/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=0.4 --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_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:16:25,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:16:25,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:16:25,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:16:25,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:16:25,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:16:25,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:16:25,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:16:25,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:16:25,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:16:25,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:16:25,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:16:25,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:16:25,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:16:25,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:16:25,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:16:25,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:16:25,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:16:25,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:16:25,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:16:25,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:16:25,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:16:25,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:16:25,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:16:25,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:16:25,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:16:25,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:16:25,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:16:25,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:16:25,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:16:25,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:16:25,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:16:25,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:16:25,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:16:25,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:16:25,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:16:25,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:16:25,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:16:25,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:16:25,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:16:25,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:16:25,740 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 05:16:25,787 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:16:25,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:16:25,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:16:25,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:16:25,790 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:16:25,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:16:25,790 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:16:25,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:16:25,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:16:25,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:16:25,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:16:25,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:16:25,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:16:25,793 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:16:25,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:16:25,793 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:16:25,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:16:25,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:16:25,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:16:25,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:16:25,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:16:25,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:16:25,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:16:25,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:16:25,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:16:25,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:16:25,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:16:25,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:16:25,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:16:25,796 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:16:26,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:16:26,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:16:26,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:16:26,263 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:16:26,264 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:16:26,265 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-09-25 05:16:26,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/492f912db/7c8279b2e30d474faf5272107ce5167d/FLAG128319653 [2020-09-25 05:16:26,934 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:16:26,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-09-25 05:16:26,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/492f912db/7c8279b2e30d474faf5272107ce5167d/FLAG128319653 [2020-09-25 05:16:27,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/492f912db/7c8279b2e30d474faf5272107ce5167d [2020-09-25 05:16:27,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:16:27,239 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:16:27,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:16:27,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:16:27,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:16:27,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:16:27" (1/1) ... [2020-09-25 05:16:27,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:27, skipping insertion in model container [2020-09-25 05:16:27,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:16:27" (1/1) ... [2020-09-25 05:16:27,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:16:27,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:16:27,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:16:27,722 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:16:27,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:16:27,972 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:16:27,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:27 WrapperNode [2020-09-25 05:16:27,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:16:27,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:16:27,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:16:27,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:16:27,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:27" (1/1) ... [2020-09-25 05:16:27,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:27" (1/1) ... [2020-09-25 05:16:28,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:27" (1/1) ... [2020-09-25 05:16:28,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:27" (1/1) ... [2020-09-25 05:16:28,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:27" (1/1) ... [2020-09-25 05:16:28,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:27" (1/1) ... [2020-09-25 05:16:28,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:27" (1/1) ... [2020-09-25 05:16:28,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:16:28,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:16:28,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:16:28,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:16:28,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:27" (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 05:16:28,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:16:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:16:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:16:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:16:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:16:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:16:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:16:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:16:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:16:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:16:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:16:28,193 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:16:28,193 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:16:28,193 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:16:28,193 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:16:28,193 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 05:16:28,194 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:16:28,194 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 05:16:28,194 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:16:28,194 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:16:28,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:16:28,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:16:28,195 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:16:28,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:16:28,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 05:16:28,195 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:16:28,195 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:16:28,196 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:16:28,196 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:16:28,196 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:16:28,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:16:28,196 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:16:28,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:16:28,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:16:28,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 05:16:28,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:16:28,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 05:16:28,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:16:28,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:16:28,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:16:28,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:16:28,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:16:28,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:16:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:16:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:16:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:16:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:16:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:16:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:16:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:16:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:16:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:16:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:16:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:16:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:16:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:16:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:16:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:16:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:16:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:16:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:16:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:16:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:16:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:16:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 05:16:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:16:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:16:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:16:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:16:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 05:16:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:16:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:16:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:16:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:16:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 05:16:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 05:16:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:16:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 05:16:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:16:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:16:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:16:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:16:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:16:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:16:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:16:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:16:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:16:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:16:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:16:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:16:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:16:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:16:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:16:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:16:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:16:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:16:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:16:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:16:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:16:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:16:29,450 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:16:29,451 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:16:29,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:16:29 BoogieIcfgContainer [2020-09-25 05:16:29,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:16:29,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:16:29,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:16:29,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:16:29,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:16:27" (1/3) ... [2020-09-25 05:16:29,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3b71cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:16:29, skipping insertion in model container [2020-09-25 05:16:29,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:27" (2/3) ... [2020-09-25 05:16:29,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3b71cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:16:29, skipping insertion in model container [2020-09-25 05:16:29,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:16:29" (3/3) ... [2020-09-25 05:16:29,477 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2020-09-25 05:16:29,491 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:16:29,505 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:16:29,530 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:16:29,577 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:16:29,578 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:16:29,579 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:16:29,580 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:16:29,580 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:16:29,580 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:16:29,580 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:16:29,581 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:16:29,630 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states. [2020-09-25 05:16:29,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 05:16:29,668 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:29,671 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 05:16:29,672 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:29,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:29,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1710422987, now seen corresponding path program 1 times [2020-09-25 05:16:29,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:29,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2130333592] [2020-09-25 05:16:29,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:30,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:30,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:31,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 05:16:35,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:16:35,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-09-25 05:16:35,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:16:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 05:16:35,689 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:35,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:35,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 05:16:35,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:35,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:35,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:35,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:35,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:35,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:35,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:35,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:35,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:35,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:35,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:35,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:16:35,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:35,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:35,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:35,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:35,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:35,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:16:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:35,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:35,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:35,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:35,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:35,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:16:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:35,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:35,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:35,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:35,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:35,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 05:16:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:35,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:35,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:35,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:35,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:35,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:36,027 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 05:16:36,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2130333592] [2020-09-25 05:16:36,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:36,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:16:36,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516169281] [2020-09-25 05:16:36,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:16:36,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:36,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:16:36,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:16:36,060 INFO L87 Difference]: Start difference. First operand 358 states. Second operand 3 states. [2020-09-25 05:16:37,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:16:37,658 INFO L93 Difference]: Finished difference Result 587 states and 700 transitions. [2020-09-25 05:16:37,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:16:37,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 05:16:37,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:16:37,682 INFO L225 Difference]: With dead ends: 587 [2020-09-25 05:16:37,683 INFO L226 Difference]: Without dead ends: 354 [2020-09-25 05:16:37,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:16:37,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-09-25 05:16:37,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 307. [2020-09-25 05:16:37,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-09-25 05:16:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 339 transitions. [2020-09-25 05:16:37,808 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 339 transitions. Word has length 153 [2020-09-25 05:16:37,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:16:37,809 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 339 transitions. [2020-09-25 05:16:37,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:16:37,810 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 339 transitions. [2020-09-25 05:16:37,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 05:16:37,814 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:37,815 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 05:16:37,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:16:37,815 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:37,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:37,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1065336794, now seen corresponding path program 1 times [2020-09-25 05:16:37,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:37,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262010732] [2020-09-25 05:16:37,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:37,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:38,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:39,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:42,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:42,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 05:16:42,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:16:42,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 05:16:42,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:42,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:42,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:16:42,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:16:42,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:43,173 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:43,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:43,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:43,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:43,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:43,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:43,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 05:16:43,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:43,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:43,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:43,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:43,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:43,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:43,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:43,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:43,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:43,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:43,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:43,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:43,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:43,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:43,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:43,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:43,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:43,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:43,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:43,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:43,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:16:43,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:43,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:43,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:43,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:43,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:43,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:43,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:43,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:43,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:43,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:43,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:43,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:16:43,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:43,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:43,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:43,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:43,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:43,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:43,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:43,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:43,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:43,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:43,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:43,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:43,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 05:16:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:43,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:43,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:43,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:43,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:43,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:43,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:43,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:43,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:43,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:43,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:43,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:43,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:16:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:43,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:43,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:43,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:43,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:43,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:43,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:43,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:43,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:43,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:43,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:43,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 05:16:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:43,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:43,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:43,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:43,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:43,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:43,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:43,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:43,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:43,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:43,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:43,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:43,385 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 05:16:43,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262010732] [2020-09-25 05:16:43,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:43,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:16:43,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815957856] [2020-09-25 05:16:43,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:16:43,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:43,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:16:43,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:16:43,390 INFO L87 Difference]: Start difference. First operand 307 states and 339 transitions. Second operand 4 states. [2020-09-25 05:16:43,995 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:16:45,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:16:45,431 INFO L93 Difference]: Finished difference Result 498 states and 567 transitions. [2020-09-25 05:16:45,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:16:45,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 05:16:45,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:16:45,441 INFO L225 Difference]: With dead ends: 498 [2020-09-25 05:16:45,441 INFO L226 Difference]: Without dead ends: 337 [2020-09-25 05:16:45,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:16:45,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-09-25 05:16:45,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 297. [2020-09-25 05:16:45,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-09-25 05:16:45,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 326 transitions. [2020-09-25 05:16:45,499 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 326 transitions. Word has length 154 [2020-09-25 05:16:45,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:16:45,500 INFO L479 AbstractCegarLoop]: Abstraction has 297 states and 326 transitions. [2020-09-25 05:16:45,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:16:45,500 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 326 transitions. [2020-09-25 05:16:45,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 05:16:45,503 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:45,507 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] [2020-09-25 05:16:45,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:16:45,507 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:45,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:45,508 INFO L82 PathProgramCache]: Analyzing trace with hash -2091062943, now seen corresponding path program 1 times [2020-09-25 05:16:45,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:45,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492203730] [2020-09-25 05:16:45,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:45,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:46,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:49,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:49,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 05:16:49,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:16:49,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4195 [2020-09-25 05:16:49,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:49,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:49,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:16:49,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 05:16:49,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 05:16:49,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:50,066 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:50,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:50,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:50,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:50,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:50,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:50,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 05:16:50,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:50,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:50,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:50,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:50,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 05:16:50,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:50,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:50,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:50,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:50,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:50,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:50,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:50,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:50,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:50,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:50,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:50,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:50,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:50,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:50,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:50,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:50,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:50,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:50,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:50,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:50,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:50,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:50,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:50,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:50,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:50,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:50,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:50,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:50,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:50,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:50,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:16:50,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:50,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:50,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:50,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:50,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:50,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:16:50,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:50,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:50,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:50,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:50,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:50,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:50,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:50,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:50,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:50,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:16:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:50,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:50,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:50,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:50,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:50,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:50,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:50,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:50,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:50,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 05:16:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:50,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:50,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:50,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:50,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:50,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:16:50,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:50,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:50,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:50,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:50,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:50,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:50,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 05:16:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:50,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:50,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:50,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:50,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:50,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:50,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:50,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:50,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:50,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:50,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:50,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:50,519 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 05:16:50,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492203730] [2020-09-25 05:16:50,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:50,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:16:50,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66733224] [2020-09-25 05:16:50,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:16:50,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:50,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:16:50,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:16:50,526 INFO L87 Difference]: Start difference. First operand 297 states and 326 transitions. Second operand 4 states. [2020-09-25 05:16:51,261 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:16:53,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:16:53,727 INFO L93 Difference]: Finished difference Result 727 states and 839 transitions. [2020-09-25 05:16:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:16:53,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 05:16:53,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:16:53,733 INFO L225 Difference]: With dead ends: 727 [2020-09-25 05:16:53,734 INFO L226 Difference]: Without dead ends: 540 [2020-09-25 05:16:53,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:16:53,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-09-25 05:16:53,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 478. [2020-09-25 05:16:53,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-09-25 05:16:53,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 537 transitions. [2020-09-25 05:16:53,820 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 537 transitions. Word has length 163 [2020-09-25 05:16:53,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:16:53,821 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 537 transitions. [2020-09-25 05:16:53,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:16:53,821 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 537 transitions. [2020-09-25 05:16:53,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 05:16:53,825 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:53,825 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] [2020-09-25 05:16:53,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:16:53,826 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:53,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:53,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1074637363, now seen corresponding path program 1 times [2020-09-25 05:16:53,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:53,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965248946] [2020-09-25 05:16:53,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:53,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:55,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:55,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 05:16:55,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:55,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1652 [2020-09-25 05:16:55,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:55,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 05:16:55,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 05:16:55,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 05:16:55,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:16:55,828 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:55,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:55,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:56,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:56,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:56,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:56,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 05:16:56,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:56,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:56,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 05:16:56,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:56,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:56,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:56,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:56,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:56,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:56,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:56,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:56,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:56,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:56,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:56,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:56,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:56,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:56,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:56,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:56,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:56,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:56,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:56,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:56,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:56,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:56,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:56,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:56,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:56,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:56,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:56,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:56,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:56,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:56,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:16:56,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:56,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:56,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:56,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:56,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:56,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:56,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:56,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:56,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:56,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:56,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:56,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:56,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:56,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:56,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:56,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:56,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:56,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:56,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 05:16:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:56,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:56,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:56,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:16:56,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:56,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:16:56,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:56,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:56,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:16:56,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 36 [2020-09-25 05:16:56,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 05:16:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:56,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:56,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:56,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:56,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:56,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:56,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:56,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:56,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:56,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:56,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:56,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 05:16:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:56,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:56,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:56,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:56,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:56,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:16:56,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:56,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:16:56,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:56,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:56,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:56,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 05:16:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:56,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:56,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:56,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:56,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:56,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:56,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:56,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:56,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:56,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:56,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:56,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:56,344 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 05:16:56,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965248946] [2020-09-25 05:16:56,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:56,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:16:56,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782758841] [2020-09-25 05:16:56,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:16:56,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:56,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:16:56,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:16:56,347 INFO L87 Difference]: Start difference. First operand 478 states and 537 transitions. Second operand 9 states. [2020-09-25 05:16:56,893 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:16:59,440 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:16:59,801 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:17:00,197 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:17:00,607 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:17:00,922 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:17:01,245 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:17:01,568 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:17:02,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:17:02,861 INFO L93 Difference]: Finished difference Result 1313 states and 1579 transitions. [2020-09-25 05:17:02,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 05:17:02,862 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-25 05:17:02,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:17:02,877 INFO L225 Difference]: With dead ends: 1313 [2020-09-25 05:17:02,877 INFO L226 Difference]: Without dead ends: 945 [2020-09-25 05:17:02,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 05:17:02,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2020-09-25 05:17:03,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 841. [2020-09-25 05:17:03,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2020-09-25 05:17:03,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 967 transitions. [2020-09-25 05:17:03,052 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 967 transitions. Word has length 172 [2020-09-25 05:17:03,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:17:03,052 INFO L479 AbstractCegarLoop]: Abstraction has 841 states and 967 transitions. [2020-09-25 05:17:03,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:17:03,053 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 967 transitions. [2020-09-25 05:17:03,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 05:17:03,062 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:17:03,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:17:03,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:17:03,063 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:17:03,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:17:03,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1206135218, now seen corresponding path program 1 times [2020-09-25 05:17:03,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:17:03,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390916173] [2020-09-25 05:17:03,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:17:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:17:03,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:03,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:04,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:05,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:08,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:17:08,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 05:17:08,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:17:08,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 05:17:08,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:17:08,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:17:08,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:17:08,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 05:17:08,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:17:08,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:17:08,526 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:17:08,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:17:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:17:08,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:08,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:17:08,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:17:08,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:17:08,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 05:17:08,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:17:08,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:17:08,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:17:08,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:17:08,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:17:08,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:17:08,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:17:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:17:08,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:08,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:17:08,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:17:08,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:17:08,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:17:08,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:17:08,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:17:08,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:17:08,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:17:08,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:17:08,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:17:08,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:17:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:17:08,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:08,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:17:08,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:17:08,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:17:08,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:17:08,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:17:08,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:17:08,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:17:08,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:17:08,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:17:08,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:17:08,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:17:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:17:08,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:08,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:17:08,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:17:08,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:17:08,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:17:08,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:17:08,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:17:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:17:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:17:08,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:17:08,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:17:08,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:17:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:17:08,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:08,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:17:08,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:17:08,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:17:08,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:17:08,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:17:08,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:17:08,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:17:08,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:17:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:17:08,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:17:08,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 05:17:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:17:08,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:08,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:17:08,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:17:08,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:17:08,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:17:08,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:17:08,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:17:08,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:17:08,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:17:08,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:17:08,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:17:08,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:17:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:17:08,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:08,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:17:08,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:17:08,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:17:08,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:17:08,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:17:08,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:17:08,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:17:08,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 05:17:08,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:17:08,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:17:08,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 05:17:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:17:08,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:08,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:17:08,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:17:08,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:17:08,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:17:08,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:17:08,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:17:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:17:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:17:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:17:08,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:17:08,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 05:17:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:17:08,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:08,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:17:08,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:17:08,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:17:08,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:17:08,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:17:08,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:17:08,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:17:08,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:17:08,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:17:08,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:17:08,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 05:17:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:17:08,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:17:08,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:17:08,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:17:08,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:17:08,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:17:08,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:17:08,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:17:08,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:17:08,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:17:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:17:08,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:17:08,769 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 05:17:08,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390916173] [2020-09-25 05:17:08,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:17:08,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:17:08,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793014791] [2020-09-25 05:17:08,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:17:08,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:17:08,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:17:08,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:17:08,772 INFO L87 Difference]: Start difference. First operand 841 states and 967 transitions. Second operand 6 states. [2020-09-25 05:17:09,316 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:17:11,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:17:11,838 INFO L93 Difference]: Finished difference Result 1939 states and 2336 transitions. [2020-09-25 05:17:11,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:17:11,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-09-25 05:17:11,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:17:11,848 INFO L225 Difference]: With dead ends: 1939 [2020-09-25 05:17:11,848 INFO L226 Difference]: Without dead ends: 1208 [2020-09-25 05:17:11,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:17:11,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-09-25 05:17:11,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1115. [2020-09-25 05:17:11,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2020-09-25 05:17:11,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1272 transitions. [2020-09-25 05:17:11,998 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1272 transitions. Word has length 177 [2020-09-25 05:17:11,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:17:11,999 INFO L479 AbstractCegarLoop]: Abstraction has 1115 states and 1272 transitions. [2020-09-25 05:17:11,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:17:11,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1272 transitions. [2020-09-25 05:17:12,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 05:17:12,004 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:17:12,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:17:12,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:17:12,004 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:17:12,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:17:12,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1555840203, now seen corresponding path program 1 times [2020-09-25 05:17:12,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:17:12,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836372326] [2020-09-25 05:17:12,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:17:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:17:12,070 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:17:12,070 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:17:12,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:17:12,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:17:12 BoogieIcfgContainer [2020-09-25 05:17:12,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:17:12,118 INFO L168 Benchmark]: Toolchain (without parser) took 44881.63 ms. Allocated memory was 139.5 MB in the beginning and 712.5 MB in the end (delta: 573.0 MB). Free memory was 100.7 MB in the beginning and 428.6 MB in the end (delta: -327.9 MB). Peak memory consumption was 245.2 MB. Max. memory is 7.1 GB. [2020-09-25 05:17:12,119 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:17:12,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.58 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 171.9 MB in the end (delta: -71.8 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2020-09-25 05:17:12,128 INFO L168 Benchmark]: Boogie Preprocessor took 130.28 ms. Allocated memory is still 203.4 MB. Free memory was 171.9 MB in the beginning and 167.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:17:12,129 INFO L168 Benchmark]: RCFGBuilder took 1354.87 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 167.1 MB in the beginning and 172.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-09-25 05:17:12,129 INFO L168 Benchmark]: TraceAbstraction took 42647.61 ms. Allocated memory was 237.0 MB in the beginning and 712.5 MB in the end (delta: 475.5 MB). Free memory was 172.4 MB in the beginning and 428.6 MB in the end (delta: -256.1 MB). Peak memory consumption was 219.4 MB. Max. memory is 7.1 GB. [2020-09-25 05:17:12,144 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.58 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 171.9 MB in the end (delta: -71.8 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.28 ms. Allocated memory is still 203.4 MB. Free memory was 171.9 MB in the beginning and 167.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1354.87 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 167.1 MB in the beginning and 172.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 42647.61 ms. Allocated memory was 237.0 MB in the beginning and 712.5 MB in the end (delta: 475.5 MB). Free memory was 172.4 MB in the beginning and 428.6 MB in the end (delta: -256.1 MB). Peak memory consumption was 219.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 619]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L188] int pumpRunning = 0; [L189] int systemActive = 1; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L827] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L445] int splverifierCounter ; [L446] int tmp ; [L447] int tmp___0 ; [L448] int tmp___1 ; [L449] int tmp___2 ; [L452] splverifierCounter = 0 [L454] COND TRUE 1 [L456] COND TRUE splverifierCounter < 4 [L462] tmp = __VERIFIER_nondet_int() [L464] COND TRUE \read(tmp) [L466] CALL waterRise() [L530] COND TRUE waterLevel < 2 [L531] waterLevel = waterLevel + 1 [L466] RET waterRise() [L472] tmp___0 = __VERIFIER_nondet_int() [L474] COND FALSE !(\read(tmp___0)) [L482] tmp___2 = __VERIFIER_nondet_int() [L484] COND FALSE !(\read(tmp___2)) [L488] tmp___1 = __VERIFIER_nondet_int() [L490] COND TRUE \read(tmp___1) [L492] CALL stopSystem() [L432] COND FALSE !(\read(pumpRunning)) [L439] systemActive = 0 [L492] RET stopSystem() [L499] CALL timeShift() [L196] COND FALSE !(\read(pumpRunning)) [L203] COND FALSE !(\read(systemActive)) [L211] CALL __utac_acc__Specification3_spec__1() [L625] int tmp ; [L626] int tmp___0 ; [L627] int tmp___1 ; [L631] CALL, EXPR isMethaneLevelCritical() [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); [L631] RET, EXPR isMethaneLevelCritical() [L631] tmp = isMethaneLevelCritical() [L633] COND FALSE !(\read(tmp)) [L637] CALL, EXPR getWaterLevel() [L583] int retValue_acc ; [L586] retValue_acc = waterLevel [L587] return (retValue_acc); [L637] RET, EXPR getWaterLevel() [L637] tmp___0 = getWaterLevel() [L639] COND TRUE tmp___0 == 2 [L641] CALL, EXPR isPumpRunning() [L346] int retValue_acc ; [L349] retValue_acc = pumpRunning [L350] return (retValue_acc); [L641] RET, EXPR isPumpRunning() [L641] tmp___1 = isPumpRunning() [L643] COND FALSE !(\read(tmp___1)) [L647] CALL __automaton_fail() [L619] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 670 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 42.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1454 SDtfs, 2076 SDslu, 1001 SDs, 0 SdLazy, 3154 SolverSat, 665 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1115occurred 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: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 346 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 24.3s InterpolantComputationTime, 996 NumberOfCodeBlocks, 996 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 814 ConstructedInterpolants, 0 QuantifiedInterpolants, 321230 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...