/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:42:09,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:42:09,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:42:09,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:42:09,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:42:09,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:42:09,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:42:09,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:42:09,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:42:09,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:42:09,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:42:09,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:42:09,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:42:09,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:42:09,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:42:09,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:42:09,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:42:09,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:42:09,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:42:09,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:42:09,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:42:09,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:42:09,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:42:09,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:42:09,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:42:09,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:42:09,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:42:09,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:42:09,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:42:09,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:42:09,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:42:09,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:42:09,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:42:09,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:42:09,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:42:09,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:42:09,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:42:09,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:42:09,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:42:09,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:42:09,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:42:09,890 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 00:42:09,944 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:42:09,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:42:09,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:42:09,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:42:09,950 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:42:09,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:42:09,950 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:42:09,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:42:09,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:42:09,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:42:09,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:42:09,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:42:09,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:42:09,952 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:42:09,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:42:09,952 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:42:09,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:42:09,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:42:09,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:42:09,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:42:09,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:42:09,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:42:09,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:42:09,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:42:09,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:42:09,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:42:09,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:42:09,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:42:09,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:42:09,956 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:42:10,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:42:10,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:42:10,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:42:10,458 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:42:10,458 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:42:10,460 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-09-25 00:42:10,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc844c385/db306c5822304102972dc87035bb5302/FLAGca1cb96bb [2020-09-25 00:42:11,255 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:42:11,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-09-25 00:42:11,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc844c385/db306c5822304102972dc87035bb5302/FLAGca1cb96bb [2020-09-25 00:42:11,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc844c385/db306c5822304102972dc87035bb5302 [2020-09-25 00:42:11,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:42:11,470 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:42:11,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:42:11,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:42:11,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:42:11,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:42:11" (1/1) ... [2020-09-25 00:42:11,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2748618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:11, skipping insertion in model container [2020-09-25 00:42:11,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:42:11" (1/1) ... [2020-09-25 00:42:11,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:42:11,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:42:12,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:42:12,020 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:42:12,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:42:12,190 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:42:12,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:12 WrapperNode [2020-09-25 00:42:12,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:42:12,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:42:12,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:42:12,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:42:12,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:12" (1/1) ... [2020-09-25 00:42:12,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:12" (1/1) ... [2020-09-25 00:42:12,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:12" (1/1) ... [2020-09-25 00:42:12,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:12" (1/1) ... [2020-09-25 00:42:12,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:12" (1/1) ... [2020-09-25 00:42:12,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:12" (1/1) ... [2020-09-25 00:42:12,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:12" (1/1) ... [2020-09-25 00:42:12,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:42:12,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:42:12,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:42:12,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:42:12,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:12" (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 00:42:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:42:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:42:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:42:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:42:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:42:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:42:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:42:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 00:42:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:42:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:42:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:42:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:42:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:42:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:42:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 00:42:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:42:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:42:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:42:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:42:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:42:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:42:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:42:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:42:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:42:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:42:12,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:42:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:42:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:42:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:42:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:42:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:42:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:42:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:42:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:42:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:42:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:42:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:42:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:42:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:42:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:42:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:42:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:42:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:42:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:42:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:42:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:42:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:42:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 00:42:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:42:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:42:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:42:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:42:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:42:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:42:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:42:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:42:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:42:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:42:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 00:42:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:42:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:42:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:42:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:42:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:42:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:42:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:42:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:42:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:42:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:42:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:42:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:42:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:42:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:42:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:42:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:42:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:42:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:42:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:42:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:42:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:42:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:42:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:42:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:42:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:42:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:42:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:42:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:42:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:42:13,553 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:42:13,554 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:42:13,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:42:13 BoogieIcfgContainer [2020-09-25 00:42:13,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:42:13,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:42:13,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:42:13,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:42:13,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:42:11" (1/3) ... [2020-09-25 00:42:13,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292a8148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:42:13, skipping insertion in model container [2020-09-25 00:42:13,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:12" (2/3) ... [2020-09-25 00:42:13,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292a8148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:42:13, skipping insertion in model container [2020-09-25 00:42:13,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:42:13" (3/3) ... [2020-09-25 00:42:13,570 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-09-25 00:42:13,582 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:42:13,594 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:42:13,616 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:42:13,646 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:42:13,646 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:42:13,646 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:42:13,646 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:42:13,647 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:42:13,647 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:42:13,647 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:42:13,647 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:42:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-25 00:42:13,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 00:42:13,691 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:13,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:13,693 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:13,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:13,699 INFO L82 PathProgramCache]: Analyzing trace with hash 459580304, now seen corresponding path program 1 times [2020-09-25 00:42:13,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:13,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061339222] [2020-09-25 00:42:13,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:14,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:14,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:16,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:19,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:19,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 00:42:19,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:42:19,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 00:42:19,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 00:42:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:19,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:42:19,650 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:19,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:19,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:19,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:19,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:19,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:19,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 00:42:19,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:19,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:19,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:19,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:19,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 00:42:19,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:19,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:19,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:19,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:19,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:19,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:19,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:19,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:19,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:19,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:19,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:19,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:19,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:19,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:19,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:19,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:19,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:19,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:19,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:20,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:20,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:20,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:20,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:42:20,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:20,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:20,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:20,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:20,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:20,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:20,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:20,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:20,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:20,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:20,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:20,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:20,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:20,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:20,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:20,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:20,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:42:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:20,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:20,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:20,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:20,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:20,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:20,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:20,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:20,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:20,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:20,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:42:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:20,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:20,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:20,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:20,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:20,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:20,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:20,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:20,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:20,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:20,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:20,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:42:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:20,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:20,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:20,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:20,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:20,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:20,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:20,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:20,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:20,121 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 00:42:20,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061339222] [2020-09-25 00:42:20,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:20,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:42:20,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949181227] [2020-09-25 00:42:20,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:42:20,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:20,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:42:20,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:42:20,171 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2020-09-25 00:42:21,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:21,478 INFO L93 Difference]: Finished difference Result 394 states and 471 transitions. [2020-09-25 00:42:21,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:42:21,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 00:42:21,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:21,514 INFO L225 Difference]: With dead ends: 394 [2020-09-25 00:42:21,514 INFO L226 Difference]: Without dead ends: 254 [2020-09-25 00:42:21,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:42:21,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-25 00:42:21,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 214. [2020-09-25 00:42:21,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-25 00:42:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 229 transitions. [2020-09-25 00:42:21,702 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 229 transitions. Word has length 153 [2020-09-25 00:42:21,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:21,703 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 229 transitions. [2020-09-25 00:42:21,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:42:21,703 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 229 transitions. [2020-09-25 00:42:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 00:42:21,708 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:21,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:21,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:42:21,709 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:21,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:21,710 INFO L82 PathProgramCache]: Analyzing trace with hash 418244228, now seen corresponding path program 1 times [2020-09-25 00:42:21,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:21,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389112407] [2020-09-25 00:42:21,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:23,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:26,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:26,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 00:42:26,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:42:26,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 00:42:26,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:26,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:26,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 00:42:26,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:42:26,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:27,152 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:27,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:27,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 00:42:27,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:27,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:27,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:27,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:27,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:27,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:27,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:27,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:27,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:27,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:27,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:27,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:27,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:27,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:27,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:27,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:27,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:27,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 00:42:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:27,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:27,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:27,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:42:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:27,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:27,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:27,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:42:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:27,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:27,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:27,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:27,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:27,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:27,374 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 00:42:27,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389112407] [2020-09-25 00:42:27,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:27,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:42:27,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606446751] [2020-09-25 00:42:27,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:42:27,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:27,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:42:27,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:42:27,381 INFO L87 Difference]: Start difference. First operand 214 states and 229 transitions. Second operand 4 states. [2020-09-25 00:42:27,946 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:42:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:28,558 INFO L93 Difference]: Finished difference Result 298 states and 332 transitions. [2020-09-25 00:42:28,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:42:28,559 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 00:42:28,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:28,562 INFO L225 Difference]: With dead ends: 298 [2020-09-25 00:42:28,563 INFO L226 Difference]: Without dead ends: 237 [2020-09-25 00:42:28,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:42:28,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-09-25 00:42:28,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 204. [2020-09-25 00:42:28,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-09-25 00:42:28,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 216 transitions. [2020-09-25 00:42:28,605 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 216 transitions. Word has length 154 [2020-09-25 00:42:28,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:28,606 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 216 transitions. [2020-09-25 00:42:28,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:42:28,607 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 216 transitions. [2020-09-25 00:42:28,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 00:42:28,614 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:28,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:28,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:42:28,615 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:28,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:28,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1459194471, now seen corresponding path program 1 times [2020-09-25 00:42:28,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:28,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236252635] [2020-09-25 00:42:28,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:28,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:28,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:31,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:31,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 00:42:31,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:42:31,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2800 [2020-09-25 00:42:31,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 00:42:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:42:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:31,784 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:31,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:31,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:31,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:31,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:31,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:31,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 00:42:31,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:31,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:31,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:31,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:31,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:31,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:31,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:31,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:31,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:31,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:31,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:31,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:31,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:31,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:31,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:31,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:31,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:31,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:31,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:31,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:31,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:31,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:31,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:31,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:31,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:31,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:31,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:31,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:31,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:31,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:31,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:31,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:31,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:31,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:31,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:31,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:31,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:31,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:31,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:31,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:31,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:31,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:31,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:31,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:42:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:31,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:31,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:31,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:42:31,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:31,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:31,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:31,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:31,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:31,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 00:42:31,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:31,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:42:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:31,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:31,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:31,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:31,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:31,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:31,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:31,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:31,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:31,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:31,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:31,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 00:42:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:31,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:31,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:31,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:31,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:31,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:31,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:31,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:31,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 00:42:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:31,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:31,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:31,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:31,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:31,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:31,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:31,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:31,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:31,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:31,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:31,997 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 00:42:31,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236252635] [2020-09-25 00:42:31,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:31,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:42:31,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804593609] [2020-09-25 00:42:31,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:42:31,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:32,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:42:32,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:42:32,000 INFO L87 Difference]: Start difference. First operand 204 states and 216 transitions. Second operand 5 states. [2020-09-25 00:42:32,606 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:42:34,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:34,001 INFO L93 Difference]: Finished difference Result 454 states and 523 transitions. [2020-09-25 00:42:34,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:42:34,002 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 00:42:34,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:34,008 INFO L225 Difference]: With dead ends: 454 [2020-09-25 00:42:34,013 INFO L226 Difference]: Without dead ends: 360 [2020-09-25 00:42:34,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:42:34,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-09-25 00:42:34,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 282. [2020-09-25 00:42:34,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-25 00:42:34,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 305 transitions. [2020-09-25 00:42:34,112 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 305 transitions. Word has length 167 [2020-09-25 00:42:34,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:34,114 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 305 transitions. [2020-09-25 00:42:34,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:42:34,114 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 305 transitions. [2020-09-25 00:42:34,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 00:42:34,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:34,121 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] [2020-09-25 00:42:34,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:42:34,121 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:34,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:34,121 INFO L82 PathProgramCache]: Analyzing trace with hash -651029142, now seen corresponding path program 1 times [2020-09-25 00:42:34,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:34,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553984794] [2020-09-25 00:42:34,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:34,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:35,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:35,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 00:42:35,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:35,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1626 [2020-09-25 00:42:35,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:42:35,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 00:42:35,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 00:42:35,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:36,193 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:36,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:36,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:36,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:36,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:36,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:36,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-09-25 00:42:36,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:36,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:36,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:36,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 00:42:36,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:36,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:36,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:36,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:36,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:36,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:36,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:36,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:36,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:36,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:36,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:36,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:36,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:36,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:36,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:36,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:36,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:36,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:36,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:36,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:36,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:36,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:42:36,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:36,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:36,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:36,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:36,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:36,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 00:42:36,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:36,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:36,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:36,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:36,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:42:36,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:36,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:36,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:36,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:36,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:36,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:36,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:36,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:36,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:36,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:36,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:36,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:42:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:36,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:36,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:36,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:42:36,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:36,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:42:36,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:36,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:42:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:36,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:36,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:36,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:36,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:36,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:36,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:36,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:36,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:36,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:36,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:36,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 00:42:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:36,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:36,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:36,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:36,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:36,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:36,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:36,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:36,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:36,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:36,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:36,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:42:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:36,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:36,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:36,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:36,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:36,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 00:42:36,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:36,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:42:36,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:36,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:42:36,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 00:42:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:36,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:36,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:36,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:36,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:36,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:36,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:36,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:36,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:36,851 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 00:42:36,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553984794] [2020-09-25 00:42:36,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:36,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:42:36,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503021603] [2020-09-25 00:42:36,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:42:36,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:36,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:42:36,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:42:36,858 INFO L87 Difference]: Start difference. First operand 282 states and 305 transitions. Second operand 9 states. [2020-09-25 00:42:37,414 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:42:38,900 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:42:39,242 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:42:39,593 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:42:39,923 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:42:40,218 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:42:40,544 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:42:40,831 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:42:41,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:41,310 INFO L93 Difference]: Finished difference Result 688 states and 810 transitions. [2020-09-25 00:42:41,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 00:42:41,311 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-25 00:42:41,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:41,317 INFO L225 Difference]: With dead ends: 688 [2020-09-25 00:42:41,317 INFO L226 Difference]: Without dead ends: 516 [2020-09-25 00:42:41,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:42:41,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-09-25 00:42:41,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 437. [2020-09-25 00:42:41,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-09-25 00:42:41,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 487 transitions. [2020-09-25 00:42:41,380 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 487 transitions. Word has length 170 [2020-09-25 00:42:41,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:41,381 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 487 transitions. [2020-09-25 00:42:41,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:42:41,381 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 487 transitions. [2020-09-25 00:42:41,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 00:42:41,384 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:41,385 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] [2020-09-25 00:42:41,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:42:41,385 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:41,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:41,386 INFO L82 PathProgramCache]: Analyzing trace with hash -720155991, now seen corresponding path program 1 times [2020-09-25 00:42:41,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:41,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241892973] [2020-09-25 00:42:41,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:41,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:42,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:43,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:46,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:46,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 00:42:46,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:42:46,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 00:42:46,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:46,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:42:46,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 00:42:46,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 00:42:46,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:46,776 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:46,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:46,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:46,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:46,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:46,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:46,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 00:42:46,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:46,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:46,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:46,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:46,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:46,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:46,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:46,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:46,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:46,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:46,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:46,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:46,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:46,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:46,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:46,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:46,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:46,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:46,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:46,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:46,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:46,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:46,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:46,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:46,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:46,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:46,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:46,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:46,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:46,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:46,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:46,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:46,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:46,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:46,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:46,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:46,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:46,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:46,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:46,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:46,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:46,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:46,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:46,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:46,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:46,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:46,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:42:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:46,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:46,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:46,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:42:46,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:46,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:46,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:46,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:46,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:46,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:42:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:46,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:46,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:46,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:42:46,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:46,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:42:46,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:46,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:46,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:46,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:42:46,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:46,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 00:42:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:46,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:46,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:46,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:46,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:46,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:46,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:46,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:46,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:46,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:46,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:46,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 00:42:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:46,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:46,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:46,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:46,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:46,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:46,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:46,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:46,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:46,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 00:42:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:46,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:46,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:46,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:46,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:46,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:46,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:46,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:46,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:46,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:46,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:46,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 00:42:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:46,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:47,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:47,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:47,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:47,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:42:47,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:47,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:42:47,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:47,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:47,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:47,134 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 00:42:47,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241892973] [2020-09-25 00:42:47,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:47,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:42:47,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330965001] [2020-09-25 00:42:47,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:42:47,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:47,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:42:47,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:42:47,138 INFO L87 Difference]: Start difference. First operand 437 states and 487 transitions. Second operand 10 states. [2020-09-25 00:42:48,409 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:42:48,700 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:42:50,023 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:42:50,349 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:42:50,705 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:42:51,340 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-09-25 00:42:51,718 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:42:52,090 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:42:52,440 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:42:52,732 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:42:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:53,386 INFO L93 Difference]: Finished difference Result 889 states and 1047 transitions. [2020-09-25 00:42:53,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 00:42:53,387 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-09-25 00:42:53,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:53,393 INFO L225 Difference]: With dead ends: 889 [2020-09-25 00:42:53,393 INFO L226 Difference]: Without dead ends: 699 [2020-09-25 00:42:53,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2020-09-25 00:42:53,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-09-25 00:42:53,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 592. [2020-09-25 00:42:53,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-25 00:42:53,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 664 transitions. [2020-09-25 00:42:53,483 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 664 transitions. Word has length 175 [2020-09-25 00:42:53,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:53,484 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 664 transitions. [2020-09-25 00:42:53,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:42:53,484 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 664 transitions. [2020-09-25 00:42:53,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 00:42:53,488 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:53,488 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] [2020-09-25 00:42:53,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:42:53,489 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:53,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:53,489 INFO L82 PathProgramCache]: Analyzing trace with hash 232069563, now seen corresponding path program 1 times [2020-09-25 00:42:53,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:53,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715424241] [2020-09-25 00:42:53,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:42:53,568 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:42:53,568 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:42:53,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:42:53,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:42:53 BoogieIcfgContainer [2020-09-25 00:42:53,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:42:53,605 INFO L168 Benchmark]: Toolchain (without parser) took 42138.60 ms. Allocated memory was 141.6 MB in the beginning and 674.8 MB in the end (delta: 533.2 MB). Free memory was 103.4 MB in the beginning and 543.2 MB in the end (delta: -439.9 MB). Peak memory consumption was 93.3 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:53,606 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 00:42:53,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.80 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 102.7 MB in the beginning and 172.1 MB in the end (delta: -69.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:53,608 INFO L168 Benchmark]: Boogie Preprocessor took 93.74 ms. Allocated memory is still 205.0 MB. Free memory was 172.1 MB in the beginning and 168.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:53,609 INFO L168 Benchmark]: RCFGBuilder took 1275.30 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 168.2 MB in the beginning and 175.9 MB in the end (delta: -7.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:53,610 INFO L168 Benchmark]: TraceAbstraction took 40040.09 ms. Allocated memory was 236.5 MB in the beginning and 674.8 MB in the end (delta: 438.3 MB). Free memory was 175.9 MB in the beginning and 543.2 MB in the end (delta: -367.4 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:53,614 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.80 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 102.7 MB in the beginning and 172.1 MB in the end (delta: -69.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.74 ms. Allocated memory is still 205.0 MB. Free memory was 172.1 MB in the beginning and 168.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1275.30 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 168.2 MB in the beginning and 175.9 MB in the end (delta: -7.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40040.09 ms. Allocated memory was 236.5 MB in the beginning and 674.8 MB in the end (delta: 438.3 MB). Free memory was 175.9 MB in the beginning and 543.2 MB in the end (delta: -367.4 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L790] int cleanupTimeShifts = 4; [L863] int retValue_acc ; [L864] int tmp ; [L868] FCALL select_helpers() [L869] FCALL select_features() [L870] CALL, EXPR valid_product() [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] return (retValue_acc); [L870] RET, EXPR valid_product() [L870] tmp = valid_product() [L872] COND TRUE \read(tmp) [L874] FCALL setup() [L875] CALL runTest() [L857] CALL test() [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 [L94] COND TRUE 1 [L96] COND TRUE splverifierCounter < 4 [L102] tmp = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp) [L106] CALL waterRise() [L324] COND TRUE waterLevel < 2 [L325] waterLevel = waterLevel + 1 [L106] RET waterRise() [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND TRUE \read(tmp___2) [L126] CALL startSystem() [L301] systemActive = 1 [L126] RET startSystem() [L141] CALL timeShift() [L165] COND FALSE !(\read(pumpRunning)) [L172] COND TRUE \read(systemActive) [L174] FCALL processEnvironment() [L180] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L345] int retValue_acc ; [L348] retValue_acc = methaneLevelCritical [L349] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L890] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 597 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 39.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 15.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1065 SDtfs, 1349 SDslu, 1507 SDs, 0 SdLazy, 3035 SolverSat, 409 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=592occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 337 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.1s InterpolantComputationTime, 994 NumberOfCodeBlocks, 994 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 814 ConstructedInterpolants, 0 QuantifiedInterpolants, 320054 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...