/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:49:34,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:49:34,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:49:35,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:49:35,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:49:35,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:49:35,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:49:35,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:49:35,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:49:35,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:49:35,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:49:35,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:49:35,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:49:35,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:49:35,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:49:35,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:49:35,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:49:35,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:49:35,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:49:35,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:49:35,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:49:35,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:49:35,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:49:35,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:49:35,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:49:35,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:49:35,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:49:35,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:49:35,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:49:35,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:49:35,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:49:35,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:49:35,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:49:35,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:49:35,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:49:35,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:49:35,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:49:35,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:49:35,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:49:35,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:49:35,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:49:35,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:49:35,133 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:49:35,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:49:35,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:49:35,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:49:35,135 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:49:35,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:49:35,135 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:49:35,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:49:35,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:49:35,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:49:35,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:49:35,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:49:35,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:49:35,137 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:49:35,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:49:35,137 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:49:35,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:49:35,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:49:35,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:49:35,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:49:35,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:49:35,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:49:35,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:49:35,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:49:35,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:49:35,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:49:35,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:49:35,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:49:35,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:49:35,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:49:35,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:49:35,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:49:35,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:49:35,681 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:49:35,683 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:49:35,684 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2020-09-25 09:49:35,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/403e638e9/46ebdd550f92480da19ab3625610d7e7/FLAGd581078a8 [2020-09-25 09:49:36,396 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:49:36,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2020-09-25 09:49:36,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/403e638e9/46ebdd550f92480da19ab3625610d7e7/FLAGd581078a8 [2020-09-25 09:49:36,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/403e638e9/46ebdd550f92480da19ab3625610d7e7 [2020-09-25 09:49:36,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:49:36,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:49:36,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:49:36,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:49:36,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:49:36,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:36" (1/1) ... [2020-09-25 09:49:36,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:36, skipping insertion in model container [2020-09-25 09:49:36,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:36" (1/1) ... [2020-09-25 09:49:36,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:49:36,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:49:37,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:49:37,210 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:49:37,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:49:37,535 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:49:37,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:37 WrapperNode [2020-09-25 09:49:37,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:49:37,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:49:37,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:49:37,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:49:37,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:37" (1/1) ... [2020-09-25 09:49:37,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:37" (1/1) ... [2020-09-25 09:49:37,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:37" (1/1) ... [2020-09-25 09:49:37,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:37" (1/1) ... [2020-09-25 09:49:37,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:37" (1/1) ... [2020-09-25 09:49:37,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:37" (1/1) ... [2020-09-25 09:49:37,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:37" (1/1) ... [2020-09-25 09:49:37,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:49:37,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:49:37,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:49:37,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:49:37,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:49:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:49:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:49:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:49:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:49:37,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:49:37,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:49:37,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:49:37,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:49:37,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:49:37,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:49:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:49:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:49:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:49:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:49:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:49:37,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:49:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:49:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:49:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:49:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:49:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:49:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:49:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:49:37,733 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:49:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:49:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:49:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:49:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:49:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:49:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:49:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:49:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:49:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:49:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:49:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:49:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:49:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:49:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:49:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:49:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:49:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:49:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:49:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:49:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:49:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:49:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:49:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:49:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:49:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:49:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:49:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:49:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:49:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:49:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:49:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:49:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:49:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:49:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:49:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:49:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:49:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:49:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:49:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:49:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:49:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:49:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:49:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:49:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:49:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:49:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:49:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:49:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:49:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:49:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:49:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:49:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:49:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:49:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:49:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:49:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:49:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:49:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:49:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:49:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:49:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:49:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:49:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:49:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:49:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:49:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:49:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:49:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:49:38,997 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:49:38,997 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:49:39,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:39 BoogieIcfgContainer [2020-09-25 09:49:39,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:49:39,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:49:39,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:49:39,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:49:39,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:49:36" (1/3) ... [2020-09-25 09:49:39,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217e3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:39, skipping insertion in model container [2020-09-25 09:49:39,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:37" (2/3) ... [2020-09-25 09:49:39,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217e3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:39, skipping insertion in model container [2020-09-25 09:49:39,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:39" (3/3) ... [2020-09-25 09:49:39,015 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2020-09-25 09:49:39,029 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:49:39,044 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:49:39,069 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:49:39,117 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:49:39,117 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:49:39,117 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:49:39,117 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:49:39,117 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:49:39,118 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:49:39,118 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:49:39,118 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:49:39,157 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-25 09:49:39,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 09:49:39,192 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:49:39,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:49:39,194 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:49:39,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:49:39,204 INFO L82 PathProgramCache]: Analyzing trace with hash -578069207, now seen corresponding path program 1 times [2020-09-25 09:49:39,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:49:39,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867598336] [2020-09-25 09:49:39,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:49:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:39,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:40,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:41,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:44,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:44,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 09:49:44,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:49:44,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 09:49:44,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:44,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:44,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:49:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:49:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 09:49:44,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 09:49:45,222 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:49:45,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:49:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:45,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:45,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:45,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:49:45,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:45,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-25 09:49:45,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:45,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:45,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:45,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:45,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:49:45,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:45,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:49:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:45,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:45,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:45,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:45,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:45,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:49:45,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:45,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:45,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:45,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:45,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:49:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:45,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:45,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:45,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:45,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:45,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:49:45,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:45,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:45,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:45,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:45,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:45,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:45,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:49:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:45,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:45,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:45,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:45,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:45,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:49:45,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:45,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:45,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:45,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:45,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:49:45,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:45,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:49:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:45,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:45,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:45,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:45,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:45,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:49:45,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:45,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:45,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:45,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:49:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:45,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:45,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:45,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:45,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:45,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:49:45,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:45,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:49:45,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:45,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 09:49:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:45,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:45,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:45,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:45,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:45,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:49:45,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:45,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:45,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:49:45,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:45,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:49:45,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:45,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 09:49:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:45,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:45,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:45,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:45,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:45,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:49:45,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:45,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:45,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:45,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:49:45,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:45,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:45,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:49:45,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867598336] [2020-09-25 09:49:45,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:49:45,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:49:45,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97541474] [2020-09-25 09:49:45,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:49:45,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:49:45,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:49:45,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:49:45,825 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 8 states. [2020-09-25 09:49:46,492 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:49:48,274 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:49:48,682 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:49:49,094 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:49:49,481 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:49:49,818 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:49:50,175 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:49:50,516 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:49:51,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:49:51,711 INFO L93 Difference]: Finished difference Result 620 states and 762 transitions. [2020-09-25 09:49:51,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:49:51,713 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 09:49:51,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:49:51,735 INFO L225 Difference]: With dead ends: 620 [2020-09-25 09:49:51,735 INFO L226 Difference]: Without dead ends: 429 [2020-09-25 09:49:51,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:49:51,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-25 09:49:51,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 382. [2020-09-25 09:49:51,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-25 09:49:51,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 429 transitions. [2020-09-25 09:49:51,885 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 429 transitions. Word has length 153 [2020-09-25 09:49:51,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:49:51,886 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 429 transitions. [2020-09-25 09:49:51,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:49:51,886 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 429 transitions. [2020-09-25 09:49:51,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 09:49:51,891 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:49:51,891 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] [2020-09-25 09:49:51,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:49:51,892 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:49:51,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:49:51,892 INFO L82 PathProgramCache]: Analyzing trace with hash 506010603, now seen corresponding path program 1 times [2020-09-25 09:49:51,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:49:51,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185647875] [2020-09-25 09:49:51,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:49:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:52,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:52,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:52,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:56,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:56,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:56,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 09:49:56,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:49:56,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 09:49:56,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:56,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:49:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 09:49:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 09:49:56,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:57,236 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:49:57,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:49:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:57,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:57,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:57,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:49:57,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:57,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-25 09:49:57,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:57,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:57,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:57,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:57,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 09:49:57,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:57,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:49:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:57,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:57,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:57,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:57,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:57,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:49:57,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:57,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:57,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:57,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:57,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:49:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:57,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:57,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:57,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:57,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:57,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:49:57,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:57,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:57,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:57,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:57,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:57,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:57,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:49:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:57,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:57,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:57,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:57,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:57,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:49:57,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:57,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:49:57,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:57,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:49:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:57,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:57,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:57,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:57,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:57,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:49:57,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:57,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:57,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:57,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:49:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:57,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:57,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:57,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:49:57,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:57,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:49:57,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:57,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:49:57,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:57,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 09:49:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:57,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:57,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:57,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:57,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:57,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:49:57,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:57,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:57,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:57,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:49:57,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:57,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:57,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 09:49:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:57,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:57,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:57,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:57,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:57,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:49:57,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:57,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:57,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:57,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:49:57,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:57,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:57,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 09:49:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:57,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:57,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:57,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:57,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:57,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:49:57,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:57,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:57,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:57,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:49:57,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:57,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:49:57,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185647875] [2020-09-25 09:49:57,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:49:57,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:49:57,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016231570] [2020-09-25 09:49:57,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:49:57,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:49:57,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:49:57,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:49:57,694 INFO L87 Difference]: Start difference. First operand 382 states and 429 transitions. Second operand 5 states. [2020-09-25 09:49:58,216 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:50:00,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:50:00,528 INFO L93 Difference]: Finished difference Result 1002 states and 1207 transitions. [2020-09-25 09:50:00,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:50:00,534 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-09-25 09:50:00,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:50:00,549 INFO L225 Difference]: With dead ends: 1002 [2020-09-25 09:50:00,549 INFO L226 Difference]: Without dead ends: 730 [2020-09-25 09:50:00,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:50:00,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2020-09-25 09:50:00,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 621. [2020-09-25 09:50:00,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-09-25 09:50:00,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 709 transitions. [2020-09-25 09:50:00,682 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 709 transitions. Word has length 159 [2020-09-25 09:50:00,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:50:00,683 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 709 transitions. [2020-09-25 09:50:00,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:50:00,683 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 709 transitions. [2020-09-25 09:50:00,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 09:50:00,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:50:00,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:50:00,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:50:00,688 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:50:00,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:50:00,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1758765749, now seen corresponding path program 1 times [2020-09-25 09:50:00,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:50:00,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734570836] [2020-09-25 09:50:00,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:50:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:00,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:05,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:05,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-09-25 09:50:05,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:50:05,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-25 09:50:05,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:05,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:50:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:50:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 09:50:05,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:06,095 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:50:06,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:50:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:06,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:50:06,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:06,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 09:50:06,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:06,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:06,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:06,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:06,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:50:06,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:06,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:50:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:06,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:06,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:06,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:06,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:06,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:06,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:06,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:06,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:06,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:06,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:50:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:06,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:06,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:06,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:06,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:06,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:06,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:50:06,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:50:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:06,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:06,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:06,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:50:06,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:06,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:06,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:50:06,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:06,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:50:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:06,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:06,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:06,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:06,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:06,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:06,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:06,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:06,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:50:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:06,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:50:06,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:06,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:50:06,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:06,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:06,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:06,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:06,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:50:06,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:50:06,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:50:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:06,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:50:06,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:06,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:50:06,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:06,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:50:06,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:06,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:50:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:06,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:50:06,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:06,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:50:06,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:06,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:06,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:50:06,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:50:06,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:50:06,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:06,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:50:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:06,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:06,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:06,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:06,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:06,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:06,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:06,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 09:50:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:06,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:06,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:06,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:50:06,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:06,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:06,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:06,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 09:50:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:06,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:06,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:06,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:50:06,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:06,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:06,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:06,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:06,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:06,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:50:06,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 09:50:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:06,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:06,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:06,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:50:06,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:06,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:06,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:06,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:06,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:06,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:50:06,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734570836] [2020-09-25 09:50:06,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:50:06,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:50:06,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772653781] [2020-09-25 09:50:06,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:50:06,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:50:06,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:50:06,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:50:06,596 INFO L87 Difference]: Start difference. First operand 621 states and 709 transitions. Second operand 8 states. [2020-09-25 09:50:07,128 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:50:08,946 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:50:11,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:50:11,272 INFO L93 Difference]: Finished difference Result 1874 states and 2401 transitions. [2020-09-25 09:50:11,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 09:50:11,273 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 180 [2020-09-25 09:50:11,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:50:11,284 INFO L225 Difference]: With dead ends: 1874 [2020-09-25 09:50:11,285 INFO L226 Difference]: Without dead ends: 1363 [2020-09-25 09:50:11,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2020-09-25 09:50:11,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2020-09-25 09:50:11,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1045. [2020-09-25 09:50:11,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2020-09-25 09:50:11,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1210 transitions. [2020-09-25 09:50:11,446 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1210 transitions. Word has length 180 [2020-09-25 09:50:11,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:50:11,447 INFO L479 AbstractCegarLoop]: Abstraction has 1045 states and 1210 transitions. [2020-09-25 09:50:11,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:50:11,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1210 transitions. [2020-09-25 09:50:11,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 09:50:11,451 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:50:11,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:50:11,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:50:11,452 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:50:11,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:50:11,452 INFO L82 PathProgramCache]: Analyzing trace with hash -254126211, now seen corresponding path program 1 times [2020-09-25 09:50:11,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:50:11,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921879979] [2020-09-25 09:50:11,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:50:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 09:50:11,515 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 09:50:11,515 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 09:50:11,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:50:11,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:50:11 BoogieIcfgContainer [2020-09-25 09:50:11,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:50:11,551 INFO L168 Benchmark]: Toolchain (without parser) took 34862.63 ms. Allocated memory was 138.4 MB in the beginning and 604.0 MB in the end (delta: 465.6 MB). Free memory was 99.7 MB in the beginning and 236.4 MB in the end (delta: -136.7 MB). Peak memory consumption was 328.8 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:11,552 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 09:50:11,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.16 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 99.0 MB in the beginning and 172.3 MB in the end (delta: -73.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:11,554 INFO L168 Benchmark]: Boogie Preprocessor took 98.84 ms. Allocated memory is still 202.9 MB. Free memory was 172.3 MB in the beginning and 168.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:11,555 INFO L168 Benchmark]: RCFGBuilder took 1369.28 ms. Allocated memory was 202.9 MB in the beginning and 233.8 MB in the end (delta: 30.9 MB). Free memory was 168.1 MB in the beginning and 179.7 MB in the end (delta: -11.6 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:11,556 INFO L168 Benchmark]: TraceAbstraction took 32543.12 ms. Allocated memory was 233.8 MB in the beginning and 604.0 MB in the end (delta: 370.1 MB). Free memory was 178.2 MB in the beginning and 236.4 MB in the end (delta: -58.2 MB). Peak memory consumption was 312.0 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:11,560 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 839.16 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 99.0 MB in the beginning and 172.3 MB in the end (delta: -73.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.84 ms. Allocated memory is still 202.9 MB. Free memory was 172.3 MB in the beginning and 168.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1369.28 ms. Allocated memory was 202.9 MB in the beginning and 233.8 MB in the end (delta: 30.9 MB). Free memory was 168.1 MB in the beginning and 179.7 MB in the end (delta: -11.6 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32543.12 ms. Allocated memory was 233.8 MB in the beginning and 604.0 MB in the end (delta: 370.1 MB). Free memory was 178.2 MB in the beginning and 236.4 MB in the end (delta: -58.2 MB). Peak memory consumption was 312.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L675] int waterLevel = 1; [L676] int methaneLevelCritical = 0; [L769] int cleanupTimeShifts = 4; [L845] int retValue_acc ; [L846] int tmp ; [L850] FCALL select_helpers() [L851] FCALL select_features() [L852] CALL, EXPR valid_product() [L894] int retValue_acc ; [L897] retValue_acc = 1 [L898] return (retValue_acc); [L852] RET, EXPR valid_product() [L852] tmp = valid_product() [L854] COND TRUE \read(tmp) [L856] FCALL setup() [L857] CALL runTest() [L836] CALL test() [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 [L615] COND TRUE 1 [L617] COND TRUE splverifierCounter < 4 [L623] tmp = __VERIFIER_nondet_int() [L625] COND TRUE \read(tmp) [L627] CALL waterRise() [L693] COND TRUE waterLevel < 2 [L694] waterLevel = waterLevel + 1 [L627] RET waterRise() [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___2)) [L651] tmp___1 = __VERIFIER_nondet_int() [L653] COND TRUE \read(tmp___1) [L655] CALL stopSystem() [L582] COND FALSE !(\read(pumpRunning)) [L589] systemActive = 0 [L655] RET stopSystem() [L662] CALL timeShift() [L434] COND FALSE !(\read(pumpRunning)) [L441] COND FALSE !(\read(systemActive)) [L449] CALL __utac_acc__Specification3_spec__1() [L904] int tmp ; [L905] int tmp___0 ; [L906] int tmp___1 ; [L910] CALL, EXPR isMethaneLevelCritical() [L714] int retValue_acc ; [L717] retValue_acc = methaneLevelCritical [L718] return (retValue_acc); [L910] RET, EXPR isMethaneLevelCritical() [L910] tmp = isMethaneLevelCritical() [L912] COND FALSE !(\read(tmp)) [L916] CALL, EXPR getWaterLevel() [L746] int retValue_acc ; [L749] retValue_acc = waterLevel [L750] return (retValue_acc); [L916] RET, EXPR getWaterLevel() [L916] tmp___0 = getWaterLevel() [L918] COND TRUE tmp___0 == 2 [L920] CALL, EXPR isPumpRunning() [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); [L920] RET, EXPR isPumpRunning() [L920] tmp___1 = isPumpRunning() [L922] COND FALSE !(\read(tmp___1)) [L926] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 622 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 796 SDtfs, 1741 SDslu, 1246 SDs, 0 SdLazy, 2792 SolverSat, 622 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1045occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 474 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 669 NumberOfCodeBlocks, 669 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 489 ConstructedInterpolants, 0 QuantifiedInterpolants, 213781 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...