/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_spec1_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:12:03,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:12:03,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:12:03,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:12:03,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:12:03,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:12:03,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:12:03,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:12:03,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:12:03,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:12:03,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:12:03,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:12:03,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:12:03,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:12:03,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:12:03,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:12:03,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:12:03,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:12:03,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:12:03,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:12:03,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:12:03,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:12:03,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:12:03,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:12:03,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:12:03,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:12:03,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:12:03,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:12:03,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:12:03,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:12:03,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:12:03,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:12:03,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:12:03,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:12:03,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:12:03,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:12:03,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:12:03,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:12:03,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:12:03,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:12:03,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:12:03,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:12:03,645 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:12:03,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:12:03,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:12:03,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:12:03,649 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:12:03,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:12:03,649 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:12:03,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:12:03,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:12:03,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:12:03,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:12:03,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:12:03,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:12:03,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:12:03,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:12:03,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:12:03,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:12:03,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:12:03,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:12:03,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:12:03,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:12:03,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:12:03,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:12:03,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:12:03,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:12:03,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:12:03,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:12:03,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:12:03,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:12:03,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:12:04,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:12:04,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:12:04,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:12:04,138 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:12:04,139 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:12:04,140 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product27.cil.c [2020-09-25 14:12:04,238 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10ab1e073/59b8d213cb0c4aa2b2c77dd843159a6b/FLAG7c6a562ed [2020-09-25 14:12:04,875 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:12:04,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product27.cil.c [2020-09-25 14:12:04,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10ab1e073/59b8d213cb0c4aa2b2c77dd843159a6b/FLAG7c6a562ed [2020-09-25 14:12:05,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10ab1e073/59b8d213cb0c4aa2b2c77dd843159a6b [2020-09-25 14:12:05,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:12:05,136 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:12:05,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:12:05,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:12:05,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:12:05,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:12:05" (1/1) ... [2020-09-25 14:12:05,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:05, skipping insertion in model container [2020-09-25 14:12:05,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:12:05" (1/1) ... [2020-09-25 14:12:05,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:12:05,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:12:05,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:12:05,706 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:12:05,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:12:05,843 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:12:05,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:05 WrapperNode [2020-09-25 14:12:05,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:12:05,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:12:05,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:12:05,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:12:05,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:05" (1/1) ... [2020-09-25 14:12:05,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:05" (1/1) ... [2020-09-25 14:12:05,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:05" (1/1) ... [2020-09-25 14:12:05,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:05" (1/1) ... [2020-09-25 14:12:05,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:05" (1/1) ... [2020-09-25 14:12:05,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:05" (1/1) ... [2020-09-25 14:12:05,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:05" (1/1) ... [2020-09-25 14:12:05,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:12:05,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:12:05,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:12:05,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:12:05,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:12:06,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:12:06,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:12:06,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:12:06,056 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:12:06,056 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:12:06,056 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:12:06,057 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:12:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:12:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:12:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:12:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:12:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:12:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:12:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:12:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:12:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:12:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:12:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:12:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:12:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:12:06,061 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:12:06,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:12:06,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:12:06,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:12:06,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:12:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:12:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:12:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:12:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:12:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:12:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:12:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:12:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:12:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:12:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:12:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:12:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:12:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:12:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:12:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:12:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:12:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:12:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:12:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:12:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:12:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:12:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:12:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:12:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:12:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:12:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:12:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:12:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:12:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:12:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:12:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:12:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:12:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:12:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:12:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:12:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:12:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:12:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:12:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:12:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:12:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:12:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:12:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:12:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:12:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:12:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:12:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:12:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:12:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:12:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:12:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:12:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:12:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:12:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:12:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:12:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:12:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:12:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:12:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:12:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:12:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:12:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:12:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:12:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:12:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:12:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:12:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:12:07,227 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:12:07,227 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:12:07,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:12:07 BoogieIcfgContainer [2020-09-25 14:12:07,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:12:07,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:12:07,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:12:07,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:12:07,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:12:05" (1/3) ... [2020-09-25 14:12:07,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5f0a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:12:07, skipping insertion in model container [2020-09-25 14:12:07,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:12:05" (2/3) ... [2020-09-25 14:12:07,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5f0a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:12:07, skipping insertion in model container [2020-09-25 14:12:07,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:12:07" (3/3) ... [2020-09-25 14:12:07,245 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product27.cil.c [2020-09-25 14:12:07,257 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:12:07,269 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:12:07,292 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:12:07,330 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:12:07,330 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:12:07,330 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:12:07,331 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:12:07,331 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:12:07,331 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:12:07,331 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:12:07,331 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:12:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-25 14:12:07,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:12:07,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:12:07,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:12:07,380 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:12:07,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:12:07,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1724716998, now seen corresponding path program 1 times [2020-09-25 14:12:07,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:12:07,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651880244] [2020-09-25 14:12:07,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:12:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:07,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:08,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:09,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:10,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:12,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:12,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:12:12,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:12:12,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 14:12:12,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:12,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:12,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:12:12,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:12:12,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:12:12,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 14:12:13,302 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:12:13,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:12:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:13,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:13,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:13,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:12:13,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:13,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 14:12:13,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:13,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:12:13,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:13,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:12:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:13,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:13,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:13,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:13,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:13,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:12:13,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:13,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:13,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:13,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:13,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:13,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:13,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:12:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:13,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:13,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:13,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:13,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:13,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:12:13,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:13,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:13,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:13,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:13,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:13,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:12:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:13,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:13,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:13,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:13,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:13,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:12:13,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:13,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:13,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:13,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:13,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:13,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:12:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:13,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:13,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:13,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:13,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:13,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:12:13,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:13,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:13,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:13,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:13,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:13,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:12:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:13,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:13,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:13,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:13,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:13,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:13,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:13,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:12:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:12:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:12:13,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:13,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:12:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:13,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:13,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:13,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:13,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:13,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:13,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:13,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:13,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:12:13,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:12:13,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:12:13,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:13,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:12:13,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651880244] [2020-09-25 14:12:13,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:12:13,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:12:13,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591275762] [2020-09-25 14:12:13,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:12:13,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:12:13,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:12:13,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:12:13,835 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 5 states. [2020-09-25 14:12:14,743 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:15,680 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:12:17,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:12:17,666 INFO L93 Difference]: Finished difference Result 690 states and 866 transitions. [2020-09-25 14:12:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:12:17,669 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 14:12:17,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:12:17,692 INFO L225 Difference]: With dead ends: 690 [2020-09-25 14:12:17,693 INFO L226 Difference]: Without dead ends: 506 [2020-09-25 14:12:17,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:12:17,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-09-25 14:12:17,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 424. [2020-09-25 14:12:17,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-09-25 14:12:17,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 481 transitions. [2020-09-25 14:12:17,872 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 481 transitions. Word has length 142 [2020-09-25 14:12:17,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:12:17,873 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 481 transitions. [2020-09-25 14:12:17,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:12:17,874 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 481 transitions. [2020-09-25 14:12:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 14:12:17,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:12:17,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:12:17,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:12:17,881 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:12:17,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:12:17,881 INFO L82 PathProgramCache]: Analyzing trace with hash 781341970, now seen corresponding path program 1 times [2020-09-25 14:12:17,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:12:17,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303894216] [2020-09-25 14:12:17,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:12:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:18,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:18,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:19,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:19,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:21,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:22,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:22,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:12:22,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:12:22,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 14:12:22,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:22,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:22,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:12:22,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:12:22,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 14:12:23,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 28 [2020-09-25 14:12:23,333 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:12:23,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:12:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:23,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:23,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:23,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:12:23,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 14:12:23,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:23,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:12:23,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:23,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:12:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:23,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:23,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:23,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:23,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:23,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:23,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:23,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:23,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:23,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:23,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:23,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:12:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:23,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:23,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:23,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:23,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:23,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:23,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:23,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:23,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:23,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:23,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:23,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:23,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:12:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:23,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:23,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:23,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:23,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:23,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:12:23,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:23,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:23,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:23,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:23,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:23,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:12:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:23,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:23,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:23,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:23,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:23,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:23,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:23,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:23,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:23,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:23,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:12:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:23,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:23,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:23,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:12:23,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:23,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:23,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:23,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:23,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:23,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:23,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:12:23,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:23,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:12:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:23,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:23,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:23,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:23,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:23,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:12:23,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:23,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:12:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:12:23,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:23,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:12:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:23,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:23,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:23,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:23,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:23,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:12:23,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:23,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:12:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:23,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:23,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:12:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:23,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:23,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:23,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:23,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:23,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:12:23,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:23,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:23,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:12:23,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:12:23,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:12:23,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:23,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:12:23,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303894216] [2020-09-25 14:12:23,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:12:23,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:12:23,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187069409] [2020-09-25 14:12:23,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:12:23,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:12:23,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:12:23,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:12:23,770 INFO L87 Difference]: Start difference. First operand 424 states and 481 transitions. Second operand 9 states. [2020-09-25 14:12:24,241 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:25,496 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:25,800 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:12:26,202 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:26,636 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:12:27,021 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:27,577 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:27,872 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:28,268 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:29,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:12:29,487 INFO L93 Difference]: Finished difference Result 1318 states and 1721 transitions. [2020-09-25 14:12:29,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:12:29,488 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 14:12:29,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:12:29,499 INFO L225 Difference]: With dead ends: 1318 [2020-09-25 14:12:29,500 INFO L226 Difference]: Without dead ends: 940 [2020-09-25 14:12:29,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:12:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2020-09-25 14:12:29,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 669. [2020-09-25 14:12:29,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-09-25 14:12:29,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 767 transitions. [2020-09-25 14:12:29,647 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 767 transitions. Word has length 151 [2020-09-25 14:12:29,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:12:29,647 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 767 transitions. [2020-09-25 14:12:29,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:12:29,648 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 767 transitions. [2020-09-25 14:12:29,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 14:12:29,651 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:12:29,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:12:29,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:12:29,652 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:12:29,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:12:29,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1897825968, now seen corresponding path program 1 times [2020-09-25 14:12:29,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:12:29,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792631195] [2020-09-25 14:12:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:12:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:29,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:29,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:30,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:32,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:32,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:12:32,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:12:32,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3082 [2020-09-25 14:12:32,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:32,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:12:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:12:32,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 14:12:32,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:12:33,123 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:12:33,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:12:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:33,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:33,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:33,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:12:33,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:33,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 14:12:33,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:33,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:12:33,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:33,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:12:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:33,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:33,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:33,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:33,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:33,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:33,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:33,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:33,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:33,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:12:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:33,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:33,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:33,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:33,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:33,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:12:33,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:33,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:33,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:33,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:33,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:33,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:33,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:12:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:33,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:33,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:33,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:33,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:33,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:12:33,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:33,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:33,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:33,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:33,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:33,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:33,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:12:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:33,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:33,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:33,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:33,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:33,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:33,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:33,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:33,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:33,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:33,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:33,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:12:33,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:12:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:33,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:33,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:33,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:12:33,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:33,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:12:33,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:33,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:33,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:33,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:33,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:12:33,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:33,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:12:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:33,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:33,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:33,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:33,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:12:33,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:12:33,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:12:33,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:33,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:33,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:12:33,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:12:33,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:12:33,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:33,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:12:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:33,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:33,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:33,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:33,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:33,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:33,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:33,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:33,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:33,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 14:12:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:33,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:33,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:33,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:33,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:33,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:33,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:33,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:33,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:33,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:33,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:33,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:12:33,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 14:12:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:33,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:33,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:33,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:33,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:33,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:12:33,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:33,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:33,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:12:33,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:33,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:33,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:33,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:12:33,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792631195] [2020-09-25 14:12:33,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:12:33,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:12:33,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400230783] [2020-09-25 14:12:33,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:12:33,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:12:33,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:12:33,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:12:33,618 INFO L87 Difference]: Start difference. First operand 669 states and 767 transitions. Second operand 10 states. [2020-09-25 14:12:34,084 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:35,401 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:36,006 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:12:36,326 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:36,648 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:12:36,987 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:12:37,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:12:37,200 INFO L93 Difference]: Finished difference Result 1173 states and 1420 transitions. [2020-09-25 14:12:37,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:12:37,201 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-09-25 14:12:37,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:12:37,203 INFO L225 Difference]: With dead ends: 1173 [2020-09-25 14:12:37,203 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:12:37,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:12:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:12:37,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:12:37,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:12:37,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:12:37,211 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 165 [2020-09-25 14:12:37,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:12:37,212 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:12:37,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:12:37,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:12:37,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:12:37,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:12:37,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:12:37,390 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:37,553 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:37,711 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:37,873 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:37,984 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 7 [2020-09-25 14:12:38,092 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 12 [2020-09-25 14:12:38,377 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 187 [2020-09-25 14:12:38,762 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 186 [2020-09-25 14:12:38,960 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 12 [2020-09-25 14:12:39,512 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:39,980 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 14:12:40,344 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:40,608 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:40,974 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:41,430 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:41,800 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 186 [2020-09-25 14:12:42,054 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:42,428 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 14:12:42,688 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:43,126 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:43,497 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 186 [2020-09-25 14:12:43,870 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 14:12:44,126 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 187 [2020-09-25 14:12:44,279 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:44,434 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:44,582 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:44,731 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:44,884 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:45,043 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:45,197 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:45,351 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:45,500 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:45,648 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:45,795 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:12:45,948 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:46,100 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:46,241 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:12:46,389 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:46,541 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:46,689 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:46,845 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:47,010 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:47,154 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:47,302 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:12:47,445 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:47,594 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:47,737 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:47,885 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:48,032 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:48,181 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:48,333 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:48,480 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:48,629 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:48,776 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:48,931 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:49,080 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:49,228 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:49,375 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:49,520 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:49,673 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:49,821 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:49,974 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:50,119 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:50,268 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:50,421 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:50,564 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:50,712 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:50,860 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:12:51,013 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:51,161 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:51,305 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:51,453 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:51,606 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:51,758 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:51,910 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:52,058 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:52,205 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:12:52,348 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:52,502 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:52,656 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:52,803 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:12:52,951 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:53,104 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:53,349 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 6 [2020-09-25 14:12:53,497 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:53,640 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:53,790 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:53,933 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:54,084 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:54,232 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:54,383 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:54,531 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:54,687 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:54,834 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:54,983 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:55,133 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:55,280 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:55,428 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:55,584 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:55,731 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:12:55,883 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:56,031 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:12:56,175 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:56,327 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:56,475 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:56,628 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:56,781 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:56,933 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:57,081 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:57,234 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:57,478 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 6 [2020-09-25 14:12:57,724 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 6 [2020-09-25 14:12:57,968 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 6 [2020-09-25 14:12:58,519 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 14:12:59,151 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:59,518 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 186