/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=0.2 --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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:55:36,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:55:36,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:55:36,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:55:36,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:55:36,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:55:36,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:55:36,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:55:36,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:55:36,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:55:36,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:55:36,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:55:36,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:55:36,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:55:36,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:55:36,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:55:36,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:55:36,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:55:36,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:55:36,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:55:36,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:55:36,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:55:36,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:55:36,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:55:36,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:55:36,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:55:36,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:55:36,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:55:36,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:55:36,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:55:36,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:55:36,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:55:36,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:55:36,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:55:36,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:55:36,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:55:36,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:55:36,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:55:36,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:55:36,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:55:36,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:55:36,427 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 10:55:36,471 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:55:36,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:55:36,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:55:36,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:55:36,473 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:55:36,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:55:36,474 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:55:36,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:55:36,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:55:36,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:55:36,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:55:36,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:55:36,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:55:36,476 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:55:36,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:55:36,477 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:55:36,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:55:36,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:55:36,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:55:36,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:55:36,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:55:36,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:55:36,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:55:36,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:55:36,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:55:36,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:55:36,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:55:36,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:55:36,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:55:36,480 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 10:55:36,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:55:36,972 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:55:36,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:55:36,984 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:55:36,984 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:55:36,986 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-09-25 10:55:37,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5eeb5ee2f/ba36dda0e378482cb36383ee1105a2b3/FLAGbf5dff45e [2020-09-25 10:55:37,649 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:55:37,649 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-09-25 10:55:37,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5eeb5ee2f/ba36dda0e378482cb36383ee1105a2b3/FLAGbf5dff45e [2020-09-25 10:55:37,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5eeb5ee2f/ba36dda0e378482cb36383ee1105a2b3 [2020-09-25 10:55:37,914 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:55:37,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:55:37,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:55:37,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:55:37,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:55:37,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:55:37" (1/1) ... [2020-09-25 10:55:37,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:37, skipping insertion in model container [2020-09-25 10:55:37,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:55:37" (1/1) ... [2020-09-25 10:55:37,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:55:37,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:55:38,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:55:38,476 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:55:38,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:55:38,654 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:55:38,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:38 WrapperNode [2020-09-25 10:55:38,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:55:38,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:55:38,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:55:38,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:55:38,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:38" (1/1) ... [2020-09-25 10:55:38,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:38" (1/1) ... [2020-09-25 10:55:38,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:38" (1/1) ... [2020-09-25 10:55:38,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:38" (1/1) ... [2020-09-25 10:55:38,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:38" (1/1) ... [2020-09-25 10:55:38,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:38" (1/1) ... [2020-09-25 10:55:38,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:38" (1/1) ... [2020-09-25 10:55:38,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:55:38,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:55:38,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:55:38,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:55:38,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:38" (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 10:55:38,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:55:38,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:55:38,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:55:38,885 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:55:38,885 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:55:38,885 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:55:38,885 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:55:38,886 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:55:38,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:55:38,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:55:38,887 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:55:38,887 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 10:55:38,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:55:38,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:55:38,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:55:38,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:55:38,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:55:38,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:55:38,889 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:55:38,889 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:55:38,889 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:55:38,890 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:55:38,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:55:38,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:55:38,890 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:55:38,891 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:55:38,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:55:38,891 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:55:38,892 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:55:38,892 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:55:38,892 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:55:38,892 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:55:38,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:55:38,892 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:55:38,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:55:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:55:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:55:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:55:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:55:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:55:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 10:55:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:55:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:55:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:55:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:55:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:55:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:55:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:55:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:55:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:55:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:55:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:55:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:55:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:55:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:55:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:55:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:55:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:55:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:55:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:55:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:55:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:55:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:55:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:55:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:55:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:55:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:55:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:55:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:55:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:55:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:55:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:55:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:55:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:55:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:55:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:55:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:55:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:55:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:55:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:55:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:55:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:55:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:55:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:55:40,088 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:55:40,089 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:55:40,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:55:40 BoogieIcfgContainer [2020-09-25 10:55:40,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:55:40,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:55:40,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:55:40,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:55:40,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:55:37" (1/3) ... [2020-09-25 10:55:40,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3129ddc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:55:40, skipping insertion in model container [2020-09-25 10:55:40,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:38" (2/3) ... [2020-09-25 10:55:40,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3129ddc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:55:40, skipping insertion in model container [2020-09-25 10:55:40,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:55:40" (3/3) ... [2020-09-25 10:55:40,105 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-09-25 10:55:40,117 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:55:40,129 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:55:40,152 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:55:40,184 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:55:40,184 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:55:40,184 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:55:40,184 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:55:40,184 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:55:40,185 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:55:40,185 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:55:40,185 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:55:40,214 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states. [2020-09-25 10:55:40,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 10:55:40,232 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:55:40,234 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 10:55:40,235 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:55:40,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:55:40,242 INFO L82 PathProgramCache]: Analyzing trace with hash -995917748, now seen corresponding path program 1 times [2020-09-25 10:55:40,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:55:40,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017549929] [2020-09-25 10:55:40,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:55:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:40,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:40,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:42,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:45,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:45,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 10:55:45,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:55:45,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 10:55:45,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:45,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:45,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:55:45,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:55:45,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 10:55:45,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:55:46,105 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:55:46,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:55:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:46,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:46,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:46,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:55:46,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:46,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 10:55:46,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:46,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:46,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:46,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:46,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:55:46,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:46,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:55:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:46,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:46,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:46,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:46,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:46,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:55:46,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:46,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:46,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:46,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:46,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:46,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:46,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:55:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:46,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:46,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:46,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:46,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:46,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:55:46,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:46,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:46,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:46,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:55:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:46,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:46,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:46,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:46,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:46,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:55:46,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:46,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:46,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:46,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:55:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:46,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:46,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:46,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:46,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:46,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:55:46,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:46,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:46,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:46,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:46,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:46,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:46,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 10:55:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:46,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:46,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:46,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:46,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:46,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:55:46,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:46,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:46,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:46,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:46,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:46,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 10:55:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:46,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:46,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:46,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:46,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:46,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:55:46,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:46,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:46,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:55:46,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:46,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:46,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:46,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 10:55:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:46,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:46,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:46,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:46,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:46,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:55:46,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:46,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:46,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:46,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:55:46,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:46,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:46,752 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 10:55:46,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017549929] [2020-09-25 10:55:46,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:55:46,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:55:46,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184618016] [2020-09-25 10:55:46,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:55:46,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:55:46,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:55:46,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:55:46,790 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 8 states. [2020-09-25 10:55:47,436 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:55:48,776 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:55:49,100 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:49,484 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:55:49,829 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:55:50,145 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:50,401 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:55:50,727 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:55:51,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:55:51,538 INFO L93 Difference]: Finished difference Result 483 states and 591 transitions. [2020-09-25 10:55:51,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:55:51,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 10:55:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:55:51,563 INFO L225 Difference]: With dead ends: 483 [2020-09-25 10:55:51,564 INFO L226 Difference]: Without dead ends: 335 [2020-09-25 10:55:51,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:55:51,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-25 10:55:51,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 300. [2020-09-25 10:55:51,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-09-25 10:55:51,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 337 transitions. [2020-09-25 10:55:51,691 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 337 transitions. Word has length 153 [2020-09-25 10:55:51,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:55:51,692 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 337 transitions. [2020-09-25 10:55:51,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:55:51,692 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 337 transitions. [2020-09-25 10:55:51,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 10:55:51,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:55:51,699 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] [2020-09-25 10:55:51,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:55:51,700 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:55:51,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:55:51,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1019501956, now seen corresponding path program 1 times [2020-09-25 10:55:51,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:55:51,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100431867] [2020-09-25 10:55:51,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:55:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:51,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 10:55:53,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1339 [2020-09-25 10:55:53,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:55:53,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 10:55:53,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:55:53,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,477 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:55:53,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:55:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:55:53,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 10:55:53,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:53,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:53,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:55:53,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:55:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:53,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:53,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:53,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:55:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:53,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:53,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:53,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:53,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:53,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:55:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:53,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:55:53,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:53,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:53,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:53,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:55:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:53,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:53,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:53,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 10:55:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:55:53,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:55:53,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:53,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:55:53,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:55:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:53,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:53,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:53,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:55:53,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 10:55:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:53,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:53,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:53,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:55:53,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:53,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 10:55:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:53,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:53,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:53,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:53,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:53,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:53,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:53,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:53,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:53,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:55:53,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:53,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:53,973 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 10:55:53,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100431867] [2020-09-25 10:55:53,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:55:53,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:55:53,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586382192] [2020-09-25 10:55:53,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:55:53,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:55:53,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:55:53,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:55:53,978 INFO L87 Difference]: Start difference. First operand 300 states and 337 transitions. Second operand 5 states. [2020-09-25 10:55:54,482 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:55:56,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:55:56,100 INFO L93 Difference]: Finished difference Result 715 states and 858 transitions. [2020-09-25 10:55:56,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:55:56,101 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 10:55:56,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:55:56,107 INFO L225 Difference]: With dead ends: 715 [2020-09-25 10:55:56,108 INFO L226 Difference]: Without dead ends: 525 [2020-09-25 10:55:56,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:55:56,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-09-25 10:55:56,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 469. [2020-09-25 10:55:56,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-09-25 10:55:56,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 539 transitions. [2020-09-25 10:55:56,200 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 539 transitions. Word has length 168 [2020-09-25 10:55:56,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:55:56,201 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 539 transitions. [2020-09-25 10:55:56,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:55:56,201 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 539 transitions. [2020-09-25 10:55:56,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 10:55:56,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:55:56,207 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 10:55:56,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:55:56,207 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:55:56,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:55:56,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1463715840, now seen corresponding path program 1 times [2020-09-25 10:55:56,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:55:56,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956135261] [2020-09-25 10:55:56,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:55:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:56,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:56,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:58,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:58,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:01,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:01,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 10:56:01,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:56:01,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 10:56:01,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:01,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:01,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 10:56:01,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:56:01,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 10:56:01,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:01,600 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:56:01,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:56:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:01,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:01,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:01,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:56:01,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:01,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 10:56:01,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:01,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:01,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:01,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:01,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:56:01,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:01,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:56:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:01,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:01,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:01,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:01,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:01,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:01,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:01,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:01,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:01,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:01,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:01,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:01,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:56:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:01,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:01,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:01,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:01,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:01,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:01,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:01,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:01,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:01,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:01,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:01,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:01,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:56:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:01,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:01,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:01,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:01,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:01,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:56:01,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:01,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:01,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:01,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:56:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:01,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:01,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:01,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:01,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:01,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:01,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:01,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:01,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:01,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:01,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:01,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:01,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 10:56:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:01,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:01,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:01,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:56:01,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:01,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:56:01,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:01,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:01,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:56:01,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:56:01,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:56:01,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:02,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 10:56:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:02,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:02,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:02,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:02,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:02,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:02,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:02,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:02,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:02,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:56:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:02,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:02,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:02,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:02,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:02,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:56:02,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:02,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:02,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:02,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:02,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:02,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:02,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 10:56:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:02,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:02,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:02,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:02,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:02,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 10:56:02,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:02,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:02,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:56:02,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:02,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:02,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:56:02,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 10:56:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:02,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:02,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:02,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:02,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:02,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:56:02,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:02,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:02,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:02,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:02,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:02,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:02,187 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 10:56:02,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956135261] [2020-09-25 10:56:02,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:56:02,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 10:56:02,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085989653] [2020-09-25 10:56:02,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 10:56:02,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:56:02,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 10:56:02,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 10:56:02,191 INFO L87 Difference]: Start difference. First operand 469 states and 539 transitions. Second operand 12 states. [2020-09-25 10:56:02,747 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:56:03,715 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:56:04,658 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 10:56:05,352 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:05,737 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:56:06,121 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:56:06,485 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:56:06,795 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:56:07,163 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:56:07,475 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:56:07,864 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:56:08,235 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:56:08,584 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:56:08,953 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:56:09,350 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:10,066 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-25 10:56:10,721 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 194 [2020-09-25 10:56:11,375 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 10:56:11,693 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:12,375 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 196 [2020-09-25 10:56:12,941 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-09-25 10:56:13,593 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 10:56:15,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:56:15,111 INFO L93 Difference]: Finished difference Result 1067 states and 1341 transitions. [2020-09-25 10:56:15,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-25 10:56:15,111 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 162 [2020-09-25 10:56:15,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:56:15,120 INFO L225 Difference]: With dead ends: 1067 [2020-09-25 10:56:15,120 INFO L226 Difference]: Without dead ends: 861 [2020-09-25 10:56:15,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=312, Invalid=1020, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 10:56:15,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-09-25 10:56:15,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 740. [2020-09-25 10:56:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-09-25 10:56:15,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 874 transitions. [2020-09-25 10:56:15,270 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 874 transitions. Word has length 162 [2020-09-25 10:56:15,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:56:15,271 INFO L479 AbstractCegarLoop]: Abstraction has 740 states and 874 transitions. [2020-09-25 10:56:15,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 10:56:15,271 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 874 transitions. [2020-09-25 10:56:15,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 10:56:15,276 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:56:15,277 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 10:56:15,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:56:15,277 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:56:15,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:56:15,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1542564584, now seen corresponding path program 1 times [2020-09-25 10:56:15,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:56:15,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569527908] [2020-09-25 10:56:15,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:56:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:15,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:15,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:18,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:19,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:20,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:20,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 10:56:20,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:56:20,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 10:56:20,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:20,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 10:56:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:56:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 10:56:20,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:20,764 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:56:20,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:56:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:20,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:21,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:56:21,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:21,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-09-25 10:56:21,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:21,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:21,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:21,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:56:21,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:21,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:56:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:21,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:21,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:21,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:21,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:21,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:21,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:21,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:21,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:56:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:21,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:21,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:21,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:21,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:21,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:21,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:21,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:21,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:56:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:21,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:21,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:21,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:21,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:56:21,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:21,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:21,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:21,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:21,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:21,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:21,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:56:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:21,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:21,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:21,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:21,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:21,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:21,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:21,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:21,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 10:56:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:21,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:21,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:56:21,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:56:21,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 10:56:21,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:21,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:21,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:56:21,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:56:21,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:56:21,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:21,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 10:56:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:21,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:21,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:56:21,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:21,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:56:21,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:21,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:56:21,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:56:21,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:56:21,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:21,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 10:56:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:21,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:21,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:21,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:21,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:21,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:21,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:21,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:21,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:21,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:21,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:21,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 10:56:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:21,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:21,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:21,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:21,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:56:21,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:21,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:21,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:21,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 10:56:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:21,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:21,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:21,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:21,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:56:21,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:21,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:21,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:56:21,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:21,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:21,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:21,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 10:56:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:21,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:21,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:21,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:21,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:21,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:21,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:21,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:21,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:21,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:21,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:21,591 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 10:56:21,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569527908] [2020-09-25 10:56:21,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:56:21,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 10:56:21,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608578283] [2020-09-25 10:56:21,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 10:56:21,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:56:21,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 10:56:21,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:56:21,595 INFO L87 Difference]: Start difference. First operand 740 states and 874 transitions. Second operand 13 states. [2020-09-25 10:56:22,239 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:56:23,139 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:56:23,996 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:24,341 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:56:24,690 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:25,055 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:56:25,394 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:25,828 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:26,194 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:56:27,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:56:27,701 INFO L93 Difference]: Finished difference Result 1708 states and 2222 transitions. [2020-09-25 10:56:27,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 10:56:27,703 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 176 [2020-09-25 10:56:27,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:56:27,710 INFO L225 Difference]: With dead ends: 1708 [2020-09-25 10:56:27,711 INFO L226 Difference]: Without dead ends: 1140 [2020-09-25 10:56:27,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2020-09-25 10:56:27,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2020-09-25 10:56:27,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 779. [2020-09-25 10:56:27,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2020-09-25 10:56:27,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 879 transitions. [2020-09-25 10:56:27,826 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 879 transitions. Word has length 176 [2020-09-25 10:56:27,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:56:27,826 INFO L479 AbstractCegarLoop]: Abstraction has 779 states and 879 transitions. [2020-09-25 10:56:27,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 10:56:27,827 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 879 transitions. [2020-09-25 10:56:27,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 10:56:27,830 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:56:27,830 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] [2020-09-25 10:56:27,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:56:27,831 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:56:27,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:56:27,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1257129521, now seen corresponding path program 1 times [2020-09-25 10:56:27,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:56:27,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495845887] [2020-09-25 10:56:27,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:56:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 10:56:27,895 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 10:56:27,895 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 10:56:27,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:56:27,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:56:27 BoogieIcfgContainer [2020-09-25 10:56:27,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:56:27,931 INFO L168 Benchmark]: Toolchain (without parser) took 50015.08 ms. Allocated memory was 142.6 MB in the beginning and 662.7 MB in the end (delta: 520.1 MB). Free memory was 103.6 MB in the beginning and 311.8 MB in the end (delta: -208.2 MB). Peak memory consumption was 311.9 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:27,932 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 122.8 MB in the beginning and 122.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 10:56:27,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.98 ms. Allocated memory was 142.6 MB in the beginning and 206.0 MB in the end (delta: 63.4 MB). Free memory was 103.0 MB in the beginning and 176.9 MB in the end (delta: -73.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:27,934 INFO L168 Benchmark]: Boogie Preprocessor took 99.45 ms. Allocated memory is still 206.0 MB. Free memory was 176.9 MB in the beginning and 172.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:27,935 INFO L168 Benchmark]: RCFGBuilder took 1340.56 ms. Allocated memory was 206.0 MB in the beginning and 233.3 MB in the end (delta: 27.3 MB). Free memory was 172.4 MB in the beginning and 176.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:27,936 INFO L168 Benchmark]: TraceAbstraction took 47831.63 ms. Allocated memory was 233.3 MB in the beginning and 662.7 MB in the end (delta: 429.4 MB). Free memory was 176.8 MB in the beginning and 311.8 MB in the end (delta: -135.0 MB). Peak memory consumption was 294.4 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:27,939 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 122.8 MB in the beginning and 122.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.98 ms. Allocated memory was 142.6 MB in the beginning and 206.0 MB in the end (delta: 63.4 MB). Free memory was 103.0 MB in the beginning and 176.9 MB in the end (delta: -73.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.45 ms. Allocated memory is still 206.0 MB. Free memory was 176.9 MB in the beginning and 172.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1340.56 ms. Allocated memory was 206.0 MB in the beginning and 233.3 MB in the end (delta: 27.3 MB). Free memory was 172.4 MB in the beginning and 176.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 47831.63 ms. Allocated memory was 233.3 MB in the beginning and 662.7 MB in the end (delta: 429.4 MB). Free memory was 176.8 MB in the beginning and 311.8 MB in the end (delta: -135.0 MB). Peak memory consumption was 294.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 650]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L119] int pumpRunning = 0; [L120] int systemActive = 1; [L411] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L690] int cleanupTimeShifts = 4; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L763] int retValue_acc ; [L764] int tmp ; [L768] FCALL select_helpers() [L769] FCALL select_features() [L770] CALL, EXPR valid_product() [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); [L770] RET, EXPR valid_product() [L770] tmp = valid_product() [L772] COND TRUE \read(tmp) [L774] FCALL setup() [L775] CALL runTest() [L757] 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() [L804] COND TRUE waterLevel < 2 [L805] 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() [L127] COND FALSE !(\read(pumpRunning)) [L134] COND TRUE \read(systemActive) [L136] FCALL processEnvironment() [L142] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L825] int retValue_acc ; [L828] retValue_acc = methaneLevelCritical [L829] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L182] int retValue_acc ; [L185] retValue_acc = pumpRunning [L186] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L650] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 584 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 47.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 25.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 915 SDtfs, 1817 SDslu, 2785 SDs, 0 SdLazy, 4726 SolverSat, 665 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 98 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 15.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=779occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 573 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 20.3s InterpolantComputationTime, 830 NumberOfCodeBlocks, 830 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 655 ConstructedInterpolants, 0 QuantifiedInterpolants, 302830 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...