/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_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:11:22,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:11:22,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:11:22,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:11:22,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:11:22,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:11:22,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:11:22,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:11:22,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:11:22,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:11:22,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:11:22,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:11:22,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:11:22,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:11:22,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:11:22,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:11:22,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:11:22,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:11:22,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:11:22,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:11:22,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:11:22,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:11:22,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:11:22,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:11:22,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:11:22,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:11:22,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:11:22,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:11:22,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:11:22,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:11:22,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:11:22,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:11:22,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:11:22,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:11:22,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:11:22,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:11:22,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:11:22,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:11:22,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:11:22,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:11:22,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:11:22,339 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 13:11:22,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:11:22,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:11:22,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:11:22,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:11:22,389 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:11:22,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:11:22,390 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:11:22,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:11:22,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:11:22,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:11:22,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:11:22,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:11:22,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:11:22,392 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:11:22,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:11:22,393 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:11:22,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:11:22,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:11:22,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:11:22,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:11:22,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:11:22,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:11:22,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:11:22,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:11:22,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:11:22,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:11:22,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:11:22,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:11:22,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:11:22,395 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 13:11:22,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:11:22,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:11:22,928 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:11:22,930 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:11:22,931 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:11:22,932 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-09-25 13:11:23,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78ad13ae3/789e1c9676d9455bb55c96f80cd783ed/FLAGbf1e4e818 [2020-09-25 13:11:23,630 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:11:23,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-09-25 13:11:23,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78ad13ae3/789e1c9676d9455bb55c96f80cd783ed/FLAGbf1e4e818 [2020-09-25 13:11:23,891 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78ad13ae3/789e1c9676d9455bb55c96f80cd783ed [2020-09-25 13:11:23,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:11:23,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:11:23,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:11:23,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:11:23,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:11:23,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:23" (1/1) ... [2020-09-25 13:11:23,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:23, skipping insertion in model container [2020-09-25 13:11:23,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:23" (1/1) ... [2020-09-25 13:11:23,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:11:24,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:11:24,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:11:24,519 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:11:24,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:11:24,668 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:11:24,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:24 WrapperNode [2020-09-25 13:11:24,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:11:24,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:11:24,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:11:24,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:11:24,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:24" (1/1) ... [2020-09-25 13:11:24,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:24" (1/1) ... [2020-09-25 13:11:24,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:24" (1/1) ... [2020-09-25 13:11:24,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:24" (1/1) ... [2020-09-25 13:11:24,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:24" (1/1) ... [2020-09-25 13:11:24,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:24" (1/1) ... [2020-09-25 13:11:24,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:24" (1/1) ... [2020-09-25 13:11:24,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:11:24,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:11:24,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:11:24,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:11:24,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:24" (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 13:11:24,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:11:24,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:11:24,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:11:24,924 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:11:24,924 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:11:24,924 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:11:24,924 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:11:24,925 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:11:24,926 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:11:24,926 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:11:24,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:11:24,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:11:24,926 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:11:24,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:11:24,927 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:11:24,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:11:24,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:11:24,928 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:11:24,928 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:11:24,929 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:11:24,929 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:11:24,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:11:24,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:11:24,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:11:24,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:11:24,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:11:24,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:11:24,931 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:11:24,931 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:11:24,931 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:11:24,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:11:24,931 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:11:24,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:11:24,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:11:24,932 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:11:24,932 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:11:24,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:11:24,932 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:11:24,932 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:11:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:11:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:11:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:11:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:11:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:11:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:11:24,934 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:11:24,934 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:11:24,934 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:11:24,934 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:11:24,934 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:11:24,934 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:11:24,935 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:11:24,935 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:11:24,935 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:11:24,935 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:11:24,935 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:11:24,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:11:24,936 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:11:24,936 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:11:24,936 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:11:24,936 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:11:24,936 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:11:24,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:11:24,937 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:11:24,937 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:11:24,937 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:11:24,937 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:11:24,937 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:11:24,937 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:11:24,937 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:11:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:11:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:11:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:11:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:11:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:11:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:11:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:11:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:11:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:11:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:11:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:11:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:11:24,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:11:24,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:11:24,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:11:24,940 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:11:24,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:11:24,940 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:11:24,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:11:24,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:11:24,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:11:24,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:11:26,160 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:11:26,160 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:11:26,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:26 BoogieIcfgContainer [2020-09-25 13:11:26,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:11:26,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:11:26,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:11:26,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:11:26,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:11:23" (1/3) ... [2020-09-25 13:11:26,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef51cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:26, skipping insertion in model container [2020-09-25 13:11:26,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:24" (2/3) ... [2020-09-25 13:11:26,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef51cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:26, skipping insertion in model container [2020-09-25 13:11:26,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:26" (3/3) ... [2020-09-25 13:11:26,178 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2020-09-25 13:11:26,191 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:11:26,203 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:11:26,227 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:11:26,264 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:11:26,264 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:11:26,264 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:11:26,264 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:11:26,265 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:11:26,265 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:11:26,265 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:11:26,265 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:11:26,301 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-25 13:11:26,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 13:11:26,321 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:26,322 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 13:11:26,323 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:26,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:26,333 INFO L82 PathProgramCache]: Analyzing trace with hash 196536289, now seen corresponding path program 1 times [2020-09-25 13:11:26,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:26,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821650864] [2020-09-25 13:11:26,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:26,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:27,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:28,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:31,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:31,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:11:31,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:11:31,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 13:11:31,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:31,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:31,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:11:31,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:11:31,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 13:11:31,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:11:32,362 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:32,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:32,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:32,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:32,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:32,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:32,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-09-25 13:11:32,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:32,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:32,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:32,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:32,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:11:32,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:32,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:32,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:32,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:32,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:32,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:32,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:32,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:32,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:32,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:32,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:32,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:32,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:32,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:32,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:32,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:32,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:32,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:32,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:32,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:32,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:32,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:11:32,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:32,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:32,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:32,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:32,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:32,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:11:32,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:32,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:32,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:32,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:32,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:32,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:32,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:32,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:32,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:32,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:32,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:32,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:32,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:32,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:32,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:32,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 13:11:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:32,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:32,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:32,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:32,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:32,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:32,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:32,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:32,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:32,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 13:11:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:32,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:32,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:32,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:32,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:32,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:32,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:32,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:32,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:32,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:32,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:32,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:32,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 13:11:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:32,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:32,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:32,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:32,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:32,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:32,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:32,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:32,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:32,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:32,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:32,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:32,971 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 13:11:32,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821650864] [2020-09-25 13:11:32,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:32,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:11:32,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365526086] [2020-09-25 13:11:32,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:11:32,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:33,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:11:33,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:11:33,011 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 4 states. [2020-09-25 13:11:33,656 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:35,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:35,696 INFO L93 Difference]: Finished difference Result 610 states and 742 transitions. [2020-09-25 13:11:35,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:11:35,699 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 13:11:35,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:35,721 INFO L225 Difference]: With dead ends: 610 [2020-09-25 13:11:35,721 INFO L226 Difference]: Without dead ends: 429 [2020-09-25 13:11:35,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:11:35,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-25 13:11:35,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 366. [2020-09-25 13:11:35,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-09-25 13:11:35,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 407 transitions. [2020-09-25 13:11:35,927 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 407 transitions. Word has length 153 [2020-09-25 13:11:35,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:35,929 INFO L479 AbstractCegarLoop]: Abstraction has 366 states and 407 transitions. [2020-09-25 13:11:35,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:11:35,929 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 407 transitions. [2020-09-25 13:11:35,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 13:11:35,934 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:35,935 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 13:11:35,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:11:35,935 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:35,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:35,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1183316893, now seen corresponding path program 1 times [2020-09-25 13:11:35,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:35,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164171921] [2020-09-25 13:11:35,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:36,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:36,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:39,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:39,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 13:11:39,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:11:39,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3262 [2020-09-25 13:11:39,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:39,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:39,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:11:39,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:11:39,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 13:11:39,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:39,644 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:39,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:39,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:39,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:39,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:39,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:39,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 13:11:39,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:39,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:39,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:39,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:39,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:11:39,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:39,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:39,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:39,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:39,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:39,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:39,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:39,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:39,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:39,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:39,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:39,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:39,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:39,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:39,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:39,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:39,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:39,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:39,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:39,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:40,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:40,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:40,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:40,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:40,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:11:40,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:40,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:40,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:40,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:40,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:40,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:40,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:40,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:40,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:40,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:40,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:40,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:40,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:40,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:40,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:40,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:40,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:40,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:40,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:11:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:40,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:40,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:40,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:11:40,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:40,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:11:40,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:40,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:40,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:40,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:40,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:11:40,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:40,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:11:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:40,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:40,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:40,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:40,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:40,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:40,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:40,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:40,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:40,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:40,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:40,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:40,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:11:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:40,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:40,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:40,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:40,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:40,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:40,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:40,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:40,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:40,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:40,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:40,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:40,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 13:11:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:40,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:40,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:40,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:40,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:40,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:11:40,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:40,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:40,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:11:40,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:40,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:40,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:40,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 13:11:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:40,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:40,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:40,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:40,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:40,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:40,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:40,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:40,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:40,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:40,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:40,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:40,230 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 13:11:40,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164171921] [2020-09-25 13:11:40,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:40,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:11:40,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466453682] [2020-09-25 13:11:40,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:11:40,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:40,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:11:40,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:11:40,238 INFO L87 Difference]: Start difference. First operand 366 states and 407 transitions. Second operand 9 states. [2020-09-25 13:11:40,779 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:42,227 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:11:43,338 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 13:11:44,056 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 13:11:44,448 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:44,816 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:45,123 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:45,446 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:46,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:46,609 INFO L93 Difference]: Finished difference Result 1054 states and 1322 transitions. [2020-09-25 13:11:46,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:11:46,613 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 162 [2020-09-25 13:11:46,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:46,624 INFO L225 Difference]: With dead ends: 1054 [2020-09-25 13:11:46,624 INFO L226 Difference]: Without dead ends: 798 [2020-09-25 13:11:46,628 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 13:11:46,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-09-25 13:11:46,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 617. [2020-09-25 13:11:46,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2020-09-25 13:11:46,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 709 transitions. [2020-09-25 13:11:46,762 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 709 transitions. Word has length 162 [2020-09-25 13:11:46,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:46,763 INFO L479 AbstractCegarLoop]: Abstraction has 617 states and 709 transitions. [2020-09-25 13:11:46,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:11:46,763 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 709 transitions. [2020-09-25 13:11:46,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 13:11:46,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:46,768 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 13:11:46,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:11:46,768 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:46,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:46,769 INFO L82 PathProgramCache]: Analyzing trace with hash -593950700, now seen corresponding path program 1 times [2020-09-25 13:11:46,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:46,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852468761] [2020-09-25 13:11:46,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:46,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:46,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:47,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:51,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:51,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 13:11:51,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:11:51,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 13:11:51,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:51,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:11:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:11:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 13:11:51,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:52,230 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:52,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:52,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:52,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:52,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:52,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:52,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 13:11:52,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:52,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:52,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:52,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:11:52,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:52,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:52,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:52,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:52,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:52,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:52,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:52,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:52,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:52,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:52,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:52,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:11:52,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:52,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:52,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:52,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:52,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:52,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:11:52,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:52,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:52,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:52,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:52,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:52,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:52,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:52,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:52,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:52,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:52,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:52,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:11:52,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:52,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:52,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:52,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:52,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:52,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:52,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:52,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:52,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:52,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:52,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:52,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:52,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:52,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:52,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:52,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 13:11:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:52,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:52,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:52,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:11:52,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:52,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:52,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:52,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:11:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:52,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:52,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 13:11:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:52,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:52,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:52,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:11:52,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:52,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:52,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:52,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:11:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:52,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:52,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:11:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:52,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:52,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:52,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:52,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:52,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:52,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:52,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:52,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:52,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:52,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:52,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:11:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:52,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:52,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:52,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:52,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:52,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:52,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:52,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:52,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:52,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:52,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:52,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:52,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 13:11:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:52,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:52,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:52,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:52,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:52,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:52,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:52,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:52,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:52,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:52,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:52,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:52,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 13:11:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:52,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:52,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:52,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:52,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:52,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:52,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:52,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:52,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:52,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:52,802 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 13:11:52,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852468761] [2020-09-25 13:11:52,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:52,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:11:52,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572436853] [2020-09-25 13:11:52,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:11:52,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:52,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:11:52,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:11:52,805 INFO L87 Difference]: Start difference. First operand 617 states and 709 transitions. Second operand 6 states. [2020-09-25 13:11:53,292 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:54,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:54,096 INFO L93 Difference]: Finished difference Result 993 states and 1188 transitions. [2020-09-25 13:11:54,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:11:54,097 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 13:11:54,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:54,101 INFO L225 Difference]: With dead ends: 993 [2020-09-25 13:11:54,102 INFO L226 Difference]: Without dead ends: 465 [2020-09-25 13:11:54,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:11:54,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-09-25 13:11:54,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 435. [2020-09-25 13:11:54,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2020-09-25 13:11:54,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 472 transitions. [2020-09-25 13:11:54,158 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 472 transitions. Word has length 167 [2020-09-25 13:11:54,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:54,159 INFO L479 AbstractCegarLoop]: Abstraction has 435 states and 472 transitions. [2020-09-25 13:11:54,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:11:54,159 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 472 transitions. [2020-09-25 13:11:54,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 13:11:54,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:54,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:11:54,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:11:54,163 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:54,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:54,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1541185143, now seen corresponding path program 1 times [2020-09-25 13:11:54,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:54,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001422197] [2020-09-25 13:11:54,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:11:54,229 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:11:54,230 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:11:54,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:11:54,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:54 BoogieIcfgContainer [2020-09-25 13:11:54,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:11:54,265 INFO L168 Benchmark]: Toolchain (without parser) took 30359.47 ms. Allocated memory was 148.4 MB in the beginning and 574.6 MB in the end (delta: 426.2 MB). Free memory was 103.7 MB in the beginning and 403.6 MB in the end (delta: -299.9 MB). Peak memory consumption was 126.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:54,266 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:11:54,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.87 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 103.1 MB in the beginning and 172.8 MB in the end (delta: -69.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:54,268 INFO L168 Benchmark]: Boogie Preprocessor took 139.48 ms. Allocated memory is still 205.5 MB. Free memory was 172.8 MB in the beginning and 168.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:54,269 INFO L168 Benchmark]: RCFGBuilder took 1358.90 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 168.2 MB in the beginning and 171.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:54,269 INFO L168 Benchmark]: TraceAbstraction took 28093.31 ms. Allocated memory was 234.9 MB in the beginning and 574.6 MB in the end (delta: 339.7 MB). Free memory was 170.4 MB in the beginning and 403.6 MB in the end (delta: -233.2 MB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:54,273 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 758.87 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 103.1 MB in the beginning and 172.8 MB in the end (delta: -69.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.48 ms. Allocated memory is still 205.5 MB. Free memory was 172.8 MB in the beginning and 168.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1358.90 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 168.2 MB in the beginning and 171.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28093.31 ms. Allocated memory was 234.9 MB in the beginning and 574.6 MB in the end (delta: 339.7 MB). Free memory was 170.4 MB in the beginning and 403.6 MB in the end (delta: -233.2 MB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 346]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L558] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L755] int waterLevel = 1; [L756] int methaneLevelCritical = 0; [L844] int cleanupTimeShifts = 4; [L917] int retValue_acc ; [L918] int tmp ; [L922] FCALL select_helpers() [L923] FCALL select_features() [L924] CALL, EXPR valid_product() [L380] int retValue_acc ; [L383] retValue_acc = 1 [L384] return (retValue_acc); [L924] RET, EXPR valid_product() [L924] tmp = valid_product() [L926] COND TRUE \read(tmp) [L928] FCALL setup() [L929] CALL runTest() [L911] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L773] COND TRUE waterLevel < 2 [L774] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND TRUE \read(systemActive) [L137] CALL processEnvironment() [L157] int tmp ; [L160] COND FALSE !(\read(pumpRunning)) [L175] FCALL processEnvironment__wrappee__base() [L137] RET processEnvironment() [L143] CALL __utac_acc__Specification3_spec__1() [L309] int tmp ; [L310] int tmp___0 ; [L311] int tmp___1 ; [L315] CALL, EXPR isMethaneLevelCritical() [L794] int retValue_acc ; [L797] retValue_acc = methaneLevelCritical [L798] return (retValue_acc); [L315] RET, EXPR isMethaneLevelCritical() [L315] tmp = isMethaneLevelCritical() [L317] COND FALSE !(\read(tmp)) [L321] CALL, EXPR getWaterLevel() [L826] int retValue_acc ; [L829] retValue_acc = waterLevel [L830] return (retValue_acc); [L321] RET, EXPR getWaterLevel() [L321] tmp___0 = getWaterLevel() [L323] COND TRUE tmp___0 == 2 [L325] CALL, EXPR isPumpRunning() [L227] int retValue_acc ; [L230] retValue_acc = pumpRunning [L231] return (retValue_acc); [L325] RET, EXPR isPumpRunning() [L325] tmp___1 = isPumpRunning() [L327] COND FALSE !(\read(tmp___1)) [L331] CALL __automaton_fail() [L346] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 624 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 661 SDtfs, 1297 SDslu, 807 SDs, 0 SdLazy, 1786 SolverSat, 380 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=617occurred 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, 274 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 16.3s InterpolantComputationTime, 658 NumberOfCodeBlocks, 658 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 479 ConstructedInterpolants, 0 QuantifiedInterpolants, 204101 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...