/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=0.8 --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_spec2_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:30:38,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:30:38,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:30:38,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:30:38,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:30:38,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:30:38,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:30:38,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:30:38,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:30:38,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:30:38,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:30:38,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:30:38,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:30:38,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:30:38,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:30:38,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:30:38,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:30:38,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:30:38,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:30:38,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:30:38,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:30:38,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:30:38,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:30:38,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:30:38,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:30:38,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:30:38,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:30:38,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:30:38,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:30:38,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:30:38,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:30:38,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:30:38,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:30:38,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:30:38,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:30:38,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:30:38,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:30:38,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:30:38,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:30:38,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:30:38,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:30:38,366 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 07:30:38,393 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:30:38,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:30:38,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:30:38,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:30:38,395 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:30:38,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:30:38,395 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:30:38,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:30:38,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:30:38,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:30:38,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:30:38,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:30:38,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:30:38,396 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:30:38,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:30:38,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:30:38,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:30:38,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:30:38,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:30:38,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:30:38,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:30:38,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:30:38,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:30:38,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:30:38,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:30:38,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:30:38,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:30:38,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:30:38,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:30:38,400 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:30:38,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:30:38,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:30:38,902 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:30:38,904 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:30:38,904 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:30:38,905 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2020-09-25 07:30:38,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/532966b4f/14fa456ff56843aebe012cd379dfc7e5/FLAG6578a835d [2020-09-25 07:30:39,599 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:30:39,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2020-09-25 07:30:39,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/532966b4f/14fa456ff56843aebe012cd379dfc7e5/FLAG6578a835d [2020-09-25 07:30:39,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/532966b4f/14fa456ff56843aebe012cd379dfc7e5 [2020-09-25 07:30:39,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:30:39,900 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:30:39,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:30:39,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:30:39,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:30:39,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:30:39" (1/1) ... [2020-09-25 07:30:39,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71155234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:39, skipping insertion in model container [2020-09-25 07:30:39,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:30:39" (1/1) ... [2020-09-25 07:30:39,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:30:39,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:30:40,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:30:40,454 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:30:40,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:30:40,600 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:30:40,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:40 WrapperNode [2020-09-25 07:30:40,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:30:40,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:30:40,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:30:40,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:30:40,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:40" (1/1) ... [2020-09-25 07:30:40,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:40" (1/1) ... [2020-09-25 07:30:40,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:40" (1/1) ... [2020-09-25 07:30:40,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:40" (1/1) ... [2020-09-25 07:30:40,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:40" (1/1) ... [2020-09-25 07:30:40,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:40" (1/1) ... [2020-09-25 07:30:40,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:40" (1/1) ... [2020-09-25 07:30:40,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:30:40,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:30:40,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:30:40,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:30:40,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:40" (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 07:30:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:30:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:30:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:30:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:30:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:30:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:30:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:30:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:30:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:30:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:30:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:30:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:30:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:30:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:30:40,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:30:40,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:30:40,786 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:30:40,786 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:30:40,786 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:30:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:30:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 07:30:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:30:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:30:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:30:40,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:30:40,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:30:40,788 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:30:40,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:30:40,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:30:40,788 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:30:40,789 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:30:40,789 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:30:40,789 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:30:40,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:30:40,789 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:30:40,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:30:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:30:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:30:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:30:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:30:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:30:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:30:40,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:30:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:30:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:30:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:30:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:30:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:30:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:30:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:30:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:30:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:30:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:30:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:30:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:30:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:30:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:30:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:30:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:30:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:30:40,794 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:30:40,794 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:30:40,794 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:30:40,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:30:40,794 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:30:40,794 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:30:40,795 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:30:40,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:30:40,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:30:40,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:30:40,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:30:40,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:30:40,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:30:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:30:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:30:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:30:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:30:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:30:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:30:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:30:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:30:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:30:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:30:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:30:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:30:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:30:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:30:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:30:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:30:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:30:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:30:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:30:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:30:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 07:30:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:30:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:30:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:30:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:30:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:30:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:30:42,051 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:30:42,051 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:30:42,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:30:42 BoogieIcfgContainer [2020-09-25 07:30:42,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:30:42,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:30:42,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:30:42,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:30:42,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:30:39" (1/3) ... [2020-09-25 07:30:42,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386d2a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:30:42, skipping insertion in model container [2020-09-25 07:30:42,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:40" (2/3) ... [2020-09-25 07:30:42,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386d2a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:30:42, skipping insertion in model container [2020-09-25 07:30:42,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:30:42" (3/3) ... [2020-09-25 07:30:42,068 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product54.cil.c [2020-09-25 07:30:42,079 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:30:42,091 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:30:42,114 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:30:42,148 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:30:42,149 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:30:42,149 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:30:42,149 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:30:42,149 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:30:42,149 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:30:42,150 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:30:42,150 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:30:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-09-25 07:30:42,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 07:30:42,199 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:42,200 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] [2020-09-25 07:30:42,201 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:42,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:42,209 INFO L82 PathProgramCache]: Analyzing trace with hash -757984097, now seen corresponding path program 1 times [2020-09-25 07:30:42,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:42,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319608406] [2020-09-25 07:30:42,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:42,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:42,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:44,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:45,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:45,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:47,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:47,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:47,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:30:47,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:30:47,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 07:30:47,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:47,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:30:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:47,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:30:48,116 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:48,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:48,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:48,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:48,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:48,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:48,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 07:30:48,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:48,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:48,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:48,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:48,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:48,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:48,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:48,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:48,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:48,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:48,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:48,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:48,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:48,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:48,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:48,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:48,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:48,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:48,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:48,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:48,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:48,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:48,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:48,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:48,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:48,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:48,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:48,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:48,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:48,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:48,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:48,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:48,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:48,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:48,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:48,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:48,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:48,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:48,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:48,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:48,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:48,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:48,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:48,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:48,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:48,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:48,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:48,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:48,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:48,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:48,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:48,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:48,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:48,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:48,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:48,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:48,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:48,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:48,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:48,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 07:30:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:48,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:48,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:48,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:48,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:48,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:48,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:48,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:48,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:48,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:30:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:48,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:48,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:48,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:48,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:48,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:48,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:48,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:48,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:48,457 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 07:30:48,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319608406] [2020-09-25 07:30:48,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:48,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:30:48,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637216902] [2020-09-25 07:30:48,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:30:48,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:48,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:30:48,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:30:48,490 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 4 states. [2020-09-25 07:30:50,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:50,085 INFO L93 Difference]: Finished difference Result 554 states and 656 transitions. [2020-09-25 07:30:50,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:30:50,087 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 07:30:50,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:50,108 INFO L225 Difference]: With dead ends: 554 [2020-09-25 07:30:50,108 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 07:30:50,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:30:50,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 07:30:50,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 294. [2020-09-25 07:30:50,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-09-25 07:30:50,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 322 transitions. [2020-09-25 07:30:50,238 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 322 transitions. Word has length 148 [2020-09-25 07:30:50,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:50,239 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 322 transitions. [2020-09-25 07:30:50,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:30:50,240 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 322 transitions. [2020-09-25 07:30:50,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 07:30:50,244 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:50,244 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] [2020-09-25 07:30:50,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:30:50,245 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:50,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:50,245 INFO L82 PathProgramCache]: Analyzing trace with hash 764850235, now seen corresponding path program 1 times [2020-09-25 07:30:50,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:50,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922727798] [2020-09-25 07:30:50,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:50,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:50,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:51,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:52,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:53,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:54,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:55,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 07:30:55,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:30:55,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 07:30:55,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:55,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:55,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:55,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:30:55,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:30:55,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:55,651 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:55,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:55,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:55,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:55,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:55,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 07:30:55,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:55,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:55,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:55,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:55,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:55,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:55,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:55,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:55,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:30:55,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:55,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:55,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:55,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:55,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:55,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:55,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:55,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:55,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:55,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:55,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:55,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:55,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:55,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:55,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:55,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:55,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:55,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:55,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:55,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:55,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:55,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:55,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:55,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:55,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:55,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:55,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:30:55,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:55,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:55,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:55,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:55,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:55,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:55,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:55,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:55,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:55,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:55,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:55,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:55,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:55,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:55,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:55,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:55,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:30:55,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 07:30:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:55,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:55,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:55,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:55,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:55,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:55,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:55,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:55,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:55,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:55,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:30:55,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:30:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:55,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:55,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:55,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:55,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:55,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:55,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:55,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:55,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:55,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:55,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:55,885 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 07:30:55,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922727798] [2020-09-25 07:30:55,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:55,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:30:55,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979487655] [2020-09-25 07:30:55,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:30:55,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:55,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:30:55,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:30:55,891 INFO L87 Difference]: Start difference. First operand 294 states and 322 transitions. Second operand 5 states. [2020-09-25 07:30:56,509 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:30:57,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:57,794 INFO L93 Difference]: Finished difference Result 479 states and 547 transitions. [2020-09-25 07:30:57,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:30:57,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 07:30:57,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:57,804 INFO L225 Difference]: With dead ends: 479 [2020-09-25 07:30:57,805 INFO L226 Difference]: Without dead ends: 334 [2020-09-25 07:30:57,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:30:57,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-25 07:30:57,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 284. [2020-09-25 07:30:57,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-25 07:30:57,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 309 transitions. [2020-09-25 07:30:57,869 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 309 transitions. Word has length 149 [2020-09-25 07:30:57,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:57,869 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 309 transitions. [2020-09-25 07:30:57,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:30:57,870 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 309 transitions. [2020-09-25 07:30:57,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 07:30:57,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:57,872 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:30:57,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:30:57,873 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:57,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:57,873 INFO L82 PathProgramCache]: Analyzing trace with hash 938731103, now seen corresponding path program 1 times [2020-09-25 07:30:57,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:57,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717400073] [2020-09-25 07:30:57,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:57,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:58,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:58,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:59,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:02,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:02,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 07:31:02,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:31:02,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-25 07:31:02,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:02,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 07:31:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:31:02,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:03,286 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:31:03,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:03,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:03,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:31:03,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:03,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 07:31:03,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:03,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:03,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:03,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:31:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:03,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:03,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:03,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:03,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:03,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:03,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:03,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:03,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:03,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:03,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:03,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:31:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:03,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:03,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:03,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:03,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:03,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:03,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:03,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:03,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:03,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:03,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:03,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:31:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:03,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:03,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:03,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:03,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:03,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:03,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:03,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:03,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:03,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:03,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:31:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:03,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:03,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:03,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:03,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:03,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:03,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:03,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:03,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:03,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:03,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:03,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:31:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:03,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:03,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:31:03,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:03,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:03,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:03,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:03,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:03,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:03,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:03,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:03,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:31:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:03,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:03,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:31:03,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:03,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:03,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:03,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:03,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:03,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:03,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:31:03,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:03,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:31:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:03,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:03,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:03,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:03,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:31:03,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:03,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:03,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:03,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:31:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:03,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:03,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:03,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:03,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:03,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:03,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:03,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:03,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:03,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:03,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:03,524 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 07:31:03,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717400073] [2020-09-25 07:31:03,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:03,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:31:03,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414787831] [2020-09-25 07:31:03,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:31:03,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:03,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:31:03,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:31:03,529 INFO L87 Difference]: Start difference. First operand 284 states and 309 transitions. Second operand 6 states. [2020-09-25 07:31:04,082 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:31:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:05,332 INFO L93 Difference]: Finished difference Result 526 states and 612 transitions. [2020-09-25 07:31:05,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:31:05,332 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 07:31:05,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:05,337 INFO L225 Difference]: With dead ends: 526 [2020-09-25 07:31:05,337 INFO L226 Difference]: Without dead ends: 357 [2020-09-25 07:31:05,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:31:05,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-09-25 07:31:05,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 284. [2020-09-25 07:31:05,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-25 07:31:05,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 308 transitions. [2020-09-25 07:31:05,397 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 308 transitions. Word has length 162 [2020-09-25 07:31:05,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:05,399 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 308 transitions. [2020-09-25 07:31:05,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:31:05,399 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 308 transitions. [2020-09-25 07:31:05,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 07:31:05,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:05,406 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, 1, 1, 1] [2020-09-25 07:31:05,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:31:05,407 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:05,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:05,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1308377398, now seen corresponding path program 1 times [2020-09-25 07:31:05,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:05,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [415624732] [2020-09-25 07:31:05,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:05,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:05,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:06,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:06,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:09,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:09,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:10,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:10,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 07:31:10,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 07:31:10,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 07:31:10,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:10,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:31:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 07:31:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:31:10,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:10,826 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:31:10,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:10,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:10,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:10,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:31:10,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:10,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 07:31:10,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:10,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:10,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:10,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:10,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:31:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:10,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:10,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:10,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:10,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:10,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:10,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:10,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:10,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:10,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:10,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:10,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:10,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:31:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:10,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:10,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:10,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:10,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:10,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:10,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:10,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:10,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:10,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:10,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:10,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:10,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:31:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:10,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:11,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:11,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:11,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:31:11,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:11,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:11,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:11,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:11,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:11,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:11,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:31:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:11,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:11,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:11,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:11,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:11,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:11,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:11,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:11,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:11,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:11,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:31:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:11,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:11,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:31:11,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:11,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:11,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:11,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:11,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:11,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:11,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:11,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:11,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:31:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:11,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:11,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:31:11,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:11,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:11,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:11,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:11,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:11,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:11,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:31:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:11,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:11,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:31:11,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:31:11,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 07:31:11,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:11,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:11,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:31:11,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 07:31:11,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:31:11,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:11,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:11,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:11,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:31:11,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:31:11,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:31:11,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:11,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:31:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:31:11,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:31:11,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:11,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:11,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:11,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:31:11,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:11,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:31:11,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:11,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:31:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:31:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:31:11,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:11,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:11,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:11,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:11,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:11,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:31:11,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:11,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:11,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:11,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:11,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:11,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:11,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 07:31:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:11,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:11,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:11,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:11,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:31:11,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:11,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:11,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:11,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 07:31:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:11,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:11,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:11,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:11,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:11,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:11,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:11,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:11,329 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 07:31:11,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [415624732] [2020-09-25 07:31:11,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:11,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:31:11,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251912214] [2020-09-25 07:31:11,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:31:11,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:11,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:31:11,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:31:11,333 INFO L87 Difference]: Start difference. First operand 284 states and 308 transitions. Second operand 9 states. [2020-09-25 07:31:11,830 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:31:13,731 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:31:15,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:15,106 INFO L93 Difference]: Finished difference Result 720 states and 862 transitions. [2020-09-25 07:31:15,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 07:31:15,107 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 180 [2020-09-25 07:31:15,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:15,112 INFO L225 Difference]: With dead ends: 720 [2020-09-25 07:31:15,112 INFO L226 Difference]: Without dead ends: 551 [2020-09-25 07:31:15,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2020-09-25 07:31:15,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-09-25 07:31:15,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 410. [2020-09-25 07:31:15,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-25 07:31:15,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 443 transitions. [2020-09-25 07:31:15,184 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 443 transitions. Word has length 180 [2020-09-25 07:31:15,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:15,185 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 443 transitions. [2020-09-25 07:31:15,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:31:15,185 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 443 transitions. [2020-09-25 07:31:15,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 07:31:15,188 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:15,188 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, 1, 1, 1, 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 07:31:15,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:31:15,189 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:15,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:15,189 INFO L82 PathProgramCache]: Analyzing trace with hash 937711856, now seen corresponding path program 1 times [2020-09-25 07:31:15,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:15,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178894788] [2020-09-25 07:31:15,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:15,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:19,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 07:31:20,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:31:20,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 07:31:20,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:31:20,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 07:31:20,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 07:31:20,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:20,571 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:31:20,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:31:20,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 07:31:20,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:20,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:20,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:20,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:31:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:20,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:20,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:20,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:20,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:20,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:31:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:20,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:20,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:20,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:20,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:20,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:31:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:20,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:20,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:20,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:20,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:31:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:20,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:20,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:20,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:20,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:31:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:31:20,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:20,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:20,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:31:20,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:20,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:31:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:31:20,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:20,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:31:20,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:20,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:31:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 07:31:20,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 07:31:20,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 07:31:20,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:20,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:31:20,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:31:20,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:20,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:20,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:31:20,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:31:20,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:20,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:20,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:20,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:31:20,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:31:20,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:20,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:20,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:31:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:31:20,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:20,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:20,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:20,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:31:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:20,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:20,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:20,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:20,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 07:31:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:20,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:20,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:20,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:20,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:20,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-25 07:31:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:20,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:20,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:20,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:20,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:20,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:20,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:20,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:20,920 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 07:31:20,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178894788] [2020-09-25 07:31:20,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:20,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:31:20,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693722498] [2020-09-25 07:31:20,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:31:20,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:20,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:31:20,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:31:20,923 INFO L87 Difference]: Start difference. First operand 410 states and 443 transitions. Second operand 7 states. [2020-09-25 07:31:21,487 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:31:24,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:24,790 INFO L93 Difference]: Finished difference Result 1066 states and 1352 transitions. [2020-09-25 07:31:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 07:31:24,791 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-09-25 07:31:24,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:24,798 INFO L225 Difference]: With dead ends: 1066 [2020-09-25 07:31:24,798 INFO L226 Difference]: Without dead ends: 1063 [2020-09-25 07:31:24,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:31:24,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2020-09-25 07:31:24,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 713. [2020-09-25 07:31:24,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-09-25 07:31:24,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 790 transitions. [2020-09-25 07:31:24,913 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 790 transitions. Word has length 204 [2020-09-25 07:31:24,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:24,913 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 790 transitions. [2020-09-25 07:31:24,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:31:24,914 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 790 transitions. [2020-09-25 07:31:24,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-09-25 07:31:24,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:24,919 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:24,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:31:24,920 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:24,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:24,920 INFO L82 PathProgramCache]: Analyzing trace with hash -180342053, now seen corresponding path program 1 times [2020-09-25 07:31:24,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:24,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804510887] [2020-09-25 07:31:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:25,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking...