/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:48:03,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:48:03,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:48:03,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:48:03,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:48:03,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:48:03,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:48:03,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:48:03,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:48:03,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:48:03,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:48:03,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:48:03,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:48:03,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:48:03,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:48:03,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:48:03,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:48:03,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:48:03,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:48:03,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:48:03,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:48:03,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:48:03,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:48:03,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:48:03,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:48:03,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:48:03,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:48:03,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:48:03,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:48:03,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:48:03,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:48:03,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:48:03,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:48:03,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:48:03,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:48:03,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:48:03,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:48:03,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:48:03,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:48:03,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:48:03,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:48:03,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:48:03,406 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:48:03,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:48:03,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:48:03,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:48:03,409 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:48:03,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:48:03,409 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:48:03,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:48:03,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:48:03,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:48:03,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:48:03,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:48:03,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:48:03,412 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:48:03,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:48:03,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:48:03,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:48:03,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:48:03,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:48:03,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:48:03,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:48:03,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:48:03,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:48:03,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:48:03,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:48:03,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:48:03,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:48:03,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:48:03,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:48:03,416 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:48:03,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:48:03,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:48:03,962 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:48:03,964 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:48:03,965 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:48:03,966 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product26.cil.c [2020-09-25 08:48:04,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74a43604c/a65bf0a1cdc543a7b37501c63900d60a/FLAG577c0ab62 [2020-09-25 08:48:04,710 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:48:04,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product26.cil.c [2020-09-25 08:48:04,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74a43604c/a65bf0a1cdc543a7b37501c63900d60a/FLAG577c0ab62 [2020-09-25 08:48:04,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74a43604c/a65bf0a1cdc543a7b37501c63900d60a [2020-09-25 08:48:04,947 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:48:04,953 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:48:04,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:48:04,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:48:04,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:48:04,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:48:04" (1/1) ... [2020-09-25 08:48:04,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:48:04, skipping insertion in model container [2020-09-25 08:48:04,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:48:04" (1/1) ... [2020-09-25 08:48:04,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:48:05,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:48:05,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:48:05,522 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:48:05,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:48:05,747 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:48:05,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:48:05 WrapperNode [2020-09-25 08:48:05,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:48:05,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:48:05,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:48:05,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:48:05,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:48:05" (1/1) ... [2020-09-25 08:48:05,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:48:05" (1/1) ... [2020-09-25 08:48:05,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:48:05" (1/1) ... [2020-09-25 08:48:05,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:48:05" (1/1) ... [2020-09-25 08:48:05,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:48:05" (1/1) ... [2020-09-25 08:48:05,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:48:05" (1/1) ... [2020-09-25 08:48:05,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:48:05" (1/1) ... [2020-09-25 08:48:05,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:48:05,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:48:05,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:48:05,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:48:05,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:48:05" (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 08:48:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:48:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:48:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:48:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:48:05,940 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:48:05,940 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:48:05,940 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:48:05,940 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:48:05,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:48:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 08:48:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:48:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:48:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:48:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:48:05,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:48:05,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:48:05,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:48:05,942 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:48:05,943 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:48:05,943 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:48:05,943 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 08:48:05,943 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:48:05,943 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:48:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:48:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:48:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:48:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 08:48:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:48:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:48:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:48:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:48:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:48:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:48:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:48:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:48:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:48:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:48:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:48:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 08:48:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 08:48:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 08:48:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:48:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:48:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:48:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:48:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:48:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:48:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:48:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:48:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:48:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 08:48:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:48:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:48:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:48:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:48:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:48:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:48:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:48:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:48:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:48:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:48:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:48:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:48:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:48:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:48:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:48:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:48:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:48:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:48:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:48:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:48:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:48:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:48:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:48:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:48:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 08:48:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 08:48:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:48:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:48:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 08:48:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 08:48:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:48:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:48:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:48:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:48:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:48:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:48:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:48:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:48:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:48:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 08:48:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:48:05,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:48:05,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:48:05,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:48:05,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:48:07,318 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:48:07,319 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:48:07,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:48:07 BoogieIcfgContainer [2020-09-25 08:48:07,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:48:07,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:48:07,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:48:07,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:48:07,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:48:04" (1/3) ... [2020-09-25 08:48:07,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301b5371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:48:07, skipping insertion in model container [2020-09-25 08:48:07,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:48:05" (2/3) ... [2020-09-25 08:48:07,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301b5371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:48:07, skipping insertion in model container [2020-09-25 08:48:07,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:48:07" (3/3) ... [2020-09-25 08:48:07,339 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product26.cil.c [2020-09-25 08:48:07,351 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:48:07,363 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:48:07,385 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:48:07,414 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:48:07,414 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:48:07,414 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:48:07,415 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:48:07,415 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:48:07,415 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:48:07,415 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:48:07,415 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:48:07,441 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-09-25 08:48:07,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 08:48:07,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:48:07,461 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 08:48:07,461 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:48:07,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:48:07,470 INFO L82 PathProgramCache]: Analyzing trace with hash -535325414, now seen corresponding path program 1 times [2020-09-25 08:48:07,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:48:07,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980221095] [2020-09-25 08:48:07,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:48:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:08,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:08,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:09,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:09,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:12,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:12,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:12,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 08:48:12,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:48:12,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-09-25 08:48:12,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:12,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:12,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:48:12,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:12,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 08:48:13,538 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:48:13,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:48:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:13,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:13,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:13,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:48:13,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:13,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 08:48:13,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:13,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:13,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:13,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:13,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:13,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:13,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:48:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:13,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:13,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:13,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:13,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:13,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:48:13,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:13,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:13,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:13,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:13,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:13,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:13,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:48:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:13,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:13,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:13,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:13,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:13,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 08:48:13,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:13,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:13,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:13,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:13,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:13,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:13,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:48:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:13,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:13,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:13,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:13,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:13,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:48:13,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:13,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:13,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:13,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:13,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:13,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:13,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:48:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:13,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:13,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:13,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:13,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:13,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:13,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:13,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:13,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:13,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:48:13,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:48:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:13,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:13,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:13,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:48:13,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:13,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:48:13,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:13,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:13,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:13,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:13,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:13,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:13,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:48:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:13,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:13,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:13,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:48:13,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:13,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:48:13,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:13,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:13,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:13,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 08:48:13,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:13,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:13,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:48:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:13,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:13,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:13,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:13,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:13,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:48:13,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:13,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:13,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 08:48:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:13,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:13,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:13,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:13,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:13,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:13,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:13,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:13,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:13,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:48:13,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:13,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:13,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:48:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:13,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:13,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:13,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:13,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:13,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:13,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:13,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:13,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:13,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:48:13,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:13,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:13,936 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 08:48:13,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980221095] [2020-09-25 08:48:13,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:48:13,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:48:13,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228204441] [2020-09-25 08:48:13,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:48:13,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:48:13,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:48:13,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:48:13,972 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 4 states. [2020-09-25 08:48:15,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:48:15,306 INFO L93 Difference]: Finished difference Result 441 states and 518 transitions. [2020-09-25 08:48:15,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:48:15,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 08:48:15,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:48:15,326 INFO L225 Difference]: With dead ends: 441 [2020-09-25 08:48:15,326 INFO L226 Difference]: Without dead ends: 285 [2020-09-25 08:48:15,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:48:15,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-25 08:48:15,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 241. [2020-09-25 08:48:15,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-09-25 08:48:15,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 260 transitions. [2020-09-25 08:48:15,439 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 260 transitions. Word has length 160 [2020-09-25 08:48:15,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:48:15,440 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 260 transitions. [2020-09-25 08:48:15,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:48:15,441 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 260 transitions. [2020-09-25 08:48:15,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 08:48:15,449 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:48:15,449 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 08:48:15,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:48:15,450 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:48:15,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:48:15,451 INFO L82 PathProgramCache]: Analyzing trace with hash -926156542, now seen corresponding path program 1 times [2020-09-25 08:48:15,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:48:15,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435375473] [2020-09-25 08:48:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:48:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:15,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:15,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:17,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:17,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:18,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:20,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:20,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 08:48:20,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:48:20,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 08:48:20,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:20,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:48:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:48:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:48:20,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:20,838 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:48:20,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:48:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:20,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:20,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:20,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:48:20,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:20,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 08:48:20,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:20,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:20,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:20,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:20,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:20,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:20,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:48:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:20,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:21,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:21,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:21,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:21,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:21,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:21,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:21,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:21,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:21,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:21,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:21,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:48:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:21,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:21,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:21,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:21,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:21,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:48:21,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:21,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:21,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:21,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:21,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:21,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:21,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:48:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:21,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:21,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:21,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:21,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:21,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:48:21,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:21,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:21,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:21,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:21,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:21,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:48:21,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:48:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:21,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:21,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:21,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:21,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:21,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:48:21,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:21,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:21,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:21,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:21,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:21,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:21,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:48:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:21,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:21,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:21,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:48:21,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:21,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:21,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:21,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:21,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:21,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:21,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:21,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:21,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:48:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:21,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:21,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:21,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:48:21,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:21,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:48:21,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:21,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 08:48:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:21,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:21,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:48:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:21,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:21,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:21,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:21,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:21,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:48:21,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:21,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:21,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:21,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:21,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:21,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:21,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 08:48:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:21,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:21,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:21,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:21,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:21,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:48:21,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:21,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:21,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:21,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:48:21,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:21,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:21,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 08:48:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:21,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:21,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:21,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:21,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:21,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:21,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:21,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:21,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:48:21,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:21,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 08:48:21,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435375473] [2020-09-25 08:48:21,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:48:21,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:48:21,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469627155] [2020-09-25 08:48:21,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:48:21,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:48:21,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:48:21,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:48:21,106 INFO L87 Difference]: Start difference. First operand 241 states and 260 transitions. Second operand 5 states. [2020-09-25 08:48:21,906 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:48:22,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:48:22,772 INFO L93 Difference]: Finished difference Result 366 states and 410 transitions. [2020-09-25 08:48:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:48:22,772 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 08:48:22,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:48:22,781 INFO L225 Difference]: With dead ends: 366 [2020-09-25 08:48:22,781 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 08:48:22,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:48:22,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 08:48:22,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 231. [2020-09-25 08:48:22,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-25 08:48:22,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 247 transitions. [2020-09-25 08:48:22,861 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 247 transitions. Word has length 161 [2020-09-25 08:48:22,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:48:22,862 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 247 transitions. [2020-09-25 08:48:22,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:48:22,862 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 247 transitions. [2020-09-25 08:48:22,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 08:48:22,871 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:48:22,871 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 08:48:22,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:48:22,872 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:48:22,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:48:22,872 INFO L82 PathProgramCache]: Analyzing trace with hash -31373584, now seen corresponding path program 1 times [2020-09-25 08:48:22,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:48:22,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069518792] [2020-09-25 08:48:22,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:48:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:22,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:23,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:23,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:25,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:27,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:27,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 08:48:27,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:48:27,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:48:27,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:27,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:27,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:48:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 08:48:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:48:27,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:48:28,221 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:48:28,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:48:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:28,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:28,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:28,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:48:28,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:28,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 08:48:28,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:28,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:28,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:28,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:48:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:28,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:28,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:28,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:28,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:28,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:48:28,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:28,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:28,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:28,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:28,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:28,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:28,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:48:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:28,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:28,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:28,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:28,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:28,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:48:28,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:28,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:28,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:48:28,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:48:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:28,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:28,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:28,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:28,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:28,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:48:28,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:28,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:28,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:28,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:28,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:28,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:28,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:48:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:28,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:28,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:28,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:28,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:28,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:48:28,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:28,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:28,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:28,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:28,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:28,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:28,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:48:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:28,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:28,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:28,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:48:28,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:28,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:28,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:28,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:28,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:28,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:48:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:28,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:28,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:28,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:48:28,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:28,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:48:28,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:28,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:28,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:48:28,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:48:28,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:28,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:48:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:28,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:28,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:28,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:48:28,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:28,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:48:28,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:28,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:48:28,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:28,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:48:28,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:28,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:48:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:28,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:28,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:28,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:28,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:28,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:28,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:28,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:28,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:28,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:28,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:28,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:28,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 08:48:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:28,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:28,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:28,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:28,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:28,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:28,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:28,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:48:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:28,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:28,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 08:48:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:28,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:28,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:28,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:28,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:28,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:28,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:28,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:48:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:28,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:28,535 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 08:48:28,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069518792] [2020-09-25 08:48:28,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:48:28,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:48:28,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916074515] [2020-09-25 08:48:28,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:48:28,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:48:28,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:48:28,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:48:28,548 INFO L87 Difference]: Start difference. First operand 231 states and 247 transitions. Second operand 6 states. [2020-09-25 08:48:29,254 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:48:30,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:48:30,010 INFO L93 Difference]: Finished difference Result 413 states and 475 transitions. [2020-09-25 08:48:30,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:48:30,011 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 08:48:30,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:48:30,015 INFO L225 Difference]: With dead ends: 413 [2020-09-25 08:48:30,015 INFO L226 Difference]: Without dead ends: 297 [2020-09-25 08:48:30,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:48:30,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-09-25 08:48:30,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 231. [2020-09-25 08:48:30,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-25 08:48:30,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 246 transitions. [2020-09-25 08:48:30,058 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 246 transitions. Word has length 174 [2020-09-25 08:48:30,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:48:30,058 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 246 transitions. [2020-09-25 08:48:30,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:48:30,059 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 246 transitions. [2020-09-25 08:48:30,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 08:48:30,061 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:48:30,061 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 08:48:30,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:48:30,062 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:48:30,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:48:30,062 INFO L82 PathProgramCache]: Analyzing trace with hash 2100279675, now seen corresponding path program 1 times [2020-09-25 08:48:30,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:48:30,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605002251] [2020-09-25 08:48:30,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:48:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:30,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:30,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:30,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:34,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-25 08:48:35,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:48:35,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 08:48:35,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:48:35,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 08:48:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 08:48:35,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,529 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:48:35,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:48:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:48:35,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 08:48:35,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:35,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:35,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:35,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:48:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:35,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:35,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:35,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:35,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:35,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:48:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:35,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:35,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:35,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:35,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:35,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:48:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:35,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:48:35,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:35,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:35,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:35,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:48:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:35,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:35,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:35,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:35,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:35,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:48:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:48:35,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:48:35,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:35,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:48:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:48:35,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:48:35,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:48:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:48:35,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:48:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:48:35,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:48:35,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:48:35,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:35,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:48:35,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:48:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:35,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:48:35,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:48:35,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:35,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:48:35,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 08:48:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:48:35,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 08:48:35,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:48:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:48:35,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 08:48:35,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:48:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:48:35,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:48:35,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:48:35,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:35,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:48:35,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 08:48:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:35,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:48:35,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:48:35,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:35,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:48:35,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:35,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 08:48:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:48:35,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:48:35,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:48:35,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:48:35,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:48:35,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:48:35,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:48:35,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:48:35,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:48:35,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:48:35,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:48:35,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:48:36,043 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 08:48:36,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605002251] [2020-09-25 08:48:36,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:48:36,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 08:48:36,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407489921] [2020-09-25 08:48:36,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 08:48:36,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:48:36,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 08:48:36,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:48:36,048 INFO L87 Difference]: Start difference. First operand 231 states and 246 transitions. Second operand 13 states. [2020-09-25 08:48:37,470 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:48:37,769 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:48:38,080 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:48:38,494 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:48:38,816 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:48:39,665 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:48:40,016 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:48:40,441 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:48:40,831 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 08:48:41,180 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:48:41,524 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 08:48:41,983 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:48:43,112 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:48:43,445 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:48:43,790 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 08:48:44,134 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 08:48:44,510 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:48:44,968 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 08:48:45,404 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 08:48:46,090 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:48:46,491 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:48:46,884 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:48:48,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:48:48,152 INFO L93 Difference]: Finished difference Result 741 states and 934 transitions. [2020-09-25 08:48:48,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-09-25 08:48:48,169 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 182 [2020-09-25 08:48:48,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:48:48,170 INFO L225 Difference]: With dead ends: 741 [2020-09-25 08:48:48,171 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 08:48:48,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 768 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=695, Invalid=2275, Unknown=0, NotChecked=0, Total=2970 [2020-09-25 08:48:48,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 08:48:48,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 08:48:48,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 08:48:48,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 08:48:48,177 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 182 [2020-09-25 08:48:48,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:48:48,178 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 08:48:48,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 08:48:48,178 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 08:48:48,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 08:48:48,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:48:48,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 08:48:48,548 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-09-25 08:48:48,838 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-09-25 08:48:49,152 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-09-25 08:48:49,416 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-09-25 08:48:49,585 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:48:49,744 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:48:49,921 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:48:50,084 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:48:50,249 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:48:50,398 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:48:50,556 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:48:50,715 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:48:50,865 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:48:51,025 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:48:51,183 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:48:51,350 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:48:51,504 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:48:51,658 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:48:51,820 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:48:51,973 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:48:52,231 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 22 [2020-09-25 08:48:52,385 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:48:52,542 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192