/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=SMALLEST --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_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:02:39,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:02:39,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:02:39,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:02:39,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:02:39,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:02:39,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:02:39,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:02:39,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:02:39,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:02:39,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:02:39,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:02:39,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:02:39,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:02:39,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:02:39,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:02:39,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:02:39,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:02:39,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:02:39,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:02:39,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:02:39,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:02:39,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:02:39,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:02:39,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:02:39,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:02:39,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:02:39,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:02:39,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:02:39,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:02:39,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:02:39,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:02:39,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:02:39,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:02:39,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:02:39,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:02:39,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:02:39,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:02:39,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:02:39,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:02:39,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:02:39,893 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 [2020-09-24 18:02:39,921 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:02:39,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:02:39,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:02:39,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:02:39,923 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:02:39,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:02:39,923 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:02:39,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:02:39,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:02:39,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:02:39,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:02:39,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:02:39,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:02:39,924 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:02:39,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:02:39,925 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:02:39,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:02:39,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:02:39,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:02:39,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:02:39,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:02:39,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:02:39,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:02:39,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:02:39,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:02:39,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:02:39,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:02:39,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:02:39,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:02:39,928 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:02:40,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:02:40,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:02:40,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:02:40,455 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:02:40,456 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:02:40,458 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-09-24 18:02:40,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72b25191c/b190385bc7b64e5c90ef075cfbfb4e6e/FLAG5a01438e5 [2020-09-24 18:02:41,174 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:02:41,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-09-24 18:02:41,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72b25191c/b190385bc7b64e5c90ef075cfbfb4e6e/FLAG5a01438e5 [2020-09-24 18:02:41,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72b25191c/b190385bc7b64e5c90ef075cfbfb4e6e [2020-09-24 18:02:41,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:02:41,467 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:02:41,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:02:41,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:02:41,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:02:41,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:02:41" (1/1) ... [2020-09-24 18:02:41,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561fcc9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:41, skipping insertion in model container [2020-09-24 18:02:41,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:02:41" (1/1) ... [2020-09-24 18:02:41,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:02:41,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:02:42,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:02:42,155 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:02:42,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:02:42,311 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:02:42,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:42 WrapperNode [2020-09-24 18:02:42,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:02:42,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:02:42,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:02:42,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:02:42,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:42" (1/1) ... [2020-09-24 18:02:42,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:42" (1/1) ... [2020-09-24 18:02:42,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:42" (1/1) ... [2020-09-24 18:02:42,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:42" (1/1) ... [2020-09-24 18:02:42,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:42" (1/1) ... [2020-09-24 18:02:42,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:42" (1/1) ... [2020-09-24 18:02:42,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:42" (1/1) ... [2020-09-24 18:02:42,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:02:42,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:02:42,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:02:42,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:02:42,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:42" (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 [2020-09-24 18:02:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:02:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:02:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:02:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:02:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:02:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:02:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:02:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:02:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:02:42,538 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:02:42,538 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:02:42,538 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:02:42,538 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:02:42,538 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:02:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:02:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:02:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-09-24 18:02:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-09-24 18:02:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-09-24 18:02:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-09-24 18:02:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-09-24 18:02:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-09-24 18:02:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:02:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-09-24 18:02:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-09-24 18:02:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:02:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:02:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:02:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:02:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:02:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:02:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:02:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:02:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:02:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:02:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:02:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:02:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:02:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:02:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:02:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:02:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:02:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:02:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:02:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:02:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:02:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:02:42,544 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:02:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:02:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:02:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:02:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:02:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:02:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:02:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:02:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:02:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:02:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:02:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:02:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:02:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:02:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:02:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:02:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:02:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:02:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:02:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:02:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:02:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:02:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:02:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:02:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:02:42,549 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:02:42,549 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:02:42,549 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:02:42,549 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:02:42,549 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:02:42,549 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:02:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:02:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:02:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:02:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:02:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:02:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:02:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:02:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:02:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:02:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:02:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:02:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-09-24 18:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-09-24 18:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-09-24 18:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-09-24 18:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-09-24 18:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-09-24 18:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-09-24 18:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-09-24 18:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:02:43,998 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:02:43,999 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:02:44,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:02:44 BoogieIcfgContainer [2020-09-24 18:02:44,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:02:44,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:02:44,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:02:44,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:02:44,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:02:41" (1/3) ... [2020-09-24 18:02:44,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e31c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:02:44, skipping insertion in model container [2020-09-24 18:02:44,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:42" (2/3) ... [2020-09-24 18:02:44,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e31c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:02:44, skipping insertion in model container [2020-09-24 18:02:44,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:02:44" (3/3) ... [2020-09-24 18:02:44,021 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-09-24 18:02:44,034 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:02:44,050 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:02:44,076 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:02:44,123 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:02:44,124 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:02:44,127 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:02:44,127 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:02:44,128 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:02:44,128 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:02:44,128 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:02:44,129 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:02:44,171 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-24 18:02:44,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 18:02:44,212 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:44,217 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:44,218 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:44,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:44,228 INFO L82 PathProgramCache]: Analyzing trace with hash 103979020, now seen corresponding path program 1 times [2020-09-24 18:02:44,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:44,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1348508786] [2020-09-24 18:02:44,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:44,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:45,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:47,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:49,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:49,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-24 18:02:49,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:02:49,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 18:02:49,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:49,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:49,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-09-24 18:02:49,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:49,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:02:50,195 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 18:02:50,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:02:50,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 18:02:50,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:50,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 18:02:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:02:50,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:02:50,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:50,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 18:02:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:02:50,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 18:02:50,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:50,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:50,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:02:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:02:50,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:50,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:50,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 18:02:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:02:50,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:50,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:50,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 18:02:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:02:50,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:02:50,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:50,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:50,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 18:02:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:02:50,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:50,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:50,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 18:02:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:02:50,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:50,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:50,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:50,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 18:02:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:02:50,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:02:50,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:50,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:50,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 18:02:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:50,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:50,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:50,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:50,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 18:02:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:50,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:50,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:50,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:50,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 18:02:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:50,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:50,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:50,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-24 18:02:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:50,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:50,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:50,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:50,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-24 18:02:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:50,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:50,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:50,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:50,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:50,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:50,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:50,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:50,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:50,862 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 18:02:50,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1348508786] [2020-09-24 18:02:50,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:50,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:02:50,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721284314] [2020-09-24 18:02:50,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:02:50,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:50,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:02:50,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:02:50,907 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 5 states. [2020-09-24 18:02:53,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:53,561 INFO L93 Difference]: Finished difference Result 688 states and 831 transitions. [2020-09-24 18:02:53,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:02:53,565 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-09-24 18:02:53,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:53,589 INFO L225 Difference]: With dead ends: 688 [2020-09-24 18:02:53,590 INFO L226 Difference]: Without dead ends: 433 [2020-09-24 18:02:53,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:02:53,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-24 18:02:53,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 375. [2020-09-24 18:02:53,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-24 18:02:53,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 422 transitions. [2020-09-24 18:02:53,780 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 422 transitions. Word has length 235 [2020-09-24 18:02:53,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:53,782 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 422 transitions. [2020-09-24 18:02:53,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:02:53,782 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 422 transitions. [2020-09-24 18:02:53,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-09-24 18:02:53,788 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:53,789 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:53,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:02:53,789 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:53,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:53,790 INFO L82 PathProgramCache]: Analyzing trace with hash 820894340, now seen corresponding path program 1 times [2020-09-24 18:02:53,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:53,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872805964] [2020-09-24 18:02:53,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:54,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:56,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:58,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:58,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 18:02:58,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:02:58,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-24 18:02:58,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:58,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:58,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-24 18:02:58,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:02:58,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,260 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 18:02:59,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:02:59,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 18:02:59,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:59,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 18:02:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:02:59,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:59,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:59,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 18:02:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:02:59,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 18:02:59,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:59,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:02:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:02:59,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:59,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:59,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 18:02:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:02:59,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:59,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:59,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:59,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 18:02:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:02:59,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:59,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 18:02:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:02:59,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:59,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:59,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 18:02:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:02:59,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:59,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:59,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 18:02:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:02:59,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:59,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:59,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 18:02:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:59,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:59,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:59,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 18:02:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:59,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:59,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 18:02:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:59,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:59,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:59,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 18:02:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:59,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:59,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:59,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 18:02:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:59,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:59,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:59,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:59,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:59,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:59,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:59,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:59,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:59,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:59,631 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 18:02:59,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872805964] [2020-09-24 18:02:59,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:59,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:02:59,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293554292] [2020-09-24 18:02:59,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:02:59,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:59,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:02:59,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:02:59,636 INFO L87 Difference]: Start difference. First operand 375 states and 422 transitions. Second operand 6 states. [2020-09-24 18:03:00,832 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 18:03:03,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:03,059 INFO L93 Difference]: Finished difference Result 597 states and 694 transitions. [2020-09-24 18:03:03,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:03:03,059 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 236 [2020-09-24 18:03:03,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:03,066 INFO L225 Difference]: With dead ends: 597 [2020-09-24 18:03:03,066 INFO L226 Difference]: Without dead ends: 416 [2020-09-24 18:03:03,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:03:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-24 18:03:03,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 365. [2020-09-24 18:03:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-24 18:03:03,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 409 transitions. [2020-09-24 18:03:03,132 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 409 transitions. Word has length 236 [2020-09-24 18:03:03,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:03,133 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 409 transitions. [2020-09-24 18:03:03,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:03:03,133 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 409 transitions. [2020-09-24 18:03:03,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-24 18:03:03,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:03,138 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:03:03,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:03:03,138 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:03,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:03,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1884524892, now seen corresponding path program 1 times [2020-09-24 18:03:03,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:03,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3248973] [2020-09-24 18:03:03,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:03,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:04,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-09-24 18:03:08,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:03:08,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4818 [2020-09-24 18:03:08,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 18:03:08,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-24 18:03:08,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-09-24 18:03:08,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,397 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 18:03:08,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:03:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:03:08,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-24 18:03:08,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-24 18:03:08,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 18:03:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:03:08,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:03:08,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:03:08,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 18:03:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:03:08,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 18:03:08,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 18:03:08,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:03:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:03:08,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:08,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 18:03:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:03:08,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:08,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 18:03:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:03:08,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:08,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 18:03:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:03:08,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:08,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 18:03:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:03:08,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:08,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 18:03:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:03:08,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:03:08,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 18:03:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:08,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:08,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:03:08,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 18:03:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:08,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:08,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:08,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:08,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:03:08,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 18:03:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:08,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:08,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:08,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 18:03:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:08,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:03:08,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 18:03:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:08,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:08,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:08,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:08,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:08,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:08,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:08,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:08,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:08,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:08,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:08,989 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 18:03:08,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3248973] [2020-09-24 18:03:08,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:03:08,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:03:08,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704372448] [2020-09-24 18:03:08,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:03:08,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:03:08,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:03:08,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:03:08,993 INFO L87 Difference]: Start difference. First operand 365 states and 409 transitions. Second operand 6 states. [2020-09-24 18:03:09,605 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 18:03:13,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:13,650 INFO L93 Difference]: Finished difference Result 864 states and 1019 transitions. [2020-09-24 18:03:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:03:13,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 246 [2020-09-24 18:03:13,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:13,658 INFO L225 Difference]: With dead ends: 864 [2020-09-24 18:03:13,658 INFO L226 Difference]: Without dead ends: 651 [2020-09-24 18:03:13,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:03:13,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-09-24 18:03:13,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 568. [2020-09-24 18:03:13,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2020-09-24 18:03:13,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 652 transitions. [2020-09-24 18:03:13,781 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 652 transitions. Word has length 246 [2020-09-24 18:03:13,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:13,786 INFO L479 AbstractCegarLoop]: Abstraction has 568 states and 652 transitions. [2020-09-24 18:03:13,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:03:13,786 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 652 transitions. [2020-09-24 18:03:13,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-24 18:03:13,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:13,797 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:03:13,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:03:13,797 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:13,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:13,797 INFO L82 PathProgramCache]: Analyzing trace with hash 544054283, now seen corresponding path program 1 times [2020-09-24 18:03:13,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:13,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [142386321] [2020-09-24 18:03:13,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:13,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:15,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:15,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-09-24 18:03:15,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:15,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2083 [2020-09-24 18:03:15,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 18:03:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-09-24 18:03:15,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-09-24 18:03:15,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:16,434 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 18:03:16,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:03:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:16,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:16,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:16,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:03:16,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:16,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-24 18:03:16,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:16,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:16,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:16,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-24 18:03:16,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:03:16,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 18:03:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:16,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:16,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:16,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:03:16,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:16,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:03:16,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:16,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:16,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:16,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:03:16,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:16,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 18:03:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:16,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:16,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:16,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:03:16,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:16,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 18:03:16,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:16,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:16,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:16,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 18:03:16,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:03:17,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:03:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:17,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:17,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:17,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:03:17,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:17,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:17,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:17,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:17,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:17,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:17,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:03:17,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 18:03:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:17,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:17,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:17,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:03:17,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:17,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:17,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:17,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:17,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:17,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 18:03:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:17,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:17,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:17,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:03:17,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:17,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:17,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:17,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:17,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:17,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:17,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:17,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 18:03:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:17,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:17,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:17,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:03:17,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:17,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:17,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:17,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:17,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:17,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 18:03:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:17,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:17,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:17,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:03:17,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:17,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:03:17,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:17,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:17,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:17,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:17,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:17,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 18:03:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:17,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:17,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:17,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:03:17,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:17,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:17,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:17,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:17,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:17,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 18:03:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:17,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:17,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:17,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:17,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:17,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:03:17,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:17,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:17,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:17,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:03:17,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:17,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 18:03:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:17,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:17,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:17,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:03:17,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:17,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:03:17,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:17,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:17,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:17,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:03:17,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:03:17,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 18:03:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:17,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:17,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:17,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:03:17,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:17,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:03:17,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:17,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:03:17,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:17,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-24 18:03:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:17,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:17,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:17,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:17,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:17,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:03:17,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:17,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:03:17,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:03:17,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:17,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-09-24 18:03:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:17,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:17,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:17,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:17,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:17,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 18:03:17,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:17,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:03:17,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:03:17,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:03:17,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:17,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-09-24 18:03:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:03:17,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:03:17,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:03:17,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:03:17,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:03:17,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:03:17,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:03:17,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:03:17,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:03:17,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:03:17,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:03:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 18:03:17,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [142386321] [2020-09-24 18:03:17,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:03:17,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 18:03:17,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127399725] [2020-09-24 18:03:17,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 18:03:17,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:03:17,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 18:03:17,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:03:17,437 INFO L87 Difference]: Start difference. First operand 568 states and 652 transitions. Second operand 11 states. [2020-09-24 18:03:18,278 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 18:03:22,351 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-24 18:03:22,856 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-09-24 18:03:23,372 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 18:03:23,907 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 18:03:24,385 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-24 18:03:24,842 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-24 18:03:25,353 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-24 18:03:28,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:03:28,108 INFO L93 Difference]: Finished difference Result 1540 states and 1898 transitions. [2020-09-24 18:03:28,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 18:03:28,113 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2020-09-24 18:03:28,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:03:28,125 INFO L225 Difference]: With dead ends: 1540 [2020-09-24 18:03:28,125 INFO L226 Difference]: Without dead ends: 1124 [2020-09-24 18:03:28,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2020-09-24 18:03:28,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2020-09-24 18:03:28,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 995. [2020-09-24 18:03:28,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-09-24 18:03:28,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1170 transitions. [2020-09-24 18:03:28,377 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1170 transitions. Word has length 255 [2020-09-24 18:03:28,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:03:28,378 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1170 transitions. [2020-09-24 18:03:28,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 18:03:28,378 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1170 transitions. [2020-09-24 18:03:28,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-09-24 18:03:28,388 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:03:28,388 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:03:28,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:03:28,389 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:03:28,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:03:28,390 INFO L82 PathProgramCache]: Analyzing trace with hash -522870887, now seen corresponding path program 1 times [2020-09-24 18:03:28,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:03:28,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336050101] [2020-09-24 18:03:28,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:03:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:03:28,498 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:03:28,498 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:03:28,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:03:28,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:03:28 BoogieIcfgContainer [2020-09-24 18:03:28,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:03:28,565 INFO L168 Benchmark]: Toolchain (without parser) took 47103.04 ms. Allocated memory was 140.0 MB in the beginning and 739.8 MB in the end (delta: 599.8 MB). Free memory was 101.8 MB in the beginning and 597.3 MB in the end (delta: -495.5 MB). Peak memory consumption was 104.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:03:28,568 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-24 18:03:28,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 844.71 ms. Allocated memory was 140.0 MB in the beginning and 206.0 MB in the end (delta: 66.1 MB). Free memory was 100.9 MB in the beginning and 171.4 MB in the end (delta: -70.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:03:28,578 INFO L168 Benchmark]: Boogie Preprocessor took 132.51 ms. Allocated memory is still 206.0 MB. Free memory was 171.4 MB in the beginning and 166.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-24 18:03:28,579 INFO L168 Benchmark]: RCFGBuilder took 1562.25 ms. Allocated memory was 206.0 MB in the beginning and 235.4 MB in the end (delta: 29.4 MB). Free memory was 166.6 MB in the beginning and 159.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:03:28,579 INFO L168 Benchmark]: TraceAbstraction took 44553.35 ms. Allocated memory was 235.4 MB in the beginning and 739.8 MB in the end (delta: 504.4 MB). Free memory was 159.0 MB in the beginning and 597.3 MB in the end (delta: -438.3 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:03:28,592 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 844.71 ms. Allocated memory was 140.0 MB in the beginning and 206.0 MB in the end (delta: 66.1 MB). Free memory was 100.9 MB in the beginning and 171.4 MB in the end (delta: -70.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.51 ms. Allocated memory is still 206.0 MB. Free memory was 171.4 MB in the beginning and 166.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1562.25 ms. Allocated memory was 206.0 MB in the beginning and 235.4 MB in the end (delta: 29.4 MB). Free memory was 166.6 MB in the beginning and 159.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44553.35 ms. Allocated memory was 235.4 MB in the beginning and 739.8 MB in the end (delta: 504.4 MB). Free memory was 159.0 MB in the beginning and 597.3 MB in the end (delta: -438.3 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1022]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L510] int __SELECTED_FEATURE_base ; [L511] int __SELECTED_FEATURE_highWaterSensor ; [L512] int __SELECTED_FEATURE_lowWaterSensor ; [L513] int __SELECTED_FEATURE_methaneQuery ; [L514] int __SELECTED_FEATURE_methaneAlarm ; [L515] int __SELECTED_FEATURE_stopCommand ; [L516] int __SELECTED_FEATURE_startCommand ; [L517] int __GUIDSL_ROOT_PRODUCTION ; [L605] int pumpRunning = 0; [L606] int systemActive = 1; [L1027] int waterLevel = 1; [L1028] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] CALL select_helpers() [L968] __GUIDSL_ROOT_PRODUCTION = 1 [L492] RET select_helpers() [L493] CALL select_features() [L953] __SELECTED_FEATURE_base = 1 [L954] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L954] RET, EXPR select_one() [L954] __SELECTED_FEATURE_highWaterSensor = select_one() [L955] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L955] RET, EXPR select_one() [L955] __SELECTED_FEATURE_lowWaterSensor = select_one() [L956] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L956] RET, EXPR select_one() [L956] __SELECTED_FEATURE_methaneQuery = select_one() [L957] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L957] RET, EXPR select_one() [L957] __SELECTED_FEATURE_methaneAlarm = select_one() [L958] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L958] RET, EXPR select_one() [L958] __SELECTED_FEATURE_stopCommand = select_one() [L959] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L959] RET, EXPR select_one() [L959] __SELECTED_FEATURE_startCommand = select_one() [L493] RET select_features() [L494] CALL, EXPR valid_product() [L973] int retValue_acc ; [L976] retValue_acc = __SELECTED_FEATURE_base [L977] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 [L530] COND TRUE 1 [L532] COND TRUE splverifierCounter < 4 [L538] tmp = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp) [L542] CALL waterRise() [L1045] COND TRUE waterLevel < 2 [L1046] waterLevel = waterLevel + 1 [L542] RET waterRise() [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___2)) [L570] tmp___1 = __VERIFIER_nondet_int() [L572] COND TRUE \read(tmp___1) [L573] COND TRUE \read(__SELECTED_FEATURE_stopCommand) [L575] CALL stopSystem() [L917] COND FALSE !(\read(pumpRunning)) [L924] systemActive = 0 [L575] RET stopSystem() [L585] CALL timeShift() [L613] COND FALSE !(\read(pumpRunning)) [L620] COND FALSE !(\read(systemActive)) [L628] CALL __utac_acc__Specification3_spec__1() [L985] int tmp ; [L986] int tmp___0 ; [L987] int tmp___1 ; [L991] CALL, EXPR isMethaneLevelCritical() [L1066] int retValue_acc ; [L1069] retValue_acc = methaneLevelCritical [L1070] return (retValue_acc); [L991] RET, EXPR isMethaneLevelCritical() [L991] tmp = isMethaneLevelCritical() [L993] COND FALSE !(\read(tmp)) [L997] CALL, EXPR getWaterLevel() [L1098] int retValue_acc ; [L1101] retValue_acc = waterLevel [L1102] return (retValue_acc); [L997] RET, EXPR getWaterLevel() [L997] tmp___0 = getWaterLevel() [L999] COND TRUE tmp___0 == 2 [L1001] CALL, EXPR isPumpRunning() [L831] int retValue_acc ; [L834] retValue_acc = pumpRunning [L835] return (retValue_acc); [L1001] RET, EXPR isPumpRunning() [L1001] tmp___1 = isPumpRunning() [L1003] COND FALSE !(\read(tmp___1)) [L1007] CALL __automaton_fail() [L1022] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 730 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 44.3s, OverallIterations: 5, TraceHistogramMax: 6, AutomataDifference: 21.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1372 SDtfs, 2904 SDslu, 902 SDs, 0 SdLazy, 4010 SolverSat, 1149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=995occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 321 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 20.9s InterpolantComputationTime, 1232 NumberOfCodeBlocks, 1232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 968 ConstructedInterpolants, 0 QuantifiedInterpolants, 514260 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 480/480 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...