/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=0.4 --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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:11:08,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:11:08,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:11:08,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:11:08,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:11:08,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:11:08,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:11:08,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:11:08,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:11:08,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:11:08,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:11:08,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:11:08,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:11:08,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:11:08,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:11:08,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:11:08,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:11:08,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:11:08,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:11:08,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:11:08,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:11:08,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:11:08,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:11:08,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:11:08,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:11:08,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:11:08,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:11:08,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:11:08,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:11:08,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:11:08,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:11:08,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:11:08,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:11:08,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:11:08,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:11:08,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:11:08,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:11:08,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:11:08,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:11:08,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:11:08,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:11:08,340 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 13:11:08,363 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:11:08,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:11:08,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:11:08,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:11:08,365 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:11:08,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:11:08,366 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:11:08,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:11:08,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:11:08,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:11:08,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:11:08,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:11:08,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:11:08,367 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:11:08,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:11:08,367 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:11:08,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:11:08,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:11:08,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:11:08,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:11:08,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:11:08,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:11:08,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:11:08,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:11:08,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:11:08,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:11:08,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:11:08,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:11:08,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:11:08,370 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 13:11:08,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:11:08,857 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:11:08,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:11:08,864 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:11:08,864 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:11:08,866 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-25 13:11:08,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13600909e/ad1a97debca140b59e157460eb5f9d91/FLAG8d61a37b5 [2020-09-25 13:11:09,584 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:11:09,585 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-25 13:11:09,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13600909e/ad1a97debca140b59e157460eb5f9d91/FLAG8d61a37b5 [2020-09-25 13:11:09,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13600909e/ad1a97debca140b59e157460eb5f9d91 [2020-09-25 13:11:09,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:11:09,882 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:11:09,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:11:09,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:11:09,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:11:09,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:09" (1/1) ... [2020-09-25 13:11:09,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:09, skipping insertion in model container [2020-09-25 13:11:09,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:09" (1/1) ... [2020-09-25 13:11:09,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:11:09,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:11:10,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:11:10,488 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:11:10,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:11:10,680 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:11:10,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:10 WrapperNode [2020-09-25 13:11:10,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:11:10,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:11:10,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:11:10,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:11:10,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:10" (1/1) ... [2020-09-25 13:11:10,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:10" (1/1) ... [2020-09-25 13:11:10,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:10" (1/1) ... [2020-09-25 13:11:10,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:10" (1/1) ... [2020-09-25 13:11:10,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:10" (1/1) ... [2020-09-25 13:11:10,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:10" (1/1) ... [2020-09-25 13:11:10,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:10" (1/1) ... [2020-09-25 13:11:10,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:11:10,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:11:10,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:11:10,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:11:10,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:10" (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 13:11:10,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:11:10,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:11:10,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:11:10,934 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:11:10,935 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:11:10,935 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:11:10,935 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:11:10,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:11:10,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:11:10,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:11:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:11:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:11:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:11:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:11:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:11:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:11:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:11:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:11:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:11:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:11:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:11:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:11:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:11:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:11:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:11:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:11:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:11:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:11:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:11:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:11:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:11:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:11:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:11:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:11:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:11:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:11:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:11:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:11:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:11:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:11:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:11:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:11:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:11:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:11:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:11:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:11:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:11:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:11:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:11:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:11:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:11:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:11:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:11:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:11:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:11:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:11:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:11:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:11:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:11:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:11:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:11:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:11:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:11:10,948 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:11:10,948 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:11:10,948 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:11:10,948 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:11:10,948 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:11:10,948 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:11:10,949 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:11:10,949 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:11:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:11:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:11:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:11:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:11:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:11:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:11:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:11:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:11:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:11:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:11:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:11:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:11:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:11:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:11:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:11:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:11:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:11:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:11:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:11:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:11:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:11:12,350 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:11:12,350 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:11:12,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:12 BoogieIcfgContainer [2020-09-25 13:11:12,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:11:12,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:11:12,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:11:12,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:11:12,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:11:09" (1/3) ... [2020-09-25 13:11:12,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f3e731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:12, skipping insertion in model container [2020-09-25 13:11:12,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:10" (2/3) ... [2020-09-25 13:11:12,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f3e731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:12, skipping insertion in model container [2020-09-25 13:11:12,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:12" (3/3) ... [2020-09-25 13:11:12,367 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2020-09-25 13:11:12,379 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:11:12,391 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:11:12,415 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:11:12,451 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:11:12,451 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:11:12,452 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:11:12,452 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:11:12,452 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:11:12,452 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:11:12,452 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:11:12,452 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:11:12,486 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 13:11:12,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 13:11:12,506 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:12,508 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 13:11:12,509 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:12,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:12,517 INFO L82 PathProgramCache]: Analyzing trace with hash 554179223, now seen corresponding path program 1 times [2020-09-25 13:11:12,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:12,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874477567] [2020-09-25 13:11:12,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:13,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:13,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:14,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:17,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:17,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:11:17,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:11:17,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:11:17,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:17,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:17,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:11:17,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:11:17,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 13:11:17,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:11:18,411 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:18,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:18,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:18,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:18,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:18,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-25 13:11:18,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:18,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:18,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:18,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:18,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:11:18,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:18,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:18,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:18,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:18,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:18,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:18,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:11:18,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:18,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:18,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:18,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:18,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:18,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:18,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:18,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:18,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:18,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:18,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:18,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:18,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:18,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:18,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:18,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:18,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:18,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:18,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:18,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:18,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:18,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:11:18,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:18,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:18,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:18,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:18,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:18,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:18,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:18,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:18,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:18,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:18,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:18,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:18,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:18,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:18,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:18,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:18,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 13:11:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:18,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:18,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:18,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:18,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:18,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:18,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:18,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:18,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:18,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:18,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:18,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 13:11:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:18,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:18,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:18,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:18,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:18,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:18,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:18,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:18,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:18,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:18,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:18,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:18,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 13:11:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:19,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:19,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:19,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:19,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:19,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:19,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:19,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:19,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:19,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:19,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:19,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:19,047 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 13:11:19,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874477567] [2020-09-25 13:11:19,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:19,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:11:19,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237995722] [2020-09-25 13:11:19,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:11:19,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:19,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:11:19,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:11:19,087 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 4 states. [2020-09-25 13:11:19,730 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:22,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:22,045 INFO L93 Difference]: Finished difference Result 623 states and 756 transitions. [2020-09-25 13:11:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:11:22,048 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 13:11:22,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:22,070 INFO L225 Difference]: With dead ends: 623 [2020-09-25 13:11:22,071 INFO L226 Difference]: Without dead ends: 438 [2020-09-25 13:11:22,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:11:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-09-25 13:11:22,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 370. [2020-09-25 13:11:22,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-09-25 13:11:22,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 411 transitions. [2020-09-25 13:11:22,224 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 411 transitions. Word has length 153 [2020-09-25 13:11:22,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:22,225 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 411 transitions. [2020-09-25 13:11:22,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:11:22,225 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 411 transitions. [2020-09-25 13:11:22,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 13:11:22,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:22,231 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] [2020-09-25 13:11:22,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:11:22,231 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:22,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:22,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1437801491, now seen corresponding path program 1 times [2020-09-25 13:11:22,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:22,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699583020] [2020-09-25 13:11:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:22,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:22,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:25,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:25,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 13:11:25,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:11:25,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3482 [2020-09-25 13:11:25,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:25,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:25,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:11:25,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:11:25,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 13:11:25,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:26,088 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:26,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:26,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:26,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:26,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:26,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:26,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-09-25 13:11:26,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:26,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:26,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:26,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:26,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:11:26,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:26,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:26,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:26,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:26,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:26,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:26,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:26,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:26,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:26,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:26,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:26,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:26,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:26,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:26,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:26,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:26,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:26,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:26,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:26,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:26,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:26,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:26,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:26,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:26,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:26,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:26,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:26,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:26,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:26,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:26,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:11:26,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:26,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:26,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:26,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:26,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:26,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:26,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:26,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:26,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:26,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:26,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:26,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:26,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:26,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:26,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:26,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:26,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:26,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:26,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:11:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:26,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:26,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:26,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:11:26,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:26,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:26,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:26,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:11:26,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:26,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:11:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:26,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:26,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:26,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:26,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:26,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:26,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:26,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:26,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:26,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:11:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:26,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:26,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:26,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:26,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:26,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:26,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:26,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:26,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:26,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:26,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:26,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:26,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 13:11:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:26,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:26,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:26,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:26,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:26,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:11:26,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:26,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:11:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:26,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:26,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:26,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 13:11:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:26,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:26,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:26,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:26,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:26,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:26,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:26,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:26,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:26,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:26,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:26,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:26,710 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 13:11:26,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699583020] [2020-09-25 13:11:26,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:26,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:11:26,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726888513] [2020-09-25 13:11:26,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:11:26,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:26,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:11:26,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:11:26,716 INFO L87 Difference]: Start difference. First operand 370 states and 411 transitions. Second operand 9 states. [2020-09-25 13:11:27,256 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:28,758 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:11:29,661 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 13:11:30,353 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 13:11:30,754 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:31,091 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:31,405 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:31,819 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:32,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:32,986 INFO L93 Difference]: Finished difference Result 1069 states and 1340 transitions. [2020-09-25 13:11:32,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:11:32,987 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 162 [2020-09-25 13:11:32,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:32,998 INFO L225 Difference]: With dead ends: 1069 [2020-09-25 13:11:32,998 INFO L226 Difference]: Without dead ends: 809 [2020-09-25 13:11:33,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:11:33,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2020-09-25 13:11:33,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 625. [2020-09-25 13:11:33,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-09-25 13:11:33,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 717 transitions. [2020-09-25 13:11:33,123 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 717 transitions. Word has length 162 [2020-09-25 13:11:33,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:33,127 INFO L479 AbstractCegarLoop]: Abstraction has 625 states and 717 transitions. [2020-09-25 13:11:33,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:11:33,127 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 717 transitions. [2020-09-25 13:11:33,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 13:11:33,132 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:33,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:11:33,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:11:33,133 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:33,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:33,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1698348622, now seen corresponding path program 1 times [2020-09-25 13:11:33,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:33,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183088267] [2020-09-25 13:11:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:33,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:33,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:33,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:38,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 13:11:38,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:11:38,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 13:11:38,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:38,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:11:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:11:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 13:11:38,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:11:38,530 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:38,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:38,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:38,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:38,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:38,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 13:11:38,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:38,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:38,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:38,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:38,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:11:38,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:38,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:38,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:38,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:38,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:38,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:38,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:38,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:38,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:38,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:38,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:38,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:11:38,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:38,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:38,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:38,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:38,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:38,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:38,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:38,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:38,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:38,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:38,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:38,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:38,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:38,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:11:38,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:38,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:38,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:38,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:38,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:38,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:38,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:38,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:38,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:38,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:38,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:38,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:38,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:38,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:38,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:38,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 13:11:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:38,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:38,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:11:38,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:38,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:38,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:38,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:11:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:38,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:38,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 13:11:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:38,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:38,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:11:38,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:38,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:38,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:38,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:38,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:38,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:11:38,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:38,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:38,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:11:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:38,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:38,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:38,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:38,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:38,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:38,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:38,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:11:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:38,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:38,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:38,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:38,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:38,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:38,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:38,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:38,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:38,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:38,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 13:11:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:38,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:38,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:38,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:38,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:38,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:38,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:38,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:38,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 13:11:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:38,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:38,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:38,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:38,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:38,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:38,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:38,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:38,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:38,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:38,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:38,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:38,981 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 13:11:38,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183088267] [2020-09-25 13:11:38,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:38,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:11:38,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710537165] [2020-09-25 13:11:38,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:11:38,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:38,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:11:38,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:11:38,985 INFO L87 Difference]: Start difference. First operand 625 states and 717 transitions. Second operand 6 states. [2020-09-25 13:11:39,536 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:40,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:40,440 INFO L93 Difference]: Finished difference Result 1010 states and 1206 transitions. [2020-09-25 13:11:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:11:40,444 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 13:11:40,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:40,448 INFO L225 Difference]: With dead ends: 1010 [2020-09-25 13:11:40,448 INFO L226 Difference]: Without dead ends: 474 [2020-09-25 13:11:40,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:11:40,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-09-25 13:11:40,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 443. [2020-09-25 13:11:40,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-09-25 13:11:40,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 480 transitions. [2020-09-25 13:11:40,529 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 480 transitions. Word has length 167 [2020-09-25 13:11:40,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:40,530 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 480 transitions. [2020-09-25 13:11:40,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:11:40,530 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 480 transitions. [2020-09-25 13:11:40,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 13:11:40,533 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:40,533 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 13:11:40,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:11:40,534 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:40,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:40,534 INFO L82 PathProgramCache]: Analyzing trace with hash 430422311, now seen corresponding path program 1 times [2020-09-25 13:11:40,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:40,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54219479] [2020-09-25 13:11:40,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:11:40,600 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:11:40,600 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:11:40,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:11:40,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:40 BoogieIcfgContainer [2020-09-25 13:11:40,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:11:40,636 INFO L168 Benchmark]: Toolchain (without parser) took 30759.01 ms. Allocated memory was 138.9 MB in the beginning and 642.3 MB in the end (delta: 503.3 MB). Free memory was 101.4 MB in the beginning and 552.0 MB in the end (delta: -450.5 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:40,637 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 13:11:40,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.93 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.7 MB in the beginning and 170.3 MB in the end (delta: -69.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:40,639 INFO L168 Benchmark]: Boogie Preprocessor took 141.48 ms. Allocated memory is still 202.9 MB. Free memory was 170.3 MB in the beginning and 166.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:40,640 INFO L168 Benchmark]: RCFGBuilder took 1532.56 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 166.0 MB in the beginning and 176.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:40,641 INFO L168 Benchmark]: TraceAbstraction took 28275.47 ms. Allocated memory was 234.9 MB in the beginning and 642.3 MB in the end (delta: 407.4 MB). Free memory was 176.8 MB in the beginning and 552.0 MB in the end (delta: -375.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:40,645 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 797.93 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.7 MB in the beginning and 170.3 MB in the end (delta: -69.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.48 ms. Allocated memory is still 202.9 MB. Free memory was 170.3 MB in the beginning and 166.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1532.56 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 166.0 MB in the beginning and 176.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28275.47 ms. Allocated memory was 234.9 MB in the beginning and 642.3 MB in the end (delta: 407.4 MB). Free memory was 176.8 MB in the beginning and 552.0 MB in the end (delta: -375.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 927]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L522] int retValue_acc ; [L523] int tmp ; [L527] FCALL select_helpers() [L528] FCALL select_features() [L529] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L529] RET, EXPR valid_product() [L529] tmp = valid_product() [L531] COND TRUE \read(tmp) [L533] FCALL setup() [L534] CALL runTest() [L516] CALL test() [L766] int splverifierCounter ; [L767] int tmp ; [L768] int tmp___0 ; [L769] int tmp___1 ; [L770] int tmp___2 ; [L773] splverifierCounter = 0 [L775] COND TRUE 1 [L777] COND TRUE splverifierCounter < 4 [L783] tmp = __VERIFIER_nondet_int() [L785] COND TRUE \read(tmp) [L787] CALL waterRise() [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 [L787] RET waterRise() [L793] tmp___0 = __VERIFIER_nondet_int() [L795] COND FALSE !(\read(tmp___0)) [L803] tmp___2 = __VERIFIER_nondet_int() [L805] COND FALSE !(\read(tmp___2)) [L811] tmp___1 = __VERIFIER_nondet_int() [L813] COND TRUE \read(tmp___1) [L815] CALL stopSystem() [L745] COND FALSE !(\read(pumpRunning)) [L752] systemActive = 0 [L815] RET stopSystem() [L822] CALL timeShift() [L597] COND FALSE !(\read(pumpRunning)) [L604] COND FALSE !(\read(systemActive)) [L612] CALL __utac_acc__Specification3_spec__1() [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L556] CALL, EXPR isMethaneLevelCritical() [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L556] RET, EXPR isMethaneLevelCritical() [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L562] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); [L562] RET, EXPR getWaterLevel() [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L566] CALL, EXPR isPumpRunning() [L678] int retValue_acc ; [L681] retValue_acc = pumpRunning [L682] return (retValue_acc); [L566] RET, EXPR isPumpRunning() [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) [L572] CALL __automaton_fail() [L927] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 619 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 674 SDtfs, 1320 SDslu, 820 SDs, 0 SdLazy, 1841 SolverSat, 411 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=625occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 283 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 659 NumberOfCodeBlocks, 659 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 479 ConstructedInterpolants, 0 QuantifiedInterpolants, 202507 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...