/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_spec4_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:08:02,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:08:02,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:08:02,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:08:02,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:08:02,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:08:02,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:08:02,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:08:02,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:08:02,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:08:02,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:08:02,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:08:02,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:08:02,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:08:02,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:08:02,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:08:02,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:08:02,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:08:02,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:08:02,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:08:02,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:08:02,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:08:02,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:08:02,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:08:02,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:08:02,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:08:02,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:08:02,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:08:02,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:08:02,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:08:02,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:08:02,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:08:02,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:08:02,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:08:02,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:08:02,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:08:02,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:08:02,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:08:02,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:08:02,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:08:02,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:08:02,806 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 12:08:02,850 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:08:02,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:08:02,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:08:02,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:08:02,853 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:08:02,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:08:02,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:08:02,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:08:02,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:08:02,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:08:02,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:08:02,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:08:02,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:08:02,856 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:08:02,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:08:02,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:08:02,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:08:02,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:08:02,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:08:02,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:08:02,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:08:02,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:08:02,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:08:02,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:08:02,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:08:02,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:08:02,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:08:02,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:08:02,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:08:02,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:08:03,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:08:03,328 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:08:03,332 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:08:03,334 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:08:03,335 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:08:03,336 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-09-25 12:08:03,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f56a062fa/ee7ac78a43544d748c20e7b1e22b0602/FLAGdc17dee62 [2020-09-25 12:08:04,051 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:08:04,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-09-25 12:08:04,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f56a062fa/ee7ac78a43544d748c20e7b1e22b0602/FLAGdc17dee62 [2020-09-25 12:08:04,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f56a062fa/ee7ac78a43544d748c20e7b1e22b0602 [2020-09-25 12:08:04,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:08:04,353 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:08:04,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:08:04,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:08:04,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:08:04,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:08:04" (1/1) ... [2020-09-25 12:08:04,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:04, skipping insertion in model container [2020-09-25 12:08:04,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:08:04" (1/1) ... [2020-09-25 12:08:04,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:08:04,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:08:04,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:08:04,992 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:08:05,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:08:05,150 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:08:05,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:05 WrapperNode [2020-09-25 12:08:05,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:08:05,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:08:05,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:08:05,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:08:05,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:05" (1/1) ... [2020-09-25 12:08:05,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:05" (1/1) ... [2020-09-25 12:08:05,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:05" (1/1) ... [2020-09-25 12:08:05,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:05" (1/1) ... [2020-09-25 12:08:05,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:05" (1/1) ... [2020-09-25 12:08:05,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:05" (1/1) ... [2020-09-25 12:08:05,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:05" (1/1) ... [2020-09-25 12:08:05,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:08:05,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:08:05,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:08:05,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:08:05,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:05" (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 12:08:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:08:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:08:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:08:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:08:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:08:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:08:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:08:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:08:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:08:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:08:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:08:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:08:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:08:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 12:08:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:08:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:08:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:08:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:08:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:08:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 12:08:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 12:08:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:08:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:08:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:08:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:08:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:08:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:08:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:08:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:08:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:08:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:08:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:08:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:08:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 12:08:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 12:08:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:08:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:08:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:08:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:08:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:08:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:08:05,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:08:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:08:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:08:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:08:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:08:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:08:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:08:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:08:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:08:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:08:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:08:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:08:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:08:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:08:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:08:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:08:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:08:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:08:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:08:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:08:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:08:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 12:08:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 12:08:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:08:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:08:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:08:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:08:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:08:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 12:08:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:08:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 12:08:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 12:08:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:08:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:08:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:08:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:08:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:08:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:08:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:08:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:08:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:08:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:08:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:08:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:08:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:08:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:08:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:08:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:08:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:08:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:08:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:08:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:08:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:08:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:08:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:08:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:08:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:08:06,647 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:08:06,647 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:08:06,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:08:06 BoogieIcfgContainer [2020-09-25 12:08:06,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:08:06,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:08:06,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:08:06,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:08:06,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:08:04" (1/3) ... [2020-09-25 12:08:06,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f1244d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:08:06, skipping insertion in model container [2020-09-25 12:08:06,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:05" (2/3) ... [2020-09-25 12:08:06,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f1244d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:08:06, skipping insertion in model container [2020-09-25 12:08:06,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:08:06" (3/3) ... [2020-09-25 12:08:06,667 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2020-09-25 12:08:06,680 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:08:06,692 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:08:06,717 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:08:06,755 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:08:06,755 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:08:06,756 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:08:06,756 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:08:06,756 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:08:06,756 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:08:06,756 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:08:06,757 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:08:06,790 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states. [2020-09-25 12:08:06,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 12:08:06,812 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:08:06,813 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] [2020-09-25 12:08:06,814 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:08:06,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:08:06,822 INFO L82 PathProgramCache]: Analyzing trace with hash 344061342, now seen corresponding path program 1 times [2020-09-25 12:08:06,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:08:06,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16575095] [2020-09-25 12:08:06,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:08:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:07,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:07,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:08,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:09,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:12,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:12,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 12:08:12,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:08:12,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 12:08:12,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:12,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:12,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:08:12,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 12:08:12,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 12:08:12,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 12:08:12,693 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:08:12,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:08:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:12,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:13,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:13,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:08:13,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:13,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 12:08:13,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:13,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:13,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:13,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:13,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 12:08:13,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:13,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:08:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:13,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:13,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:13,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:13,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:13,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:13,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:13,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:13,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:13,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:13,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:13,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:13,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:08:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:13,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:13,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:13,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:13,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:13,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:13,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:13,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:13,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:13,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:13,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:13,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:13,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:08:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:13,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:13,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:13,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:13,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:13,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:08:13,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:13,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:13,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:13,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:13,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:08:13,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:13,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:08:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:13,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:13,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:13,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:13,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:13,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:13,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:13,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:13,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:13,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:13,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 12:08:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:13,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:13,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:13,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:13,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:13,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:13,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:13,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:13,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:13,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:08:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:13,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:13,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:13,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:13,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:13,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:13,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:13,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:13,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:13,282 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 12:08:13,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16575095] [2020-09-25 12:08:13,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:08:13,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:08:13,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748620653] [2020-09-25 12:08:13,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:08:13,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:08:13,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:08:13,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:08:13,320 INFO L87 Difference]: Start difference. First operand 340 states. Second operand 4 states. [2020-09-25 12:08:13,929 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:08:16,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:08:16,606 INFO L93 Difference]: Finished difference Result 762 states and 911 transitions. [2020-09-25 12:08:16,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:08:16,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 12:08:16,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:08:16,632 INFO L225 Difference]: With dead ends: 762 [2020-09-25 12:08:16,633 INFO L226 Difference]: Without dead ends: 533 [2020-09-25 12:08:16,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:08:16,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-09-25 12:08:16,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 462. [2020-09-25 12:08:16,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-09-25 12:08:16,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 513 transitions. [2020-09-25 12:08:16,845 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 513 transitions. Word has length 142 [2020-09-25 12:08:16,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:08:16,846 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 513 transitions. [2020-09-25 12:08:16,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:08:16,847 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 513 transitions. [2020-09-25 12:08:16,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 12:08:16,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:08:16,862 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] [2020-09-25 12:08:16,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:08:16,864 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:08:16,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:08:16,864 INFO L82 PathProgramCache]: Analyzing trace with hash -302472093, now seen corresponding path program 1 times [2020-09-25 12:08:16,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:08:16,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441091668] [2020-09-25 12:08:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:08:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:16,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:17,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:17,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:18,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:19,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:20,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:21,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:21,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:21,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 12:08:21,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:08:21,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 12:08:21,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:21,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:08:21,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 12:08:21,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-25 12:08:21,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:22,298 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:08:22,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:08:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:22,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:22,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:22,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:08:22,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:22,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 12:08:22,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:22,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:22,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:22,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:08:22,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:22,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:08:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:22,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:22,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:22,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:22,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:22,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:22,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:22,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:22,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:22,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:08:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:22,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:22,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:22,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:22,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:22,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:22,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:22,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:22,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:22,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:22,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:22,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:22,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:08:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:22,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:22,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:22,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:22,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:22,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:08:22,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:22,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:22,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:22,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:22,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:08:22,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:22,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:08:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:22,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:22,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:22,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:22,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:22,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:22,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:22,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:22,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:22,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 12:08:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:22,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:22,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:22,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:22,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:08:22,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:08:22,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:08:22,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:22,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:08:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:22,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:22,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:22,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:08:22,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:22,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:22,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:22,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:22,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:22,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:22,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:22,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:22,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:22,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:22,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:22,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:22,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:22,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:08:22,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:22,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:22,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:22,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:22,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:22,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:22,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 12:08:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:22,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:22,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:22,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:22,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:22,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:08:22,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:22,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:22,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:08:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:08:22,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:22,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 12:08:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:22,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:22,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:22,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:22,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:22,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:22,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:22,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:22,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:22,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:22,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:22,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:22,878 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 12:08:22,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441091668] [2020-09-25 12:08:22,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:08:22,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:08:22,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79442027] [2020-09-25 12:08:22,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:08:22,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:08:22,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:08:22,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:08:22,882 INFO L87 Difference]: Start difference. First operand 462 states and 513 transitions. Second operand 10 states. [2020-09-25 12:08:23,398 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:08:25,151 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:08:25,484 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:08:25,860 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:08:26,224 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:08:26,564 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:08:26,867 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:08:27,181 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:08:27,745 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:08:30,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:08:30,325 INFO L93 Difference]: Finished difference Result 1366 states and 1765 transitions. [2020-09-25 12:08:30,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 12:08:30,326 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-09-25 12:08:30,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:08:30,339 INFO L225 Difference]: With dead ends: 1366 [2020-09-25 12:08:30,340 INFO L226 Difference]: Without dead ends: 1014 [2020-09-25 12:08:30,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 12:08:30,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2020-09-25 12:08:30,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 811. [2020-09-25 12:08:30,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-09-25 12:08:30,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 949 transitions. [2020-09-25 12:08:30,541 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 949 transitions. Word has length 165 [2020-09-25 12:08:30,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:08:30,543 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 949 transitions. [2020-09-25 12:08:30,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:08:30,543 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 949 transitions. [2020-09-25 12:08:30,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 12:08:30,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:08:30,547 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] [2020-09-25 12:08:30,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:08:30,548 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:08:30,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:08:30,548 INFO L82 PathProgramCache]: Analyzing trace with hash -435026476, now seen corresponding path program 1 times [2020-09-25 12:08:30,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:08:30,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293887836] [2020-09-25 12:08:30,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:08:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:30,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:30,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:30,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:31,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:32,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:35,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:35,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 12:08:35,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:08:35,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 12:08:35,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:35,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:35,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:08:35,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 12:08:35,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 12:08:35,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:08:35,921 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:08:35,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:08:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:35,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:36,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:36,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:08:36,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:36,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 12:08:36,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:36,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:36,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:08:36,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:36,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:08:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:36,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:36,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:36,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:36,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:36,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:36,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:36,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:36,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:36,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:08:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:36,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:36,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:36,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:36,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:36,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:36,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:36,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:36,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:36,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:08:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:36,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:36,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:36,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:36,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:36,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:08:36,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:36,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:08:36,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:08:36,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:08:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:36,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:36,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:36,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:36,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:36,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:36,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:36,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:36,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:36,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:36,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:36,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:36,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 12:08:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:36,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:36,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:36,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:08:36,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:36,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:36,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:36,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:36,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:36,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:08:36,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:36,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:08:36,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 12:08:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:36,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:36,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:36,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:36,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:08:36,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:08:36,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:08:36,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:36,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:36,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:08:36,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 12:08:36,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:08:36,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:36,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:36,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:36,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:36,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:08:36,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:36,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:08:36,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:36,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:36,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:08:36,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:08:36,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:08:36,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:08:36,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:36,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:36,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:36,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:36,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:36,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:36,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:36,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:36,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:36,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:36,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:08:36,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:36,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 12:08:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:36,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:36,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:36,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:36,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:36,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:36,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:36,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:36,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:36,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:08:36,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 12:08:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:36,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:36,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:36,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:36,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:36,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:36,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:36,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:36,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:36,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:36,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:36,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:36,394 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 12:08:36,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293887836] [2020-09-25 12:08:36,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:08:36,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:08:36,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626971640] [2020-09-25 12:08:36,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:08:36,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:08:36,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:08:36,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:08:36,398 INFO L87 Difference]: Start difference. First operand 811 states and 949 transitions. Second operand 8 states. [2020-09-25 12:08:36,953 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:08:38,667 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:08:40,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:08:40,732 INFO L93 Difference]: Finished difference Result 2217 states and 3048 transitions. [2020-09-25 12:08:40,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 12:08:40,733 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-09-25 12:08:40,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:08:40,745 INFO L225 Difference]: With dead ends: 2217 [2020-09-25 12:08:40,745 INFO L226 Difference]: Without dead ends: 1516 [2020-09-25 12:08:40,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-09-25 12:08:40,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2020-09-25 12:08:40,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1137. [2020-09-25 12:08:40,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1137 states. [2020-09-25 12:08:40,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1371 transitions. [2020-09-25 12:08:40,904 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1371 transitions. Word has length 161 [2020-09-25 12:08:40,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:08:40,904 INFO L479 AbstractCegarLoop]: Abstraction has 1137 states and 1371 transitions. [2020-09-25 12:08:40,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:08:40,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1371 transitions. [2020-09-25 12:08:40,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-25 12:08:40,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:08:40,910 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:40,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:08:40,911 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:08:40,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:08:40,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1073017401, now seen corresponding path program 1 times [2020-09-25 12:08:40,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:08:40,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2142294037] [2020-09-25 12:08:40,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:08:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:41,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:41,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:41,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:41,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:42,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:45,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:45,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-09-25 12:08:45,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:08:45,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4971 [2020-09-25 12:08:45,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:45,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:45,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:45,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-25 12:08:45,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 12:08:45,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:08:46,212 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:08:46,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:08:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:46,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:46,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:46,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:08:46,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:46,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 12:08:46,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:46,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:46,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:46,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:46,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:46,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:46,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:08:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:46,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:46,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:46,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:46,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:46,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:46,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:46,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:46,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:46,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:46,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:46,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:46,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:08:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:46,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:46,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:46,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:46,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:46,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:46,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:46,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:46,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:46,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:46,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:46,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:46,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:08:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:46,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:46,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:46,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:46,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:46,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:46,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:46,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:46,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:46,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:46,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:46,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:46,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:08:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:46,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:46,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:46,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:08:46,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:46,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:46,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:46,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:46,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:46,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 12:08:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:46,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:46,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:46,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:08:46,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:46,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:46,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:46,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:46,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:46,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:46,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:08:46,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:46,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 12:08:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:46,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:46,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:46,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:46,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 12:08:46,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:08:46,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 12:08:46,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:46,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:46,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:08:46,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:46,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-25 12:08:46,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:46,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:46,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:46,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:46,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:46,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 12:08:46,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:08:46,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 12:08:46,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:46,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:46,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:08:46,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 12:08:46,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:08:46,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:46,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:46,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:47,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:47,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 12:08:47,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:47,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 12:08:47,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:47,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:47,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:08:47,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 12:08:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:08:47,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:47,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:47,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:47,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:47,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:08:47,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:47,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 12:08:47,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:47,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:47,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:08:47,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:47,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 12:08:47,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:47,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:08:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:47,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:47,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:47,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:08:47,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:47,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:08:47,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:47,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:47,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:47,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:47,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:47,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:47,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 12:08:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:47,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:47,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:47,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 12:08:47,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:47,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 12:08:47,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:47,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:47,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:47,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 12:08:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:47,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:47,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:08:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:47,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:47,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:47,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:08:47,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:47,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:08:47,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:47,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:47,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:47,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:47,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:47,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:47,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:08:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:47,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:47,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:47,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:47,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:47,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:08:47,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:47,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:47,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:47,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:47,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:47,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:47,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 12:08:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:47,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:47,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:47,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:08:47,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:47,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:08:47,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:47,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:47,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:47,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:47,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:47,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:08:47,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 12:08:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:47,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:47,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:47,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:08:47,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:47,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:08:47,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:47,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:47,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:47,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:47,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:47,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:47,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:08:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:47,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:47,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:47,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:47,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:47,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:47,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:47,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:47,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:47,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:08:47,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:47,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:47,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-25 12:08:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:47,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:47,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:47,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:08:47,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:47,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:08:47,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:47,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:47,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:47,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:08:47,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:47,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:47,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-25 12:08:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:47,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:47,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:47,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:47,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:47,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:47,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:47,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:47,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:47,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:47,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:47,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:47,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-09-25 12:08:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:08:47,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:08:47,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:08:47,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:08:47,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:08:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:08:47,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:08:47,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:08:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:08:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:08:47,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:08:47,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:08:47,577 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:08:47,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2142294037] [2020-09-25 12:08:47,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:08:47,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 12:08:47,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802621559] [2020-09-25 12:08:47,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 12:08:47,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:08:47,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 12:08:47,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:08:47,583 INFO L87 Difference]: Start difference. First operand 1137 states and 1371 transitions. Second operand 13 states. [2020-09-25 12:08:48,370 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:08:49,384 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:08:49,708 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:08:50,034 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:08:50,368 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:08:50,720 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191