/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:59:25,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:59:25,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:59:25,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:59:25,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:59:25,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:59:25,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:59:25,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:59:25,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:59:25,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:59:25,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:59:25,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:59:25,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:59:25,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:59:25,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:59:25,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:59:25,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:59:25,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:59:25,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:59:25,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:59:25,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:59:25,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:59:25,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:59:25,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:59:25,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:59:25,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:59:25,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:59:25,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:59:25,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:59:25,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:59:25,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:59:25,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:59:25,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:59:25,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:59:25,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:59:25,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:59:25,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:59:25,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:59:25,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:59:25,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:59:25,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:59:25,770 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 10:59:25,799 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:59:25,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:59:25,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:59:25,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:59:25,801 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:59:25,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:59:25,802 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:59:25,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:59:25,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:59:25,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:59:25,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:59:25,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:59:25,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:59:25,803 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:59:25,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:59:25,803 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:59:25,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:59:25,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:59:25,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:59:25,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:59:25,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:59:25,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:59:25,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:59:25,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:59:25,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:59:25,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:59:25,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:59:25,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:59:25,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:59:25,807 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:59:26,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:59:26,275 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:59:26,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:59:26,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:59:26,283 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:59:26,284 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c [2020-09-25 10:59:26,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2c0f0773/6628ad1c118c4d119bdd625aa03f2e14/FLAG9fca00d61 [2020-09-25 10:59:26,949 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:59:26,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c [2020-09-25 10:59:26,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2c0f0773/6628ad1c118c4d119bdd625aa03f2e14/FLAG9fca00d61 [2020-09-25 10:59:27,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2c0f0773/6628ad1c118c4d119bdd625aa03f2e14 [2020-09-25 10:59:27,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:59:27,212 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:59:27,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:59:27,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:59:27,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:59:27,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:59:27" (1/1) ... [2020-09-25 10:59:27,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d265cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:27, skipping insertion in model container [2020-09-25 10:59:27,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:59:27" (1/1) ... [2020-09-25 10:59:27,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:59:27,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:59:27,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:59:27,901 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:59:27,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:59:28,019 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:59:28,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:28 WrapperNode [2020-09-25 10:59:28,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:59:28,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:59:28,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:59:28,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:59:28,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:28" (1/1) ... [2020-09-25 10:59:28,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:28" (1/1) ... [2020-09-25 10:59:28,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:28" (1/1) ... [2020-09-25 10:59:28,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:28" (1/1) ... [2020-09-25 10:59:28,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:28" (1/1) ... [2020-09-25 10:59:28,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:28" (1/1) ... [2020-09-25 10:59:28,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:28" (1/1) ... [2020-09-25 10:59:28,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:59:28,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:59:28,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:59:28,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:59:28,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:59:28,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:59:28,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:59:28,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:59:28,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:59:28,232 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:59:28,232 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:59:28,232 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:59:28,232 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:59:28,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:59:28,233 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:59:28,233 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:59:28,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:59:28,233 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:59:28,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:59:28,234 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:59:28,234 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:59:28,234 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:59:28,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:59:28,234 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:59:28,235 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:59:28,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 10:59:28,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:59:28,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:59:28,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:59:28,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:59:28,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:59:28,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:59:28,236 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:59:28,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:59:28,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:59:28,237 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:59:28,237 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:59:28,237 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:59:28,237 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:59:28,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:59:28,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:59:28,238 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:59:28,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 10:59:28,238 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 10:59:28,238 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 10:59:28,238 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:59:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:59:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:59:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:59:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:59:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:59:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:59:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:59:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:59:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:59:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:59:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:59:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:59:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:59:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:59:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:59:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:59:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:59:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:59:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:59:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:59:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:59:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:59:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:59:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:59:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 10:59:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:59:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:59:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:59:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:59:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:59:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:59:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:59:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:59:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:59:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:59:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:59:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:59:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:59:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:59:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:59:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:59:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:59:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:59:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:59:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 10:59:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 10:59:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:59:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:59:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 10:59:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:59:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:59:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:59:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:59:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:59:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:59:29,336 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:59:29,336 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:59:29,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:59:29 BoogieIcfgContainer [2020-09-25 10:59:29,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:59:29,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:59:29,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:59:29,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:59:29,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:59:27" (1/3) ... [2020-09-25 10:59:29,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d52e1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:59:29, skipping insertion in model container [2020-09-25 10:59:29,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:28" (2/3) ... [2020-09-25 10:59:29,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d52e1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:59:29, skipping insertion in model container [2020-09-25 10:59:29,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:59:29" (3/3) ... [2020-09-25 10:59:29,353 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product32.cil.c [2020-09-25 10:59:29,364 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:59:29,374 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:59:29,395 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:59:29,426 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:59:29,426 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:59:29,426 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:59:29,426 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:59:29,427 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:59:29,427 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:59:29,427 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:59:29,427 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:59:29,454 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states. [2020-09-25 10:59:29,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 10:59:29,472 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:29,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:59:29,474 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:29,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:29,484 INFO L82 PathProgramCache]: Analyzing trace with hash -29194710, now seen corresponding path program 1 times [2020-09-25 10:59:29,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:29,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660996935] [2020-09-25 10:59:29,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:29,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:30,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:31,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:32,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:34,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:34,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:59:34,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:59:34,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 10:59:34,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:34,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:59:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 10:59:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 10:59:34,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:59:35,484 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:35,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:35,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:35,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:35,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:35,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:35,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-09-25 10:59:35,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:35,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:35,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:35,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:35,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:59:35,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:35,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:35,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:35,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:35,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:35,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:35,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:35,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:35,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:35,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:35,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:35,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:35,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:35,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:35,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:35,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:35,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:35,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:35,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:35,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:35,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:35,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:35,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:35,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:35,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:35,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:35,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:35,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:59:35,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:35,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:35,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:35,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:35,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:35,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:35,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:35,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:35,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:35,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:35,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:35,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:35,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:35,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:35,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:35,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:59:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:35,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:35,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:35,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:35,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:35,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:59:35,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:35,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:35,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:59:35,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:35,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:35,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:35,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:59:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:35,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:35,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:35,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:35,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:35,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:35,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:35,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:35,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:35,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:35,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:35,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:36,083 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 10:59:36,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660996935] [2020-09-25 10:59:36,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:36,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:59:36,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200493731] [2020-09-25 10:59:36,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:59:36,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:36,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:59:36,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:59:36,121 INFO L87 Difference]: Start difference. First operand 320 states. Second operand 8 states. [2020-09-25 10:59:36,780 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:37,946 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:38,299 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:38,658 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:39,047 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:39,391 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:39,750 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:40,084 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:42,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:42,263 INFO L93 Difference]: Finished difference Result 648 states and 797 transitions. [2020-09-25 10:59:42,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:59:42,266 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 10:59:42,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:42,289 INFO L225 Difference]: With dead ends: 648 [2020-09-25 10:59:42,289 INFO L226 Difference]: Without dead ends: 449 [2020-09-25 10:59:42,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:59:42,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2020-09-25 10:59:42,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 402. [2020-09-25 10:59:42,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 10:59:42,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 457 transitions. [2020-09-25 10:59:42,450 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 457 transitions. Word has length 142 [2020-09-25 10:59:42,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:42,452 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 457 transitions. [2020-09-25 10:59:42,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:59:42,452 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 457 transitions. [2020-09-25 10:59:42,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 10:59:42,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:42,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:59:42,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:59:42,461 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:42,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:42,461 INFO L82 PathProgramCache]: Analyzing trace with hash 677940431, now seen corresponding path program 1 times [2020-09-25 10:59:42,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:42,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038874338] [2020-09-25 10:59:42,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:42,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:42,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:43,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:47,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:47,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 10:59:47,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:59:47,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 10:59:47,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:47,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:47,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:59:47,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 10:59:47,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 10:59:47,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:47,841 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:47,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:47,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:48,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:48,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:48,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:48,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 10:59:48,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:48,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:48,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:48,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:48,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:59:48,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:48,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:48,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:48,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:48,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:48,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:48,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:48,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:48,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:48,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:48,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:48,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:48,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:48,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:48,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:48,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:48,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:48,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:48,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:48,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:48,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:48,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:48,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:48,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:48,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:48,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:48,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:48,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:48,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:48,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:48,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:48,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:59:48,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:48,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:48,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:48,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:48,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:48,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:48,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:48,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:48,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:48,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:48,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:48,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:48,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:48,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:48,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:48,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 10:59:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:48,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:48,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:48,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:59:48,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:48,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:59:48,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:48,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:59:48,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:48,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 10:59:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:48,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:48,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:48,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:48,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:48,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:48,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:48,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:48,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:48,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:48,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:48,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:59:48,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:59:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:48,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:48,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:48,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:48,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:48,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:48,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:48,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:48,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:48,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:48,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:48,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:59:48,298 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 10:59:48,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038874338] [2020-09-25 10:59:48,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:48,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:59:48,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085291796] [2020-09-25 10:59:48,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:59:48,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:48,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:59:48,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:59:48,303 INFO L87 Difference]: Start difference. First operand 402 states and 457 transitions. Second operand 5 states. [2020-09-25 10:59:48,804 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:51,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:51,426 INFO L93 Difference]: Finished difference Result 1066 states and 1297 transitions. [2020-09-25 10:59:51,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:59:51,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 10:59:51,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:51,436 INFO L225 Difference]: With dead ends: 1066 [2020-09-25 10:59:51,436 INFO L226 Difference]: Without dead ends: 774 [2020-09-25 10:59:51,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:59:51,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2020-09-25 10:59:51,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 669. [2020-09-25 10:59:51,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-09-25 10:59:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 775 transitions. [2020-09-25 10:59:51,580 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 775 transitions. Word has length 148 [2020-09-25 10:59:51,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:51,581 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 775 transitions. [2020-09-25 10:59:51,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:59:51,582 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 775 transitions. [2020-09-25 10:59:51,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 10:59:51,588 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:51,588 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] [2020-09-25 10:59:51,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:59:51,589 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:51,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:51,589 INFO L82 PathProgramCache]: Analyzing trace with hash -101785791, now seen corresponding path program 1 times [2020-09-25 10:59:51,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:51,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843577647] [2020-09-25 10:59:51,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:51,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:51,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:56,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:56,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 10:59:56,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:59:56,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 10:59:56,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:56,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:56,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 10:59:56,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:59:56,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 10:59:56,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:59:57,140 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:57,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:57,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:57,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:57,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:57,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-09-25 10:59:57,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:57,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:59:57,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:57,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:57,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:57,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:57,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:57,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:57,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:57,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:57,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:57,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:57,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:59:57,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:57,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:57,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:57,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:57,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:57,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:57,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:57,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:57,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:57,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:57,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:57,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:57,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:57,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:59:57,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:57,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:57,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:57,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:57,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:57,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:57,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:57,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:57,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:57,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:59:57,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:57,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:57,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:57,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 10:59:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:57,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:57,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:59:57,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:57,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:59:57,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:57,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:57,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:57,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:57,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:59:57,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:57,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:59:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:57,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:57,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:59:57,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:57,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:59:57,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:57,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:57,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:57,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:57,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:59:57,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:57,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:59:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:57,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:57,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:59:57,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:59:57,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 10:59:57,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:57,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:59:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:59:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:59:57,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:57,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:59:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:57,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:57,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:59:57,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:57,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 10:59:57,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:57,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:57,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:59:57,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:59:57,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:59:57,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:57,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:59:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:57,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:57,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:57,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:57,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:57,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:57,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:57,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:57,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:57,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 10:59:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:57,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:57,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:57,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:57,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:57,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:57,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:57,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:57,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:57,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:57,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 10:59:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:57,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:57,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:57,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:57,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:57,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:59:57,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:57,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:57,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:59:57,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:57,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:57,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:58,026 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 10:59:58,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843577647] [2020-09-25 10:59:58,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:58,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 10:59:58,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225684781] [2020-09-25 10:59:58,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:59:58,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:58,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:59:58,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:59:58,032 INFO L87 Difference]: Start difference. First operand 669 states and 775 transitions. Second operand 11 states. [2020-09-25 10:59:58,785 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:00,177 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:00,519 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:00:00,860 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:01,178 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 11:00:01,502 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:00:02,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:00:02,031 INFO L93 Difference]: Finished difference Result 1073 states and 1315 transitions. [2020-09-25 11:00:02,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 11:00:02,033 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 174 [2020-09-25 11:00:02,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:00:02,034 INFO L225 Difference]: With dead ends: 1073 [2020-09-25 11:00:02,034 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:00:02,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2020-09-25 11:00:02,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:00:02,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:00:02,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:00:02,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:00:02,040 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2020-09-25 11:00:02,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:00:02,040 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:00:02,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 11:00:02,041 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:00:02,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:00:02,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:00:02,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:00:02,272 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:02,445 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:02,614 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:02,772 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:02,937 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:03,065 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-25 11:00:03,226 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:03,383 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:03,545 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:03,707 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:03,864 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:03,986 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 7 [2020-09-25 11:00:04,162 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:04,319 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:04,477 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:04,627 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:04,753 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 7 [2020-09-25 11:00:04,909 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:05,060 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:05,210 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:05,364 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:05,520 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:05,682 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:05,840 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:06,001 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:06,163 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:06,317 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:06,472 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:06,621 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:06,774 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:06,933 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:07,086 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:07,410 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 11:00:07,718 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-25 11:00:08,040 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 11:00:08,348 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-25 11:00:08,669 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 11:00:08,837 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:08,975 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:09,141 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:09,294 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:09,447 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:09,596 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:09,750 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:09,903 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:10,062 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:10,220 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:10,383 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:10,540 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:10,699 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:10,855 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:11,003 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:11,157 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:11,314 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:11,466 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:11,620 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:11,779 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:11,927 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:12,080 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:12,416 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 11:00:12,661 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 11:00:12,927 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 11:00:13,076 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:13,341 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 11:00:13,608 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 11:00:13,856 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 11:00:14,013 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:14,163 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:14,315 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:14,485 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:14,643 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:14,801 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:14,976 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:15,129 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:15,278 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:15,430 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:15,588 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:15,691 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 7 [2020-09-25 11:00:16,031 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 11:00:16,278 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 11:00:16,544 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 11:00:16,694 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:16,960 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 11:00:17,225 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 11:00:17,472 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 11:00:17,631 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:17,785 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:17,942 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:18,095 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:18,247 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:18,396 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:18,553 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:18,713 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:18,866 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:19,018 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:19,169 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187