/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=0.1 --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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:52:38,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:52:38,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:52:38,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:52:38,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:52:38,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:52:38,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:52:38,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:52:38,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:52:38,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:52:38,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:52:38,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:52:38,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:52:38,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:52:38,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:52:38,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:52:38,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:52:38,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:52:38,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:52:38,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:52:38,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:52:38,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:52:38,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:52:38,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:52:38,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:52:38,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:52:38,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:52:38,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:52:38,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:52:38,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:52:38,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:52:38,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:52:38,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:52:38,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:52:38,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:52:38,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:52:38,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:52:38,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:52:38,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:52:38,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:52:38,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:52:38,461 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 09:52:38,494 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:52:38,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:52:38,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:52:38,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:52:38,496 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:52:38,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:52:38,497 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:52:38,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:52:38,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:52:38,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:52:38,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:52:38,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:52:38,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:52:38,498 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:52:38,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:52:38,498 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:52:38,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:52:38,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:52:38,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:52:38,499 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:52:38,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:52:38,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:52:38,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:52:38,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:52:38,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:52:38,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:52:38,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:52:38,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:52:38,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:52:38,501 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 09:52:38,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:52:38,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:52:38,992 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:52:38,994 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:52:38,996 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:52:38,997 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c [2020-09-25 09:52:39,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e4537d8c/12289c2fbffe4dbfa13b3b69556cccd3/FLAG0eca25979 [2020-09-25 09:52:39,751 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:52:39,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c [2020-09-25 09:52:39,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e4537d8c/12289c2fbffe4dbfa13b3b69556cccd3/FLAG0eca25979 [2020-09-25 09:52:39,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e4537d8c/12289c2fbffe4dbfa13b3b69556cccd3 [2020-09-25 09:52:39,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:52:39,989 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:52:39,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:52:39,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:52:39,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:52:39,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:52:39" (1/1) ... [2020-09-25 09:52:40,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:39, skipping insertion in model container [2020-09-25 09:52:40,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:52:39" (1/1) ... [2020-09-25 09:52:40,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:52:40,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:52:40,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:52:40,479 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:52:40,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:52:40,707 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:52:40,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:40 WrapperNode [2020-09-25 09:52:40,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:52:40,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:52:40,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:52:40,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:52:40,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:40" (1/1) ... [2020-09-25 09:52:40,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:40" (1/1) ... [2020-09-25 09:52:40,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:40" (1/1) ... [2020-09-25 09:52:40,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:40" (1/1) ... [2020-09-25 09:52:40,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:40" (1/1) ... [2020-09-25 09:52:40,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:40" (1/1) ... [2020-09-25 09:52:40,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:40" (1/1) ... [2020-09-25 09:52:40,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:52:40,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:52:40,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:52:40,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:52:40,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:40" (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 09:52:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:52:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:52:40,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:52:40,887 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:52:40,887 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:52:40,888 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:52:40,888 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:52:40,889 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 09:52:40,889 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:52:40,889 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:52:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:52:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:52:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:52:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:52:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:52:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:52:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:52:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:52:40,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:52:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:52:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:52:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:52:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:52:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:52:40,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:52:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:52:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:52:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:52:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:52:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:52:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:52:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:52:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:52:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:52:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:52:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:52:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:52:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:52:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:52:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:52:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:52:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:52:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:52:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:52:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:52:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:52:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:52:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:52:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:52:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:52:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:52:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:52:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:52:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:52:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:52:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:52:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:52:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:52:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:52:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:52:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 09:52:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:52:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:52:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:52:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:52:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:52:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:52:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:52:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:52:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:52:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:52:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:52:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:52:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:52:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:52:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:52:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:52:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:52:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:52:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:52:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:52:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:52:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:52:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:52:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:52:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:52:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:52:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:52:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:52:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:52:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:52:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:52:42,184 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:52:42,184 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:52:42,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:52:42 BoogieIcfgContainer [2020-09-25 09:52:42,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:52:42,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:52:42,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:52:42,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:52:42,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:52:39" (1/3) ... [2020-09-25 09:52:42,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b174032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:52:42, skipping insertion in model container [2020-09-25 09:52:42,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:40" (2/3) ... [2020-09-25 09:52:42,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b174032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:52:42, skipping insertion in model container [2020-09-25 09:52:42,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:52:42" (3/3) ... [2020-09-25 09:52:42,201 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2020-09-25 09:52:42,213 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:52:42,224 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:52:42,248 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:52:42,284 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:52:42,285 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:52:42,285 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:52:42,285 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:52:42,285 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:52:42,285 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:52:42,286 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:52:42,286 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:52:42,319 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states. [2020-09-25 09:52:42,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:52:42,337 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:42,339 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 09:52:42,339 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:42,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:42,348 INFO L82 PathProgramCache]: Analyzing trace with hash 970389308, now seen corresponding path program 1 times [2020-09-25 09:52:42,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:42,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823938529] [2020-09-25 09:52:42,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:42,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:43,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:44,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:52:47,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:52:47,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-09-25 09:52:47,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:52:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:52:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:52:47,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:52:48,478 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:48,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:48,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:48,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:48,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:48,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:48,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-25 09:52:48,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:48,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:48,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:48,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:48,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:52:48,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:48,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:48,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:48,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:48,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:48,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:48,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:48,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:48,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:48,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:48,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:48,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:48,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:48,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:48,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:48,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:48,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:48,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:48,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:48,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:48,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:48,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:48,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:48,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:48,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:48,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:48,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:48,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:48,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:48,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:48,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:52:48,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:48,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:48,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:48,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:48,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:48,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:48,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:48,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:48,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:48,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:48,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:48,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:48,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:48,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:48,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:48,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:52:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:48,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:48,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:48,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:48,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:52:48,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:48,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:48,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:48,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:48,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:52:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:48,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:48,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:48,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:48,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:48,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:48,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:48,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:48,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:48,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:48,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:48,996 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 09:52:48,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823938529] [2020-09-25 09:52:49,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:49,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:52:49,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451730118] [2020-09-25 09:52:49,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:52:49,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:49,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:52:49,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:52:49,038 INFO L87 Difference]: Start difference. First operand 309 states. Second operand 8 states. [2020-09-25 09:52:49,768 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:50,945 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:51,456 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:51,987 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:52,469 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:52,727 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:53,062 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:53,302 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:55,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:55,453 INFO L93 Difference]: Finished difference Result 642 states and 782 transitions. [2020-09-25 09:52:55,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:52:55,455 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:52:55,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:55,477 INFO L225 Difference]: With dead ends: 642 [2020-09-25 09:52:55,478 INFO L226 Difference]: Without dead ends: 444 [2020-09-25 09:52:55,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:52:55,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-09-25 09:52:55,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 398. [2020-09-25 09:52:55,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-09-25 09:52:55,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 445 transitions. [2020-09-25 09:52:55,635 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 445 transitions. Word has length 142 [2020-09-25 09:52:55,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:55,636 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 445 transitions. [2020-09-25 09:52:55,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:52:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 445 transitions. [2020-09-25 09:52:55,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:52:55,651 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:55,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:52:55,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:52:55,655 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:55,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:55,655 INFO L82 PathProgramCache]: Analyzing trace with hash 773839308, now seen corresponding path program 1 times [2020-09-25 09:52:55,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:55,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [387224264] [2020-09-25 09:52:55,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:55,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:55,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:57,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:00,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:00,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:00,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:53:00,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:53:00,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 09:53:00,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:00,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:53:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 09:53:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 09:53:00,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:01,134 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:53:01,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:53:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:01,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:01,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:01,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:53:01,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:01,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 09:53:01,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:01,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:01,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:53:01,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:01,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:53:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:01,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:01,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:01,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:01,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:01,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:01,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:01,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:01,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:01,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:01,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:01,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:01,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:53:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:01,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:01,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:01,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:01,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:01,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:01,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:01,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:01,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:01,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:53:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:01,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:01,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:01,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:01,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:01,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:53:01,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:01,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:01,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:01,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:01,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:01,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:01,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:53:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:01,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:01,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:01,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:01,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:01,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:01,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:01,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:01,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:01,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:53:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:01,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:01,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:01,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:53:01,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:01,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:53:01,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:01,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:01,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:01,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:01,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:53:01,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:01,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 09:53:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:01,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:01,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:01,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:01,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:01,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:01,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:01,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:01,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:01,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:01,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:01,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 09:53:01,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:53:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:01,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:01,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:01,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:01,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:01,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:53:01,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:01,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:01,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:53:01,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:01,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:01,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:01,607 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 09:53:01,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [387224264] [2020-09-25 09:53:01,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:53:01,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 09:53:01,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975748357] [2020-09-25 09:53:01,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:53:01,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:53:01,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:53:01,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:53:01,615 INFO L87 Difference]: Start difference. First operand 398 states and 445 transitions. Second operand 9 states. [2020-09-25 09:53:02,171 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:03,519 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:03,855 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:04,221 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:04,577 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:53:04,888 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:53:05,616 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:05,908 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:06,292 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:07,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:53:07,224 INFO L93 Difference]: Finished difference Result 889 states and 1095 transitions. [2020-09-25 09:53:07,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 09:53:07,225 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 09:53:07,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:53:07,241 INFO L225 Difference]: With dead ends: 889 [2020-09-25 09:53:07,242 INFO L226 Difference]: Without dead ends: 601 [2020-09-25 09:53:07,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 09:53:07,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2020-09-25 09:53:07,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 544. [2020-09-25 09:53:07,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-09-25 09:53:07,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 634 transitions. [2020-09-25 09:53:07,349 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 634 transitions. Word has length 148 [2020-09-25 09:53:07,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:53:07,350 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 634 transitions. [2020-09-25 09:53:07,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:53:07,350 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 634 transitions. [2020-09-25 09:53:07,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-25 09:53:07,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:07,356 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:53:07,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:53:07,356 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:07,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:07,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1604777254, now seen corresponding path program 1 times [2020-09-25 09:53:07,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:07,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521405252] [2020-09-25 09:53:07,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:07,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:07,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:07,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:07,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:08,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-09-25 09:53:12,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:53:12,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5128 [2020-09-25 09:53:12,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:53:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:53:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:53:12,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,947 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:53:12,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:53:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:13,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:13,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:13,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:53:13,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:13,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-09-25 09:53:13,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:13,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:13,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:53:13,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:13,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:53:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:13,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:13,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:13,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:13,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:13,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:13,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:13,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:13,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:13,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:13,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:13,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:13,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:53:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:13,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:13,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:13,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:13,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:13,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:13,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:13,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:13,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:13,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:13,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:13,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:13,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:53:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:13,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:13,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:13,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:13,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:13,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:53:13,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:13,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:13,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:13,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:13,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:53:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:13,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:13,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:13,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:13,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:13,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:53:13,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:13,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:13,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:13,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:13,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:53:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:13,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:13,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:13,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:53:13,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:13,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:53:13,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:13,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:13,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:13,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:13,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:53:13,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:13,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:53:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:13,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:13,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:13,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 09:53:13,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:13,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 09:53:13,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:13,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:13,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 09:53:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 09:53:13,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:13,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:13,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:13,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:13,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:53:13,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:13,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 09:53:13,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:13,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:13,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:13,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:13,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 09:53:13,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:13,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:13,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:13,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:13,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:13,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:13,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:13,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:13,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:13,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:13,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:13,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:13,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:13,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 09:53:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:13,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:13,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:13,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:13,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 09:53:13,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:53:13,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 09:53:13,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:13,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:13,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:53:13,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 09:53:13,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:53:13,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:13,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:13,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:14,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:14,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:53:14,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:14,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 09:53:14,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:14,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:53:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:53:14,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:14,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:53:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:14,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:14,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:14,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:53:14,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:14,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:53:14,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:14,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:14,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:14,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:14,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:14,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:53:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:14,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:14,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:14,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 09:53:14,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:14,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 09:53:14,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:14,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:14,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:14,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 09:53:14,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:14,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:14,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:53:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:14,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:14,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:14,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 09:53:14,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:14,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:14,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:14,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:14,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:14,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:14,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:53:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:14,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:14,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:14,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:14,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:14,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:14,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:14,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:14,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:14,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:14,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 09:53:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:14,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:14,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:14,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:53:14,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:14,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:14,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:14,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:14,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-25 09:53:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:14,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:14,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:14,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:14,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:14,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:14,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:14,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:14,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:14,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:14,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:14,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:14,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-25 09:53:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:14,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:14,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:14,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:14,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:14,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:14,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:14,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:14,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:14,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:14,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:14,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:14,327 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 09:53:14,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521405252] [2020-09-25 09:53:14,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:53:14,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 09:53:14,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115062917] [2020-09-25 09:53:14,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 09:53:14,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:53:14,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 09:53:14,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:53:14,333 INFO L87 Difference]: Start difference. First operand 544 states and 634 transitions. Second operand 13 states. [2020-09-25 09:53:15,107 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:16,252 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:16,557 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:16,954 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:53:17,321 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 09:53:17,726 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:53:18,124 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:53:18,451 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:53:19,205 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:53:19,606 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:53:19,996 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 09:53:20,434 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:20,923 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:21,282 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:24,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:53:24,480 INFO L93 Difference]: Finished difference Result 1655 states and 2197 transitions. [2020-09-25 09:53:24,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 09:53:24,481 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 237 [2020-09-25 09:53:24,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:53:24,491 INFO L225 Difference]: With dead ends: 1655 [2020-09-25 09:53:24,491 INFO L226 Difference]: Without dead ends: 1221 [2020-09-25 09:53:24,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=242, Invalid=814, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 09:53:24,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2020-09-25 09:53:24,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 991. [2020-09-25 09:53:24,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2020-09-25 09:53:24,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1164 transitions. [2020-09-25 09:53:24,640 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1164 transitions. Word has length 237 [2020-09-25 09:53:24,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:53:24,641 INFO L479 AbstractCegarLoop]: Abstraction has 991 states and 1164 transitions. [2020-09-25 09:53:24,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 09:53:24,641 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1164 transitions. [2020-09-25 09:53:24,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 09:53:24,646 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:24,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:53:24,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:53:24,647 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:24,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:24,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1688848761, now seen corresponding path program 1 times [2020-09-25 09:53:24,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:24,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668410636] [2020-09-25 09:53:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:24,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:24,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking...