,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4626 [2020-09-25 06:23:39,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:39,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:39,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:39,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:23:39,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:23:40,120 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:40,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:40,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 06:23:40,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:40,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:40,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:40,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:40,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:40,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:40,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:40,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:40,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:40,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:40,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:40,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:40,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:40,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:23:40,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:40,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:40,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:40,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:40,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:40,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:40,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:23:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:40,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:40,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:40,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:40,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:40,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:40,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:23:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:40,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:40,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:40,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:40,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:40,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:40,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 06:23:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:40,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 06:23:40,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:40,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:40,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:40,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,650 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 06:23:40,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852221043] [2020-09-25 06:23:40,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:40,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:23:40,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344489122] [2020-09-25 06:23:40,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:23:40,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:40,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:23:40,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:23:40,698 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 3 states. [2020-09-25 06:23:42,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:42,009 INFO L93 Difference]: Finished difference Result 435 states and 517 transitions. [2020-09-25 06:23:42,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:23:42,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 06:23:42,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:42,032 INFO L225 Difference]: With dead ends: 435 [2020-09-25 06:23:42,032 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 06:23:42,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:23:42,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 06:23:42,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235. [2020-09-25 06:23:42,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 06:23:42,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 253 transitions. [2020-09-25 06:23:42,141 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 253 transitions. Word has length 153 [2020-09-25 06:23:42,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:42,142 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 253 transitions. [2020-09-25 06:23:42,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:23:42,142 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 253 transitions. [2020-09-25 06:23:42,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 06:23:42,147 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:42,148 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] [2020-09-25 06:23:42,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:23:42,148 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:42,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:42,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1074714265, now seen corresponding path program 1 times [2020-09-25 06:23:42,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:42,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650256564] [2020-09-25 06:23:42,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:42,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:42,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:42,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:47,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:47,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 06:23:47,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:23:47,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:23:47,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:47,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:47,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:47,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 06:23:47,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 06:23:47,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:47,586 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:47,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:47,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:47,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:47,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:47,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:47,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-25 06:23:47,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:47,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:47,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:47,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:47,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:23:47,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:47,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:47,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:47,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:47,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:47,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:47,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:47,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:48,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:48,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:48,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:48,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:48,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:48,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:48,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:48,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:48,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:48,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:48,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:23:48,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:48,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:48,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:48,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:48,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:48,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:48,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:48,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:48,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:23:48,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:48,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:48,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:48,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:48,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:48,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:48,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:48,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:48,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:48,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:48,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:48,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:48,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:48,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:48,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:48,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:48,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 06:23:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:48,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:48,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:48,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:48,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:48,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:48,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:48,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:48,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:48,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:23:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:48,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:48,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:48,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:48,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:48,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:48,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:48,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:48,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:48,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:48,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:48,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 06:23:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:48,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:48,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:48,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:48,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:48,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:48,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:48,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:48,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:48,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:48,104 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 06:23:48,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650256564] [2020-09-25 06:23:48,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:48,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:23:48,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218435658] [2020-09-25 06:23:48,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:23:48,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:48,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:23:48,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:23:48,109 INFO L87 Difference]: Start difference. First operand 235 states and 253 transitions. Second operand 4 states. [2020-09-25 06:23:48,649 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:23:49,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:49,493 INFO L93 Difference]: Finished difference Result 399 states and 458 transitions. [2020-09-25 06:23:49,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:23:49,494 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 06:23:49,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:49,502 INFO L225 Difference]: With dead ends: 399 [2020-09-25 06:23:49,502 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 06:23:49,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:23:49,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 06:23:49,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235. [2020-09-25 06:23:49,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 06:23:49,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-09-25 06:23:49,550 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-09-25 06:23:49,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:49,551 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-09-25 06:23:49,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:23:49,551 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-09-25 06:23:49,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:23:49,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:49,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:23:49,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:23:49,555 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:49,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:49,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1541865088, now seen corresponding path program 1 times [2020-09-25 06:23:49,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:49,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643939554] [2020-09-25 06:23:49,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:49,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:49,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:52,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:52,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 06:23:52,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:23:52,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3141 [2020-09-25 06:23:52,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:52,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:23:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:23:52,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:53,029 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:53,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:53,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:53,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:53,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:53,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:53,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 06:23:53,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:53,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:53,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:53,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:53,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:53,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:53,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:53,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:53,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:53,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:53,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:53,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:53,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:53,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:53,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:53,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:53,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:53,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:53,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:53,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:53,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:53,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:53,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:53,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:53,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:53,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:53,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:53,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:53,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:53,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:53,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:53,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:53,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:53,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:53,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:53,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:53,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:53,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:53,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:53,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:53,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:53,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:23:53,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:53,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:53,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:53,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:53,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:53,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:53,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 06:23:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:53,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:53,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:53,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:23:53,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:53,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:53,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:53,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:53,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:53,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:23:53,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:53,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:53,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:23:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:53,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:53,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:53,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:53,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:53,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:23:53,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:53,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:53,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:53,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:23:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:53,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:53,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:53,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:53,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:53,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:53,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:53,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:53,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:53,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:53,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:53,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:23:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:53,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:53,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:53,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:53,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:53,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:53,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:53,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:53,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 06:23:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:53,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:53,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:53,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:53,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:53,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:53,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:53,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:53,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:53,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:53,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:53,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:53,288 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 06:23:53,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643939554] [2020-09-25 06:23:53,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:53,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:23:53,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998506630] [2020-09-25 06:23:53,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:23:53,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:53,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:23:53,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:23:53,292 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 5 states. [2020-09-25 06:23:53,996 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:23:54,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:54,969 INFO L93 Difference]: Finished difference Result 376 states and 426 transitions. [2020-09-25 06:23:54,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:23:54,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-09-25 06:23:54,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:54,973 INFO L225 Difference]: With dead ends: 376 [2020-09-25 06:23:54,974 INFO L226 Difference]: Without dead ends: 281 [2020-09-25 06:23:54,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:23:54,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-25 06:23:55,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 225. [2020-09-25 06:23:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-09-25 06:23:55,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 239 transitions. [2020-09-25 06:23:55,038 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 239 transitions. Word has length 162 [2020-09-25 06:23:55,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:55,039 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 239 transitions. [2020-09-25 06:23:55,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:23:55,040 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 239 transitions. [2020-09-25 06:23:55,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 06:23:55,042 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:55,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:23:55,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:23:55,042 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:55,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:55,043 INFO L82 PathProgramCache]: Analyzing trace with hash 973971077, now seen corresponding path program 1 times [2020-09-25 06:23:55,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:55,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642105738] [2020-09-25 06:23:55,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:55,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:56,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:56,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 06:23:56,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:56,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1862 [2020-09-25 06:23:56,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:56,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:56,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 06:23:56,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 06:23:56,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 06:23:56,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:57,333 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:57,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:57,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:57,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:57,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:57,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:57,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 06:23:57,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:57,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:57,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:57,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:57,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 06:23:57,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:57,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:57,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:57,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:57,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:57,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:57,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:57,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:57,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:57,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:57,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:57,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:57,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:57,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:57,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:57,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:57,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:57,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:57,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:57,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:57,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:57,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:57,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:57,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:23:57,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:57,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:57,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:57,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:57,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:57,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:57,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:57,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:57,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:57,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:57,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:57,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:57,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:57,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:57,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:57,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:57,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:23:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:57,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:57,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:57,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:23:57,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:57,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:57,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:57,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:57,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:57,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:57,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:23:57,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:57,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:23:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:57,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:57,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:57,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:57,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:57,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:23:57,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:57,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:57,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:57,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:23:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:57,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:57,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:57,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:57,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:57,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:57,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:57,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:57,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:57,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:57,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:57,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:57,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:23:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:57,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:57,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:57,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:57,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:57,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:23:57,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:57,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:23:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:57,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:23:57,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 06:23:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:57,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:57,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:57,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:57,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:57,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:57,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:57,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:57,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 06:23:57,845 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 06:23:57,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642105738] [2020-09-25 06:23:57,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:57,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:23:57,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162843336] [2020-09-25 06:23:57,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:23:57,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:57,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:23:57,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:23:57,848 INFO L87 Difference]: Start difference. First operand 225 states and 239 transitions. Second operand 9 states. [2020-09-25 06:23:58,378 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:23:59,295 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:24:00,532 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 06:24:01,164 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 06:24:01,527 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:24:01,903 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:24:02,246 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:24:02,579 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:24:03,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:24:03,239 INFO L93 Difference]: Finished difference Result 526 states and 615 transitions. [2020-09-25 06:24:03,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:24:03,240 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-25 06:24:03,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:24:03,245 INFO L225 Difference]: With dead ends: 526 [2020-09-25 06:24:03,246 INFO L226 Difference]: Without dead ends: 411 [2020-09-25 06:24:03,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:24:03,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-09-25 06:24:03,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 336. [2020-09-25 06:24:03,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-25 06:24:03,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 365 transitions. [2020-09-25 06:24:03,305 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 365 transitions. Word has length 171 [2020-09-25 06:24:03,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:24:03,306 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 365 transitions. [2020-09-25 06:24:03,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:24:03,306 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 365 transitions. [2020-09-25 06:24:03,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 06:24:03,309 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:03,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:24:03,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:24:03,309 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:03,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:03,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1376953546, now seen corresponding path program 1 times [2020-09-25 06:24:03,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:03,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865996266] [2020-09-25 06:24:03,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:03,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:03,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:06,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:07,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:08,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:08,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 06:24:08,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:24:08,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 06:24:08,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:08,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:08,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:24:08,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:24:08,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:24:08,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:08,722 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:24:08,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:24:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:08,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:08,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:08,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:24:08,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:08,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 06:24:08,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:08,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:08,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:08,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:08,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:08,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:08,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:24:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:08,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:08,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:08,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:08,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:08,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:08,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:08,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:08,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:08,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:08,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:08,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:08,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:24:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:08,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:08,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:08,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:08,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:08,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:08,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:08,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:08,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:08,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:08,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:08,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:08,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:24:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:08,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:08,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:08,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:08,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:08,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:24:08,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:08,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:08,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:08,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:08,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:08,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:24:08,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:24:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:08,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:08,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:08,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:08,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:08,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:24:08,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:08,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:08,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:08,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:08,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:08,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:08,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:24:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:08,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:08,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:08,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:24:08,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:08,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:24:08,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:08,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:08,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:24:08,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:08,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:24:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:08,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:08,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:08,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:24:08,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:08,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 06:24:08,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:08,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:08,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:24:08,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:24:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:24:09,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:24:09,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:24:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:09,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:09,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:09,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:24:09,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:09,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:24:09,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:09,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:09,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:24:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:24:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:24:09,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:24:09,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:24:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:09,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:09,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:09,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:09,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:09,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:24:09,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:09,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:09,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:24:09,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 06:24:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:09,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:09,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:09,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:09,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:09,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:09,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:09,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:09,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:09,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 06:24:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:24:09,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:24:09,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:24:09,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:24:09,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:24:09,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:24:09,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:24:09,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:24:09,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:24:09,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:24:09,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:24:09,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:24:09,195 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 06:24:09,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865996266] [2020-09-25 06:24:09,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:24:09,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:24:09,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922130238] [2020-09-25 06:24:09,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:24:09,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:24:09,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:24:09,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:24:09,201 INFO L87 Difference]: Start difference. First operand 336 states and 365 transitions. Second operand 7 states. [2020-09-25 06:24:10,131 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:24:10,380 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:24:12,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:24:12,580 INFO L93 Difference]: Finished difference Result 790 states and 932 transitions. [2020-09-25 06:24:12,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 06:24:12,582 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-09-25 06:24:12,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:24:12,586 INFO L225 Difference]: With dead ends: 790 [2020-09-25 06:24:12,586 INFO L226 Difference]: Without dead ends: 564 [2020-09-25 06:24:12,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:24:12,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-09-25 06:24:12,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 501. [2020-09-25 06:24:12,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-09-25 06:24:12,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 564 transitions. [2020-09-25 06:24:12,650 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 564 transitions. Word has length 176 [2020-09-25 06:24:12,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:24:12,650 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 564 transitions. [2020-09-25 06:24:12,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:24:12,651 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 564 transitions. [2020-09-25 06:24:12,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 06:24:12,653 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:24:12,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:24:12,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:24:12,654 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:24:12,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:24:12,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1373722854, now seen corresponding path program 1 times [2020-09-25 06:24:12,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:24:12,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975431982] [2020-09-25 06:24:12,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:24:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:24:12,717 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:24:12,717 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:24:12,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:24:12,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:24:12 BoogieIcfgContainer [2020-09-25 06:24:12,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:24:12,756 INFO L168 Benchmark]: Toolchain (without parser) took 40435.99 ms. Allocated memory was 138.4 MB in the beginning and 720.4 MB in the end (delta: 582.0 MB). Free memory was 99.7 MB in the beginning and 577.2 MB in the end (delta: -477.5 MB). Peak memory consumption was 104.5 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:12,757 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 06:24:12,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.46 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 99.0 MB in the beginning and 169.2 MB in the end (delta: -70.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:12,759 INFO L168 Benchmark]: Boogie Preprocessor took 123.23 ms. Allocated memory is still 200.3 MB. Free memory was 169.2 MB in the beginning and 165.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:12,760 INFO L168 Benchmark]: RCFGBuilder took 1338.54 ms. Allocated memory was 200.3 MB in the beginning and 231.2 MB in the end (delta: 30.9 MB). Free memory was 165.0 MB in the beginning and 175.8 MB in the end (delta: -10.7 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:12,761 INFO L168 Benchmark]: TraceAbstraction took 38264.99 ms. Allocated memory was 231.2 MB in the beginning and 720.4 MB in the end (delta: 489.2 MB). Free memory was 175.8 MB in the beginning and 577.2 MB in the end (delta: -401.4 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. [2020-09-25 06:24:12,765 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.46 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 99.0 MB in the beginning and 169.2 MB in the end (delta: -70.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.23 ms. Allocated memory is still 200.3 MB. Free memory was 169.2 MB in the beginning and 165.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1338.54 ms. Allocated memory was 200.3 MB in the beginning and 231.2 MB in the end (delta: 30.9 MB). Free memory was 165.0 MB in the beginning and 175.8 MB in the end (delta: -10.7 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 38264.99 ms. Allocated memory was 231.2 MB in the beginning and 720.4 MB in the end (delta: 489.2 MB). Free memory was 175.8 MB in the beginning and 577.2 MB in the end (delta: -401.4 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L458] int waterLevel = 1; [L459] int methaneLevelCritical = 0; [L585] int cleanupTimeShifts = 4; [L686] int pumpRunning = 0; [L687] int systemActive = 1; [L661] int retValue_acc ; [L662] int tmp ; [L666] FCALL select_helpers() [L667] FCALL select_features() [L668] CALL, EXPR valid_product() [L576] int retValue_acc ; [L579] retValue_acc = 1 [L580] return (retValue_acc); [L668] RET, EXPR valid_product() [L668] tmp = valid_product() [L670] COND TRUE \read(tmp) [L672] FCALL setup() [L673] CALL runTest() [L655] CALL test() [L857] int splverifierCounter ; [L858] int tmp ; [L859] int tmp___0 ; [L860] int tmp___1 ; [L861] int tmp___2 ; [L864] splverifierCounter = 0 [L866] COND TRUE 1 [L868] COND TRUE splverifierCounter < 4 [L874] tmp = __VERIFIER_nondet_int() [L876] COND TRUE \read(tmp) [L878] CALL waterRise() [L476] COND TRUE waterLevel < 2 [L477] waterLevel = waterLevel + 1 [L878] RET waterRise() [L884] tmp___0 = __VERIFIER_nondet_int() [L886] COND FALSE !(\read(tmp___0)) [L894] tmp___2 = __VERIFIER_nondet_int() [L896] COND TRUE \read(tmp___2) [L909] CALL timeShift() [L693] COND FALSE !(\read(pumpRunning)) [L700] COND TRUE \read(systemActive) [L702] CALL processEnvironment() [L722] int tmp ; [L725] COND FALSE !(\read(pumpRunning)) [L740] FCALL processEnvironment__wrappee__base() [L702] RET processEnvironment() [L708] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L497] int retValue_acc ; [L500] retValue_acc = methaneLevelCritical [L501] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L529] int retValue_acc ; [L532] retValue_acc = waterLevel [L533] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L792] int retValue_acc ; [L795] retValue_acc = pumpRunning [L796] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 38.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1187 SDtfs, 1668 SDslu, 1092 SDs, 0 SdLazy, 2446 SolverSat, 458 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=501occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 272 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.4s InterpolantComputationTime, 992 NumberOfCodeBlocks, 992 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 811 ConstructedInterpolants, 0 QuantifiedInterpolants, 321902 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...