/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:19:09,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:19:09,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:19:09,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:19:09,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:19:09,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:19:09,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:19:09,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:19:09,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:19:09,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:19:09,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:19:09,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:19:09,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:19:09,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:19:09,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:19:09,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:19:09,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:19:09,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:19:09,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:19:09,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:19:09,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:19:09,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:19:09,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:19:09,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:19:09,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:19:09,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:19:09,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:19:09,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:19:09,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:19:09,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:19:09,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:19:09,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:19:09,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:19:09,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:19:09,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:19:09,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:19:09,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:19:09,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:19:09,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:19:09,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:19:09,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:19:09,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:19:09,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:19:09,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:19:09,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:19:09,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:19:09,700 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:19:09,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:19:09,700 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:19:09,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:19:09,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:19:09,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:19:09,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:19:09,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:19:09,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:19:09,703 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:19:09,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:19:09,704 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:19:09,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:19:09,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:19:09,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:19:09,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:19:09,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:19:09,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:19:09,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:19:09,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:19:09,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:19:09,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:19:09,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:19:09,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:19:09,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:19:09,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:19:10,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:19:10,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:19:10,174 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:19:10,176 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:19:10,176 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:19:10,177 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-09-25 14:19:10,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/229826204/14b2bbbc53d34b1c914581885ce66a21/FLAGc12f923ec [2020-09-25 14:19:10,872 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:19:10,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-09-25 14:19:10,890 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/229826204/14b2bbbc53d34b1c914581885ce66a21/FLAGc12f923ec [2020-09-25 14:19:11,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/229826204/14b2bbbc53d34b1c914581885ce66a21 [2020-09-25 14:19:11,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:19:11,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:19:11,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:19:11,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:19:11,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:19:11,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:11" (1/1) ... [2020-09-25 14:19:11,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:11, skipping insertion in model container [2020-09-25 14:19:11,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:11" (1/1) ... [2020-09-25 14:19:11,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:19:11,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:19:11,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:19:11,819 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:19:11,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:19:11,974 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:19:11,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:11 WrapperNode [2020-09-25 14:19:11,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:19:11,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:19:11,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:19:11,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:19:11,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:11" (1/1) ... [2020-09-25 14:19:11,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:11" (1/1) ... [2020-09-25 14:19:12,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:11" (1/1) ... [2020-09-25 14:19:12,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:11" (1/1) ... [2020-09-25 14:19:12,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:11" (1/1) ... [2020-09-25 14:19:12,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:11" (1/1) ... [2020-09-25 14:19:12,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:11" (1/1) ... [2020-09-25 14:19:12,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:19:12,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:19:12,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:19:12,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:19:12,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:19:12,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:19:12,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:19:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:19:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:19:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:19:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:19:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:19:12,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:19:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:19:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:19:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:19:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:19:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:19:12,180 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:19:12,180 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:19:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:19:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:19:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:19:12,182 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:19:12,182 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:19:12,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:19:12,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:19:12,183 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:19:12,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:19:12,183 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:19:12,184 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:19:12,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:19:12,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:19:12,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:19:12,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:19:12,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:19:12,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:19:12,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:19:12,186 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:19:12,186 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:19:12,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:19:12,186 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:19:12,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:19:12,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:19:12,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:19:12,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:19:12,187 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:19:12,187 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:19:12,187 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:19:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:19:12,189 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:19:12,189 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:19:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:19:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:19:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:19:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:19:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:19:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:19:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:19:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:19:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:19:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:19:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:19:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:19:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:19:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:19:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:19:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:19:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:19:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:19:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:19:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:19:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:19:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:19:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:19:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:19:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:19:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:19:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:19:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:19:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:19:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:19:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:19:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:19:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:19:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:19:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:19:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:19:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:19:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:19:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:19:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:19:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:19:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:19:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:19:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:19:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:19:13,421 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:19:13,422 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:19:13,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:19:13 BoogieIcfgContainer [2020-09-25 14:19:13,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:19:13,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:19:13,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:19:13,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:19:13,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:19:11" (1/3) ... [2020-09-25 14:19:13,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccecb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:19:13, skipping insertion in model container [2020-09-25 14:19:13,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:11" (2/3) ... [2020-09-25 14:19:13,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccecb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:19:13, skipping insertion in model container [2020-09-25 14:19:13,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:19:13" (3/3) ... [2020-09-25 14:19:13,439 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2020-09-25 14:19:13,451 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:19:13,462 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:19:13,491 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:19:13,546 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:19:13,547 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:19:13,547 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:19:13,547 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:19:13,547 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:19:13,547 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:19:13,547 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:19:13,547 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:19:13,575 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-25 14:19:13,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 14:19:13,594 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:13,596 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 14:19:13,597 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:13,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:13,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1883472631, now seen corresponding path program 1 times [2020-09-25 14:19:13,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:13,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676876417] [2020-09-25 14:19:13,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:14,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:14,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:15,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:18,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:18,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:19:18,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:19:18,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 14:19:18,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:18,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:19:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:19:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 14:19:18,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:19:19,420 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:19,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:19,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:19,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:19,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:19,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:19,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-25 14:19:19,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:19,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:19,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:19,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:19,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:19:19,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:19,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:19,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:19,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:19,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:19,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:19,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:19:19,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:19,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:19,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:19,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:19,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:19,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:19,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:19,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:19,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:19,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:19,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:19,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:19,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:19,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:19,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:19,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:19,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:19,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:19,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:19,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:19,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:19,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:19,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 14:19:19,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:19,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:19,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:19,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:19,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:19,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:19,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:19,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:19,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:19,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:19,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:19,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:19,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:19,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:19,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:19,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 14:19:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:19,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:19,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:19,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:19,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:19,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:19,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:19,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:19,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:19,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:19,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:19,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:19,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 14:19:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:19,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:19,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:19,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:19,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:19,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:19,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:19,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:19,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:19,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:19,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:19,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:19,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 14:19:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:19,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:19,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:19,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:19,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:19,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:19,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:19,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:19,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:19,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:20,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:19:20,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676876417] [2020-09-25 14:19:20,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:20,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:19:20,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221953042] [2020-09-25 14:19:20,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:19:20,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:20,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:19:20,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:19:20,071 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 4 states. [2020-09-25 14:19:20,679 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:23,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:23,010 INFO L93 Difference]: Finished difference Result 692 states and 841 transitions. [2020-09-25 14:19:23,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:19:23,015 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 14:19:23,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:23,038 INFO L225 Difference]: With dead ends: 692 [2020-09-25 14:19:23,038 INFO L226 Difference]: Without dead ends: 485 [2020-09-25 14:19:23,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:19:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-09-25 14:19:23,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 418. [2020-09-25 14:19:23,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-09-25 14:19:23,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 469 transitions. [2020-09-25 14:19:23,221 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 469 transitions. Word has length 153 [2020-09-25 14:19:23,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:23,222 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 469 transitions. [2020-09-25 14:19:23,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:19:23,249 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 469 transitions. [2020-09-25 14:19:23,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 14:19:23,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:23,266 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] [2020-09-25 14:19:23,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:19:23,267 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:23,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:23,268 INFO L82 PathProgramCache]: Analyzing trace with hash -156402238, now seen corresponding path program 1 times [2020-09-25 14:19:23,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:23,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153216049] [2020-09-25 14:19:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:23,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:23,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:23,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:26,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:27,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:28,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:28,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 14:19:28,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:19:28,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:19:28,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:28,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:28,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:19:28,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:19:28,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 14:19:28,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:28,623 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:28,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:28,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:28,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:28,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:28,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:28,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 14:19:28,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:28,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:28,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:19:28,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:28,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:28,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:28,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:28,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:28,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:28,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:28,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:28,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:28,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:28,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:28,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:28,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:28,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:28,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:28,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:28,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:28,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:28,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:28,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:28,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:28,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:28,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:28,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:28,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:28,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:28,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:28,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:28,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:28,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:28,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:19:28,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:28,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:28,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:28,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:28,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:28,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:28,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:28,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:28,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:28,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:28,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:28,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:28,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:28,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:28,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:28,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 14:19:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:28,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:28,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:29,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:29,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:19:29,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:19:29,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:19:29,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:29,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:29,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:19:29,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:19:29,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:19:29,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:29,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:19:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:29,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:29,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:29,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:19:29,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:29,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:19:29,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:29,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:19:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:19:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:19:29,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:29,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:19:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:29,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:29,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:29,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:29,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:29,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:29,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:29,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:29,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:29,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:19:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:29,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:29,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:29,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:29,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:29,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:29,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:29,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:29,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:29,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 14:19:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:29,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:29,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:29,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:29,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:29,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:29,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:29,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:29,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:29,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:29,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:29,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:29,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 14:19:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:29,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:29,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:29,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:29,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:29,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:29,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:29,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:29,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:29,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:29,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:29,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:29,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:19:29,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153216049] [2020-09-25 14:19:29,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:29,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:19:29,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546663224] [2020-09-25 14:19:29,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:19:29,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:29,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:19:29,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:19:29,152 INFO L87 Difference]: Start difference. First operand 418 states and 469 transitions. Second operand 6 states. [2020-09-25 14:19:29,678 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:31,356 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:19:32,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:32,820 INFO L93 Difference]: Finished difference Result 1164 states and 1440 transitions. [2020-09-25 14:19:32,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:19:32,821 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2020-09-25 14:19:32,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:32,858 INFO L225 Difference]: With dead ends: 1164 [2020-09-25 14:19:32,858 INFO L226 Difference]: Without dead ends: 856 [2020-09-25 14:19:32,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:19:32,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2020-09-25 14:19:32,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 713. [2020-09-25 14:19:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-09-25 14:19:32,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 815 transitions. [2020-09-25 14:19:32,984 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 815 transitions. Word has length 176 [2020-09-25 14:19:32,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:32,985 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 815 transitions. [2020-09-25 14:19:32,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:19:32,985 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 815 transitions. [2020-09-25 14:19:32,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 14:19:32,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:32,989 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] [2020-09-25 14:19:32,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:19:32,989 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:32,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:32,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1156257497, now seen corresponding path program 1 times [2020-09-25 14:19:32,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:32,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120656859] [2020-09-25 14:19:32,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:33,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:34,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:34,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 14:19:34,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:34,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1846 [2020-09-25 14:19:34,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:34,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:34,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:19:34,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 14:19:34,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 14:19:34,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:35,200 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:35,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:35,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 14:19:35,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 14:19:35,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:19:35,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:35,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:35,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:35,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:35,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:35,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:35,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:35,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:35,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:35,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:35,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:35,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:19:35,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:35,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:35,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:35,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:35,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:19:35,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:35,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:35,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:35,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 14:19:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:19:35,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:35,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:35,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:19:35,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:35,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 14:19:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:35,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:35,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:35,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:35,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:35,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 14:19:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:35,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:19:35,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:19:35,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:35,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:35,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 14:19:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:35,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:35,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:35,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:35,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:19:35,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120656859] [2020-09-25 14:19:35,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:35,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:19:35,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366546462] [2020-09-25 14:19:35,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:19:35,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:35,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:19:35,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:19:35,719 INFO L87 Difference]: Start difference. First operand 713 states and 815 transitions. Second operand 10 states. [2020-09-25 14:19:36,182 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:37,836 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:38,191 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:38,583 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:38,932 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:39,270 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:19:39,608 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:39,919 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:40,321 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:42,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:42,191 INFO L93 Difference]: Finished difference Result 1987 states and 2542 transitions. [2020-09-25 14:19:42,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:19:42,192 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 14:19:42,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:42,206 INFO L225 Difference]: With dead ends: 1987 [2020-09-25 14:19:42,207 INFO L226 Difference]: Without dead ends: 1304 [2020-09-25 14:19:42,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:19:42,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-09-25 14:19:42,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1201. [2020-09-25 14:19:42,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1201 states. [2020-09-25 14:19:42,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1393 transitions. [2020-09-25 14:19:42,417 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1393 transitions. Word has length 172 [2020-09-25 14:19:42,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:42,419 INFO L479 AbstractCegarLoop]: Abstraction has 1201 states and 1393 transitions. [2020-09-25 14:19:42,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:19:42,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1393 transitions. [2020-09-25 14:19:42,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 14:19:42,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:42,424 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 14:19:42,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:19:42,424 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:42,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:42,424 INFO L82 PathProgramCache]: Analyzing trace with hash 82436204, now seen corresponding path program 1 times [2020-09-25 14:19:42,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:42,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399775207] [2020-09-25 14:19:42,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 14:19:42,499 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 14:19:42,500 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 14:19:42,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:19:42,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:19:42 BoogieIcfgContainer [2020-09-25 14:19:42,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:19:42,560 INFO L168 Benchmark]: Toolchain (without parser) took 31399.78 ms. Allocated memory was 140.5 MB in the beginning and 607.1 MB in the end (delta: 466.6 MB). Free memory was 102.5 MB in the beginning and 375.1 MB in the end (delta: -272.6 MB). Peak memory consumption was 194.0 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:42,561 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 14:19:42,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.76 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 101.8 MB in the beginning and 174.0 MB in the end (delta: -72.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:42,565 INFO L168 Benchmark]: Boogie Preprocessor took 102.13 ms. Allocated memory is still 205.5 MB. Free memory was 174.0 MB in the beginning and 170.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:42,574 INFO L168 Benchmark]: RCFGBuilder took 1349.66 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 170.0 MB in the beginning and 174.1 MB in the end (delta: -4.1 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:42,575 INFO L168 Benchmark]: TraceAbstraction took 29126.91 ms. Allocated memory was 235.4 MB in the beginning and 607.1 MB in the end (delta: 371.7 MB). Free memory was 174.1 MB in the beginning and 375.1 MB in the end (delta: -201.0 MB). Peak memory consumption was 170.7 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:42,586 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 810.76 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 101.8 MB in the beginning and 174.0 MB in the end (delta: -72.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.13 ms. Allocated memory is still 205.5 MB. Free memory was 174.0 MB in the beginning and 170.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1349.66 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 170.0 MB in the beginning and 174.1 MB in the end (delta: -4.1 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29126.91 ms. Allocated memory was 235.4 MB in the beginning and 607.1 MB in the end (delta: 371.7 MB). Free memory was 174.1 MB in the beginning and 375.1 MB in the end (delta: -201.0 MB). Peak memory consumption was 170.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 451]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L625] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int cleanupTimeShifts = 4; [L895] int retValue_acc ; [L896] int tmp ; [L900] FCALL select_helpers() [L901] FCALL select_features() [L902] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L902] RET, EXPR valid_product() [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) [L906] FCALL setup() [L907] CALL runTest() [L889] CALL test() [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 [L390] COND TRUE 1 [L392] COND TRUE splverifierCounter < 4 [L398] tmp = __VERIFIER_nondet_int() [L400] COND TRUE \read(tmp) [L402] CALL waterRise() [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 [L402] RET waterRise() [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___2)) [L424] tmp___1 = __VERIFIER_nondet_int() [L426] COND TRUE \read(tmp___1) [L428] CALL stopSystem() [L367] COND FALSE !(\read(pumpRunning)) [L374] systemActive = 0 [L428] RET stopSystem() [L435] CALL timeShift() [L193] COND FALSE !(\read(pumpRunning)) [L200] COND FALSE !(\read(systemActive)) [L208] CALL __utac_acc__Specification3_spec__1() [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L925] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L925] RET, EXPR isMethaneLevelCritical() [L925] tmp = isMethaneLevelCritical() [L927] COND FALSE !(\read(tmp)) [L931] CALL, EXPR getWaterLevel() [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); [L931] RET, EXPR getWaterLevel() [L931] tmp___0 = getWaterLevel() [L933] COND TRUE tmp___0 == 2 [L935] CALL, EXPR isPumpRunning() [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); [L935] RET, EXPR isPumpRunning() [L935] tmp___1 = isPumpRunning() [L937] COND FALSE !(\read(tmp___1)) [L941] CALL __automaton_fail() [L451] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 630 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 13.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 885 SDtfs, 1741 SDslu, 1150 SDs, 0 SdLazy, 2746 SolverSat, 651 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1201occurred 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, 313 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 14.4s InterpolantComputationTime, 678 NumberOfCodeBlocks, 678 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 498 ConstructedInterpolants, 0 QuantifiedInterpolants, 234960 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...