/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:42:13,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:42:13,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:42:13,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:42:13,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:42:13,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:42:13,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:42:13,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:42:13,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:42:13,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:42:13,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:42:13,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:42:13,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:42:13,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:42:13,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:42:13,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:42:13,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:42:13,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:42:13,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:42:13,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:42:13,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:42:13,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:42:13,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:42:13,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:42:13,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:42:13,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:42:13,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:42:13,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:42:13,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:42:13,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:42:13,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:42:13,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:42:13,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:42:13,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:42:13,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:42:13,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:42:13,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:42:13,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:42:13,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:42:13,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:42:13,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:42:13,442 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 08:42:13,469 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:42:13,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:42:13,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:42:13,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:42:13,471 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:42:13,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:42:13,472 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:42:13,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:42:13,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:42:13,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:42:13,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:42:13,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:42:13,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:42:13,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:42:13,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:42:13,474 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:42:13,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:42:13,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:42:13,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:42:13,474 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:42:13,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:42:13,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:42:13,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:42:13,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:42:13,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:42:13,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:42:13,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:42:13,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:42:13,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:42:13,479 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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:42:13,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:42:14,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:42:14,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:42:14,009 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:42:14,010 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:42:14,011 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-09-25 08:42:14,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83a144b40/d3b4ea04a1e340d18819bcb8962ce9ab/FLAG697ac31f1 [2020-09-25 08:42:14,701 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:42:14,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-09-25 08:42:14,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83a144b40/d3b4ea04a1e340d18819bcb8962ce9ab/FLAG697ac31f1 [2020-09-25 08:42:14,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83a144b40/d3b4ea04a1e340d18819bcb8962ce9ab [2020-09-25 08:42:15,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:42:15,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:42:15,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:42:15,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:42:15,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:42:15,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:42:14" (1/1) ... [2020-09-25 08:42:15,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:15, skipping insertion in model container [2020-09-25 08:42:15,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:42:14" (1/1) ... [2020-09-25 08:42:15,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:42:15,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:42:15,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:42:15,597 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:42:15,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:42:15,856 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:42:15,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:15 WrapperNode [2020-09-25 08:42:15,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:42:15,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:42:15,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:42:15,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:42:15,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:15" (1/1) ... [2020-09-25 08:42:15,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:15" (1/1) ... [2020-09-25 08:42:15,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:15" (1/1) ... [2020-09-25 08:42:15,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:15" (1/1) ... [2020-09-25 08:42:15,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:15" (1/1) ... [2020-09-25 08:42:15,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:15" (1/1) ... [2020-09-25 08:42:15,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:15" (1/1) ... [2020-09-25 08:42:15,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:42:15,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:42:15,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:42:15,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:42:15,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:15" (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 08:42:16,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:42:16,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:42:16,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:42:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:42:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:42:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:42:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:42:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:42:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:42:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:42:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:42:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:42:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 08:42:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:42:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:42:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:42:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:42:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:42:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:42:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:42:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:42:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:42:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:42:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:42:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:42:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:42:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:42:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:42:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:42:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:42:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:42:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:42:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:42:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:42:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:42:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:42:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:42:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:42:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:42:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:42:16,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:42:16,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:42:16,056 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:42:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:42:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:42:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:42:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:42:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:42:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:42:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:42:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:42:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:42:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:42:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:42:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:42:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:42:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:42:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:42:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:42:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:42:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:42:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 08:42:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:42:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:42:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:42:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:42:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:42:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:42:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:42:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:42:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:42:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:42:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:42:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:42:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:42:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:42:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:42:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:42:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:42:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:42:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:42:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:42:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:42:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:42:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:42:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:42:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:42:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:42:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:42:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:42:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:42:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:42:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:42:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:42:17,200 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:42:17,201 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:42:17,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:42:17 BoogieIcfgContainer [2020-09-25 08:42:17,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:42:17,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:42:17,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:42:17,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:42:17,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:42:14" (1/3) ... [2020-09-25 08:42:17,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@180cf6cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:42:17, skipping insertion in model container [2020-09-25 08:42:17,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:15" (2/3) ... [2020-09-25 08:42:17,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@180cf6cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:42:17, skipping insertion in model container [2020-09-25 08:42:17,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:42:17" (3/3) ... [2020-09-25 08:42:17,222 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2020-09-25 08:42:17,234 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:42:17,247 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:42:17,271 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:42:17,303 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:42:17,303 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:42:17,303 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:42:17,303 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:42:17,303 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:42:17,303 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:42:17,304 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:42:17,304 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:42:17,332 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 08:42:17,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 08:42:17,352 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:42:17,358 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 08:42:17,358 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:42:17,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:42:17,367 INFO L82 PathProgramCache]: Analyzing trace with hash 396628182, now seen corresponding path program 1 times [2020-09-25 08:42:17,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:42:17,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489390697] [2020-09-25 08:42:17,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:42:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:17,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:18,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:19,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:22,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:22,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 08:42:22,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:42:22,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 08:42:22,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:22,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:22,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:22,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:42:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:22,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:42:23,216 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:42:23,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:42:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:23,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:23,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:23,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:42:23,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:23,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 08:42:23,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:23,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:23,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:23,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:42:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:23,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:23,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:23,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:23,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:23,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:42:23,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:23,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:23,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:23,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:23,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:23,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:23,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:42:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:23,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:23,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:23,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:23,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:23,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:42:23,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:23,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:23,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:23,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:23,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:42:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:23,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:23,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:23,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:23,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:23,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:42:23,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:23,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:23,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:23,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:23,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:23,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:23,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:42:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:23,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:23,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:23,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:23,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:23,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:23,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:23,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:23,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:42:23,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:42:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:23,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:23,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:23,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:23,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:23,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:23,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:23,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:23,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:23,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:42:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:23,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:23,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:23,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:23,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:23,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:42:23,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:23,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:23,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:23,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:23,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:23,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:23,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:42:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:23,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:23,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:23,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:23,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:23,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:42:23,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:23,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:23,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:23,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:23,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:23,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:23,585 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 08:42:23,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489390697] [2020-09-25 08:42:23,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:42:23,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:42:23,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673788159] [2020-09-25 08:42:23,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:42:23,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:42:23,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:42:23,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:42:23,623 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-09-25 08:42:25,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:42:25,088 INFO L93 Difference]: Finished difference Result 512 states and 611 transitions. [2020-09-25 08:42:25,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:42:25,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 08:42:25,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:42:25,112 INFO L225 Difference]: With dead ends: 512 [2020-09-25 08:42:25,112 INFO L226 Difference]: Without dead ends: 315 [2020-09-25 08:42:25,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:42:25,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-25 08:42:25,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-09-25 08:42:25,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-25 08:42:25,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 296 transitions. [2020-09-25 08:42:25,257 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 296 transitions. Word has length 153 [2020-09-25 08:42:25,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:42:25,267 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 296 transitions. [2020-09-25 08:42:25,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:42:25,268 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 296 transitions. [2020-09-25 08:42:25,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 08:42:25,280 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:42:25,280 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] [2020-09-25 08:42:25,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:42:25,281 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:42:25,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:42:25,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1765968117, now seen corresponding path program 1 times [2020-09-25 08:42:25,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:42:25,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506190352] [2020-09-25 08:42:25,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:42:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:25,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:25,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:27,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:30,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:30,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:42:30,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:42:30,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:42:30,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:30,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:30,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:30,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:42:30,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:42:30,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:30,676 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:42:30,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:42:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:30,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:30,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:30,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:42:30,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:30,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 08:42:30,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:30,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:30,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:42:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:30,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:30,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:30,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:30,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:30,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:30,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:30,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:30,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:42:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:30,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:30,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:30,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:30,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:30,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:30,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:30,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:30,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:30,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:30,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:42:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:30,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:30,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:30,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:30,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:30,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:42:30,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:30,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:30,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:30,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:42:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:30,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:30,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:30,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:30,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:30,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:30,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:30,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:30,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:30,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:30,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:30,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:30,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 08:42:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:30,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:30,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:30,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:30,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:30,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:30,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:30,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:30,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:30,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:30,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 08:42:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:30,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:30,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:30,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:30,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:30,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:30,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:30,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:30,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:30,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:30,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:30,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:30,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 08:42:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:30,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:30,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:30,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:30,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:30,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:30,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:30,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:30,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:30,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:30,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:30,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:42:30,936 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 08:42:30,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506190352] [2020-09-25 08:42:30,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:42:30,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:42:30,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474828465] [2020-09-25 08:42:30,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:42:30,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:42:30,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:42:30,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:42:30,942 INFO L87 Difference]: Start difference. First operand 271 states and 296 transitions. Second operand 4 states. [2020-09-25 08:42:31,593 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:42:32,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:42:32,810 INFO L93 Difference]: Finished difference Result 419 states and 474 transitions. [2020-09-25 08:42:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:42:32,811 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 08:42:32,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:42:32,816 INFO L225 Difference]: With dead ends: 419 [2020-09-25 08:42:32,816 INFO L226 Difference]: Without dead ends: 298 [2020-09-25 08:42:32,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:42:32,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-25 08:42:32,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-09-25 08:42:32,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 08:42:32,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions. [2020-09-25 08:42:32,873 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 154 [2020-09-25 08:42:32,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:42:32,873 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 283 transitions. [2020-09-25 08:42:32,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:42:32,874 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions. [2020-09-25 08:42:32,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 08:42:32,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:42:32,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:42:32,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:42:32,881 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:42:32,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:42:32,881 INFO L82 PathProgramCache]: Analyzing trace with hash 308056419, now seen corresponding path program 1 times [2020-09-25 08:42:32,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:42:32,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083047365] [2020-09-25 08:42:32,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:42:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:32,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:33,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:36,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:36,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 08:42:36,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:42:36,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3112 [2020-09-25 08:42:36,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:36,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:36,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 08:42:36,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:42:36,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:36,457 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:42:36,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:42:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:36,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:36,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:36,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:42:36,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:36,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 08:42:36,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:36,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:36,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:36,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:36,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:36,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:36,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:42:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:36,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:36,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:36,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:36,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:36,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:42:36,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:36,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:36,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:36,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:36,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:36,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:42:36,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:42:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:36,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:36,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:36,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:36,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:36,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:42:36,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:36,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:36,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:36,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:36,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:42:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:36,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:36,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:36,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:36,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:36,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:42:36,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:36,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:36,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:42:36,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:42:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:36,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:36,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:36,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:36,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:36,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:36,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:36,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:36,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:36,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:36,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:36,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:42:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:36,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:36,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:36,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:42:36,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:36,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:42:36,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:36,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:36,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:36,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:36,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:42:36,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:36,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:42:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:36,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:36,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:36,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:36,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:36,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 08:42:36,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:36,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:36,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:36,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:36,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:36,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 08:42:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:36,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:36,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:36,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:36,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:36,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:42:36,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:36,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:36,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:36,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:36,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:36,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:36,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 08:42:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:36,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:36,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:36,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:36,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:36,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:36,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:36,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:36,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:36,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:36,817 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 08:42:36,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083047365] [2020-09-25 08:42:36,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:42:36,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:42:36,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429639588] [2020-09-25 08:42:36,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:42:36,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:42:36,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:42:36,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:42:36,825 INFO L87 Difference]: Start difference. First operand 261 states and 283 transitions. Second operand 5 states. [2020-09-25 08:42:37,621 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:42:39,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:42:39,681 INFO L93 Difference]: Finished difference Result 633 states and 736 transitions. [2020-09-25 08:42:39,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:42:39,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 08:42:39,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:42:39,687 INFO L225 Difference]: With dead ends: 633 [2020-09-25 08:42:39,687 INFO L226 Difference]: Without dead ends: 482 [2020-09-25 08:42:39,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:42:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-25 08:42:39,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 402. [2020-09-25 08:42:39,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 08:42:39,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 447 transitions. [2020-09-25 08:42:39,789 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 447 transitions. Word has length 167 [2020-09-25 08:42:39,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:42:39,789 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 447 transitions. [2020-09-25 08:42:39,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:42:39,790 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 447 transitions. [2020-09-25 08:42:39,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 08:42:39,793 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:42:39,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:42:39,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:42:39,794 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:42:39,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:42:39,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1931820316, now seen corresponding path program 1 times [2020-09-25 08:42:39,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:42:39,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262193734] [2020-09-25 08:42:39,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:42:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:39,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:41,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:41,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 08:42:41,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:41,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1725 [2020-09-25 08:42:41,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:41,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 08:42:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 08:42:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-25 08:42:41,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:41,979 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:42:41,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:42:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:42,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:42,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:42,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:42:42,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:42,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-25 08:42:42,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:42,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:42,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 08:42:42,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:42,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:42:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:42,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:42,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:42,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:42,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:42,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:42:42,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:42,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:42,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:42,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:42,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:42:42,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:42,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:42:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:42,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:42,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:42,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:42,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:42,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:42,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:42,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:42,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:42,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:42,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:42:42,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:42,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:42:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:42,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:42,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:42,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:42,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:42,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:42:42,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:42,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:42,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:42,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:42,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:42:42,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:42,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:42:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:42,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:42,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:42,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:42,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:42,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:42,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:42,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:42,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:42,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:42,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:42:42,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:42,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:42:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:42,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:42,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:42,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:42:42,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:42,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:42,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:42,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:42:42,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:42,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 08:42:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:42,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:42,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:42,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:42,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:42,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:42,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:42,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:42,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:42,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:42,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:42:42,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:42,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 08:42:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:42,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:42,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:42,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:42,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:42,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:42:42,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:42,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:42,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:42:42,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:42,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:42:42,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:42,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 08:42:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:42,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:42,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:42,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:42,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:42,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:42,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:42,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:42,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:42,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:42,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:42,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:42,432 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 08:42:42,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262193734] [2020-09-25 08:42:42,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:42:42,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:42:42,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912490100] [2020-09-25 08:42:42,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:42:42,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:42:42,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:42:42,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:42:42,437 INFO L87 Difference]: Start difference. First operand 402 states and 447 transitions. Second operand 9 states. [2020-09-25 08:42:43,123 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:42:45,258 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:42:45,627 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:42:45,987 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:42:46,383 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:42:46,739 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:42:47,066 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:42:47,368 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:42:48,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:42:48,356 INFO L93 Difference]: Finished difference Result 1072 states and 1291 transitions. [2020-09-25 08:42:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 08:42:48,358 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-25 08:42:48,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:42:48,364 INFO L225 Difference]: With dead ends: 1072 [2020-09-25 08:42:48,364 INFO L226 Difference]: Without dead ends: 780 [2020-09-25 08:42:48,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:42:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2020-09-25 08:42:48,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 681. [2020-09-25 08:42:48,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2020-09-25 08:42:48,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 777 transitions. [2020-09-25 08:42:48,470 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 777 transitions. Word has length 172 [2020-09-25 08:42:48,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:42:48,471 INFO L479 AbstractCegarLoop]: Abstraction has 681 states and 777 transitions. [2020-09-25 08:42:48,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:42:48,471 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 777 transitions. [2020-09-25 08:42:48,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 08:42:48,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:42:48,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:42:48,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:42:48,477 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:42:48,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:42:48,477 INFO L82 PathProgramCache]: Analyzing trace with hash 2092402527, now seen corresponding path program 1 times [2020-09-25 08:42:48,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:42:48,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980059881] [2020-09-25 08:42:48,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:42:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:48,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:48,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:50,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:51,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 08:42:53,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:42:53,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 08:42:53,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:42:53,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 08:42:53,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:42:53,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:53,845 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:42:53,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:42:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:42:53,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 08:42:53,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:53,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:53,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:42:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:53,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:42:53,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:53,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:53,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:42:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:53,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:42:53,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:53,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:53,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:42:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:53,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:53,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:53,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:53,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:42:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:53,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:42:53,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:54,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:42:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:54,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:54,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:54,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:42:54,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:54,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:54,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:54,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:54,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:54,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:42:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:54,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:54,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:54,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:42:54,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:54,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:42:54,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:54,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:54,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:42:54,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:54,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 08:42:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:54,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:54,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:54,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:54,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:54,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:54,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:54,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:54,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:54,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:54,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:42:54,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:54,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 08:42:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:54,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:54,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:54,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:54,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:54,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:54,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:54,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:54,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:42:54,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:54,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 08:42:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:54,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:54,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:54,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:54,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:54,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:42:54,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:54,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:42:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:42:54,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:54,175 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 08:42:54,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980059881] [2020-09-25 08:42:54,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:42:54,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:42:54,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435689831] [2020-09-25 08:42:54,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:42:54,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:42:54,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:42:54,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:42:54,178 INFO L87 Difference]: Start difference. First operand 681 states and 777 transitions. Second operand 10 states. [2020-09-25 08:42:55,379 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:42:55,720 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-25 08:42:56,665 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-25 08:42:58,111 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 08:42:58,454 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 08:42:58,888 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:42:59,186 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:42:59,523 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:42:59,801 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:43:01,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:43:01,391 INFO L93 Difference]: Finished difference Result 1774 states and 2188 transitions. [2020-09-25 08:43:01,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 08:43:01,392 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 177 [2020-09-25 08:43:01,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:43:01,400 INFO L225 Difference]: With dead ends: 1774 [2020-09-25 08:43:01,400 INFO L226 Difference]: Without dead ends: 1203 [2020-09-25 08:43:01,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-09-25 08:43:01,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2020-09-25 08:43:01,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1023. [2020-09-25 08:43:01,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2020-09-25 08:43:01,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1174 transitions. [2020-09-25 08:43:01,537 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1174 transitions. Word has length 177 [2020-09-25 08:43:01,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:43:01,538 INFO L479 AbstractCegarLoop]: Abstraction has 1023 states and 1174 transitions. [2020-09-25 08:43:01,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:43:01,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1174 transitions. [2020-09-25 08:43:01,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 08:43:01,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:43:01,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:43:01,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:43:01,544 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:43:01,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:43:01,544 INFO L82 PathProgramCache]: Analyzing trace with hash 230448906, now seen corresponding path program 1 times [2020-09-25 08:43:01,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:43:01,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336140003] [2020-09-25 08:43:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:43:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 08:43:01,613 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 08:43:01,613 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 08:43:01,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:43:01,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:43:01 BoogieIcfgContainer [2020-09-25 08:43:01,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:43:01,649 INFO L168 Benchmark]: Toolchain (without parser) took 46645.49 ms. Allocated memory was 146.3 MB in the beginning and 689.4 MB in the end (delta: 543.2 MB). Free memory was 101.4 MB in the beginning and 493.3 MB in the end (delta: -391.9 MB). Peak memory consumption was 151.2 MB. Max. memory is 7.1 GB. [2020-09-25 08:43:01,650 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 08:43:01,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 845.21 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 100.7 MB in the beginning and 172.7 MB in the end (delta: -71.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-25 08:43:01,652 INFO L168 Benchmark]: Boogie Preprocessor took 102.09 ms. Allocated memory is still 202.9 MB. Free memory was 172.7 MB in the beginning and 168.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 08:43:01,653 INFO L168 Benchmark]: RCFGBuilder took 1251.22 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 168.4 MB in the beginning and 177.1 MB in the end (delta: -8.7 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2020-09-25 08:43:01,654 INFO L168 Benchmark]: TraceAbstraction took 44434.99 ms. Allocated memory was 235.9 MB in the beginning and 689.4 MB in the end (delta: 453.5 MB). Free memory was 177.1 MB in the beginning and 493.3 MB in the end (delta: -316.2 MB). Peak memory consumption was 137.3 MB. Max. memory is 7.1 GB. [2020-09-25 08:43:01,659 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 845.21 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 100.7 MB in the beginning and 172.7 MB in the end (delta: -71.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.09 ms. Allocated memory is still 202.9 MB. Free memory was 172.7 MB in the beginning and 168.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1251.22 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 168.4 MB in the beginning and 177.1 MB in the end (delta: -8.7 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44434.99 ms. Allocated memory was 235.9 MB in the beginning and 689.4 MB in the end (delta: 453.5 MB). Free memory was 177.1 MB in the beginning and 493.3 MB in the end (delta: -316.2 MB). Peak memory consumption was 137.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 [L538] COND TRUE 1 [L540] COND TRUE splverifierCounter < 4 [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) [L550] CALL waterRise() [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 [L550] RET waterRise() [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) [L578] CALL stopSystem() [L508] COND FALSE !(\read(pumpRunning)) [L515] systemActive = 0 [L578] RET stopSystem() [L585] CALL timeShift() [L334] COND FALSE !(\read(pumpRunning)) [L341] COND FALSE !(\read(systemActive)) [L349] CALL __utac_acc__Specification3_spec__1() [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L190] CALL, EXPR isMethaneLevelCritical() [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); [L190] RET, EXPR isMethaneLevelCritical() [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L196] CALL, EXPR getWaterLevel() [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); [L196] RET, EXPR getWaterLevel() [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 [L200] CALL, EXPR isPumpRunning() [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); [L200] RET, EXPR isPumpRunning() [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) [L206] CALL __automaton_fail() [L221] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 634 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 44.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 19.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1448 SDtfs, 1771 SDslu, 1884 SDs, 0 SdLazy, 4333 SolverSat, 656 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1023occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 440 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.3s InterpolantComputationTime, 1000 NumberOfCodeBlocks, 1000 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 330442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...