/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_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:50:17,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:50:17,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:50:17,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:50:17,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:50:17,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:50:17,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:50:17,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:50:17,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:50:17,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:50:17,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:50:17,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:50:17,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:50:17,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:50:17,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:50:17,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:50:17,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:50:17,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:50:17,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:50:17,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:50:17,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:50:17,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:50:17,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:50:17,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:50:17,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:50:17,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:50:17,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:50:17,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:50:17,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:50:17,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:50:17,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:50:17,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:50:17,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:50:17,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:50:17,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:50:17,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:50:17,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:50:17,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:50:17,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:50:17,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:50:17,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:50:17,976 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 08:50:18,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:50:18,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:50:18,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:50:18,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:50:18,023 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:50:18,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:50:18,024 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:50:18,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:50:18,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:50:18,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:50:18,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:50:18,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:50:18,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:50:18,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:50:18,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:50:18,026 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:50:18,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:50:18,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:50:18,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:50:18,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:50:18,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:50:18,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:50:18,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:50:18,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:50:18,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:50:18,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:50:18,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:50:18,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:50:18,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:50:18,029 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 08:50:18,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:50:18,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:50:18,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:50:18,533 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:50:18,533 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:50:18,534 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2020-09-25 08:50:18,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ecfeb8343/4d9e78210efa428899ccc8240993f45d/FLAG490546259 [2020-09-25 08:50:19,270 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:50:19,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2020-09-25 08:50:19,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ecfeb8343/4d9e78210efa428899ccc8240993f45d/FLAG490546259 [2020-09-25 08:50:19,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ecfeb8343/4d9e78210efa428899ccc8240993f45d [2020-09-25 08:50:19,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:50:19,555 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:50:19,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:50:19,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:50:19,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:50:19,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:50:19" (1/1) ... [2020-09-25 08:50:19,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4365ba2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:50:19, skipping insertion in model container [2020-09-25 08:50:19,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:50:19" (1/1) ... [2020-09-25 08:50:19,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:50:19,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:50:20,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:50:20,066 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:50:20,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:50:20,362 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:50:20,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:50:20 WrapperNode [2020-09-25 08:50:20,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:50:20,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:50:20,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:50:20,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:50:20,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:50:20" (1/1) ... [2020-09-25 08:50:20,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:50:20" (1/1) ... [2020-09-25 08:50:20,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:50:20" (1/1) ... [2020-09-25 08:50:20,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:50:20" (1/1) ... [2020-09-25 08:50:20,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:50:20" (1/1) ... [2020-09-25 08:50:20,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:50:20" (1/1) ... [2020-09-25 08:50:20,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:50:20" (1/1) ... [2020-09-25 08:50:20,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:50:20,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:50:20,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:50:20,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:50:20,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:50:20" (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 08:50:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:50:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:50:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:50:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:50:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:50:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:50:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 08:50:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:50:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 08:50:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:50:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:50:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:50:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:50:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:50:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:50:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 08:50:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:50:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 08:50:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 08:50:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 08:50:20,588 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:50:20,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:50:20,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:50:20,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:50:20,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:50:20,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:50:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:50:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:50:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:50:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:50:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:50:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:50:20,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:50:20,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:50:20,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 08:50:20,590 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:50:20,590 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:50:20,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:50:20,591 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:50:20,591 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:50:20,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:50:20,591 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:50:20,591 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:50:20,591 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:50:20,591 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:50:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:50:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:50:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:50:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:50:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:50:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:50:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:50:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 08:50:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:50:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:50:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:50:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:50:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:50:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:50:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 08:50:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 08:50:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:50:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:50:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:50:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:50:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 08:50:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 08:50:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:50:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 08:50:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:50:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:50:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:50:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 08:50:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:50:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:50:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:50:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:50:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:50:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:50:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:50:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:50:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:50:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:50:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:50:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:50:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:50:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:50:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:50:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:50:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:50:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:50:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:50:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:50:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:50:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:50:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:50:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:50:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:50:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:50:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:50:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:50:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:50:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:50:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:50:21,982 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:50:21,983 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:50:21,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:50:21 BoogieIcfgContainer [2020-09-25 08:50:21,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:50:21,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:50:21,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:50:21,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:50:21,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:50:19" (1/3) ... [2020-09-25 08:50:21,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff518eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:50:21, skipping insertion in model container [2020-09-25 08:50:21,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:50:20" (2/3) ... [2020-09-25 08:50:21,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff518eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:50:21, skipping insertion in model container [2020-09-25 08:50:21,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:50:21" (3/3) ... [2020-09-25 08:50:22,000 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2020-09-25 08:50:22,012 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:50:22,024 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:50:22,048 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:50:22,091 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:50:22,091 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:50:22,091 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:50:22,091 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:50:22,091 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:50:22,092 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:50:22,092 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:50:22,092 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:50:22,132 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states. [2020-09-25 08:50:22,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 08:50:22,153 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:50:22,155 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 08:50:22,155 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:50:22,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:50:22,164 INFO L82 PathProgramCache]: Analyzing trace with hash -593535945, now seen corresponding path program 1 times [2020-09-25 08:50:22,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:50:22,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631719775] [2020-09-25 08:50:22,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:50:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:22,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:22,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:24,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:24,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:27,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:27,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:27,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 08:50:27,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:50:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 08:50:27,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:27,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:27,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:50:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:27,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:50:28,198 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:50:28,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:50:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:28,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:28,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:28,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:50:28,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:28,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 08:50:28,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:28,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:28,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:28,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:28,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:28,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:28,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:50:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:28,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:28,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:28,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:28,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:28,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:50:28,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:28,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:28,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:28,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:50:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:28,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:28,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:28,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:28,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:28,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:50:28,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:28,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:28,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:28,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:50:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:28,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:28,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:28,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:28,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:28,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:50:28,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:28,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:28,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:28,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:28,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:28,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:28,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:50:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:28,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:28,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:28,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:28,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:28,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:28,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:28,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:28,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:28,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:28,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:50:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:28,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:28,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:28,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:50:28,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:28,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:28,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:28,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:28,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:28,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:28,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:28,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:28,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:50:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:28,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:28,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:28,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:50:28,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:28,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:50:28,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:28,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:28,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:28,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 08:50:28,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:28,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:28,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:50:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:28,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:28,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:28,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:28,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:28,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:28,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:28,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:28,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:28,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 08:50:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:28,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:28,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:28,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:28,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:28,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:28,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:28,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:28,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:28,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:50:28,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:28,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:50:28,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:50:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:28,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:28,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:28,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:28,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:28,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:28,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:28,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:50:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:28,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:28,629 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 08:50:28,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631719775] [2020-09-25 08:50:28,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:50:28,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:50:28,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013029729] [2020-09-25 08:50:28,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:50:28,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:50:28,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:50:28,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:50:28,666 INFO L87 Difference]: Start difference. First operand 363 states. Second operand 4 states. [2020-09-25 08:50:30,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:50:30,624 INFO L93 Difference]: Finished difference Result 589 states and 690 transitions. [2020-09-25 08:50:30,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:50:30,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 08:50:30,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:50:30,666 INFO L225 Difference]: With dead ends: 589 [2020-09-25 08:50:30,667 INFO L226 Difference]: Without dead ends: 362 [2020-09-25 08:50:30,677 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 08:50:30,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-09-25 08:50:30,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 312. [2020-09-25 08:50:30,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-09-25 08:50:30,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 342 transitions. [2020-09-25 08:50:30,868 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 342 transitions. Word has length 160 [2020-09-25 08:50:30,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:50:30,869 INFO L479 AbstractCegarLoop]: Abstraction has 312 states and 342 transitions. [2020-09-25 08:50:30,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:50:30,870 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 342 transitions. [2020-09-25 08:50:30,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 08:50:30,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:50:30,875 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 08:50:30,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:50:30,876 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:50:30,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:50:30,876 INFO L82 PathProgramCache]: Analyzing trace with hash 151672551, now seen corresponding path program 1 times [2020-09-25 08:50:30,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:50:30,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460103775] [2020-09-25 08:50:30,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:50:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:31,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:31,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:32,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:33,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:34,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:35,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:35,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 08:50:35,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:50:35,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 08:50:35,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:35,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:35,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:50:35,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:50:35,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:50:35,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:36,238 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:50:36,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:50:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:36,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:36,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:36,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:50:36,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:36,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 08:50:36,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:36,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:36,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:36,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:50:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:36,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:36,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:36,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:36,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:36,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:36,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:36,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:36,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:36,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:36,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:36,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:36,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:50:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:36,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:36,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:36,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:36,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:36,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:50:36,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:36,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:36,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:36,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:50:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:36,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:36,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:36,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:36,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:50:36,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:36,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:36,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:36,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:50:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:36,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:36,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:36,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:36,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:36,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:36,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:36,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:36,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:36,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:36,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:36,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:50:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:36,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:36,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:36,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:50:36,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:36,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:36,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:36,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:36,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:36,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:36,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:36,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:50:36,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:50:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:36,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:36,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:36,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:50:36,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:36,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:50:36,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:36,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:36,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:36,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 08:50:36,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:36,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:36,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:50:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:36,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:36,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:36,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:36,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:36,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:50:36,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:36,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:36,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:36,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:36,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:36,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:36,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 08:50:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:36,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:36,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:36,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:36,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:36,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:36,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:36,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:36,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:36,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:50:36,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:36,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:36,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 08:50:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:36,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:36,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:36,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:36,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:36,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:36,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:36,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:50:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:36,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:50:36,494 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 08:50:36,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460103775] [2020-09-25 08:50:36,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:50:36,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:50:36,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116771162] [2020-09-25 08:50:36,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:50:36,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:50:36,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:50:36,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:50:36,498 INFO L87 Difference]: Start difference. First operand 312 states and 342 transitions. Second operand 5 states. [2020-09-25 08:50:37,234 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:50:38,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:50:38,433 INFO L93 Difference]: Finished difference Result 514 states and 582 transitions. [2020-09-25 08:50:38,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:50:38,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 08:50:38,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:50:38,438 INFO L225 Difference]: With dead ends: 514 [2020-09-25 08:50:38,438 INFO L226 Difference]: Without dead ends: 351 [2020-09-25 08:50:38,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:50:38,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-09-25 08:50:38,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 302. [2020-09-25 08:50:38,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-09-25 08:50:38,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 329 transitions. [2020-09-25 08:50:38,489 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 329 transitions. Word has length 161 [2020-09-25 08:50:38,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:50:38,490 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 329 transitions. [2020-09-25 08:50:38,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:50:38,490 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 329 transitions. [2020-09-25 08:50:38,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 08:50:38,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:50:38,494 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 08:50:38,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:50:38,494 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:50:38,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:50:38,495 INFO L82 PathProgramCache]: Analyzing trace with hash 530344647, now seen corresponding path program 1 times [2020-09-25 08:50:38,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:50:38,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400131297] [2020-09-25 08:50:38,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:50:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:38,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:38,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:39,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:40,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:43,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:43,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 08:50:43,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:50:43,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 08:50:43,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:43,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:43,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:50:43,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 08:50:43,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:50:43,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:43,864 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:50:43,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:50:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:43,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:43,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:43,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:50:43,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:43,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 08:50:43,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:43,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:43,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:50:44,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:50:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:44,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:44,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:44,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:44,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:44,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:44,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:44,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:44,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:44,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:44,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:44,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:44,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:50:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:44,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:44,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:44,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:44,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:44,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:44,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:44,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:44,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:44,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:50:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:44,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:44,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:44,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:44,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:44,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:50:44,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:44,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:44,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:44,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:44,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:44,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:44,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:50:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:44,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:44,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:44,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:44,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:44,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:50:44,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:44,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:44,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:44,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:44,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:44,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:44,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:50:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:44,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:44,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:44,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:50:44,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:44,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:44,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:44,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:44,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:44,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:44,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:44,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:44,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:50:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:44,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:44,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:44,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:50:44,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:44,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:50:44,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:44,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:50:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:50:44,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:44,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:50:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:44,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:44,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:44,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:50:44,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:44,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:50:44,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:44,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:44,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:50:44,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:44,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:50:44,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:44,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:50:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:44,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:44,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:44,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:44,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:44,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:44,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:44,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:44,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:44,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:44,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:44,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:44,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 08:50:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:44,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:44,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:44,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:44,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:44,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:44,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:44,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:50:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:44,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:44,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 08:50:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:44,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:44,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:44,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:44,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:44,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:44,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:44,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:44,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:44,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:50:44,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:44,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:50:44,202 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 08:50:44,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400131297] [2020-09-25 08:50:44,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:50:44,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:50:44,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787346259] [2020-09-25 08:50:44,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:50:44,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:50:44,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:50:44,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:50:44,207 INFO L87 Difference]: Start difference. First operand 302 states and 329 transitions. Second operand 6 states. [2020-09-25 08:50:44,685 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:50:45,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:50:45,884 INFO L93 Difference]: Finished difference Result 561 states and 647 transitions. [2020-09-25 08:50:45,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:50:45,885 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 08:50:45,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:50:45,890 INFO L225 Difference]: With dead ends: 561 [2020-09-25 08:50:45,890 INFO L226 Difference]: Without dead ends: 374 [2020-09-25 08:50:45,892 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 08:50:45,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-09-25 08:50:45,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 302. [2020-09-25 08:50:45,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-09-25 08:50:45,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 328 transitions. [2020-09-25 08:50:45,983 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 328 transitions. Word has length 174 [2020-09-25 08:50:45,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:50:45,985 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 328 transitions. [2020-09-25 08:50:45,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:50:45,986 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 328 transitions. [2020-09-25 08:50:45,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 08:50:45,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:50:45,989 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:50:45,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:50:45,989 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:50:45,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:50:45,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1028091402, now seen corresponding path program 1 times [2020-09-25 08:50:45,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:50:45,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [35799269] [2020-09-25 08:50:45,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:50:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:46,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:46,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:46,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:46,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:48,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:48,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:49,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:50,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-25 08:50:51,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 08:50:51,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 08:50:51,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:50:51,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-25 08:50:51,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 08:50:51,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:51,425 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:50:51,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:50:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:50:51,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 08:50:51,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:51,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:51,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:51,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:50:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:51,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:50:51,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:51,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:51,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:51,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:50:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:51,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:51,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:51,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:51,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:51,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:50:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:51,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:50:51,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:51,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:51,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:51,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:50:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:51,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:51,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:51,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:51,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:50:51,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:50:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:50:51,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:51,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:50:51,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:50:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:50:51,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:51,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:51,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:51,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:50:51,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:50:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:50:51,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:50:51,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:51,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:51,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:51,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:50:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:51,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:50:51,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:50:51,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:50:51,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:51,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 08:50:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 08:50:51,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:50:51,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 08:50:51,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:50:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:50:51,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:51,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:50:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 08:50:51,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:50:51,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 08:50:51,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:50:51,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:50:51,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:50:51,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:51,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:50:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:50:51,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:50:51,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:50:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:50:51,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 08:50:51,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:50:51,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:50:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:50:51,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:50:51,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:50:51,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:50:51,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:50:51,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 08:50:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:51,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:50:51,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:50:51,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:50:51,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:50:51,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-09-25 08:50:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:50:51,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:50:51,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:50:51,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:50:51,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:50:51,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:50:51,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:50:51,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:50:51,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:50:51,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:50:51,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:50:51,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:50:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 08:50:52,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [35799269] [2020-09-25 08:50:52,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:50:52,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 08:50:52,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814973675] [2020-09-25 08:50:52,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 08:50:52,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:50:52,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 08:50:52,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:50:52,015 INFO L87 Difference]: Start difference. First operand 302 states and 328 transitions. Second operand 12 states. [2020-09-25 08:50:52,772 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:50:53,809 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:50:54,377 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 08:50:55,886 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:50:56,230 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 08:50:56,604 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:50:57,303 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:50:57,646 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:50:57,964 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:50:58,400 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:50:59,629 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:50:59,976 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 08:51:00,357 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:51:00,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:51:00,652 INFO L93 Difference]: Finished difference Result 771 states and 916 transitions. [2020-09-25 08:51:00,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 08:51:00,653 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 192 [2020-09-25 08:51:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:51:00,658 INFO L225 Difference]: With dead ends: 771 [2020-09-25 08:51:00,658 INFO L226 Difference]: Without dead ends: 584 [2020-09-25 08:51:00,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=361, Invalid=1199, Unknown=0, NotChecked=0, Total=1560 [2020-09-25 08:51:00,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-09-25 08:51:00,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 443. [2020-09-25 08:51:00,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-09-25 08:51:00,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 476 transitions. [2020-09-25 08:51:00,727 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 476 transitions. Word has length 192 [2020-09-25 08:51:00,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:51:00,727 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 476 transitions. [2020-09-25 08:51:00,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 08:51:00,728 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 476 transitions. [2020-09-25 08:51:00,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-25 08:51:00,731 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:51:00,731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:00,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:51:00,732 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:51:00,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:51:00,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1088421938, now seen corresponding path program 1 times [2020-09-25 08:51:00,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:51:00,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552532037] [2020-09-25 08:51:00,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:51:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:00,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:01,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:01,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-09-25 08:51:01,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:01,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 791 [2020-09-25 08:51:01,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:01,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:51:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 211 [2020-09-25 08:51:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:51:01,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:51:01,890 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:51:01,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:51:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:01,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:51:02,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 08:51:02,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:51:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:51:02,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:51:02,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:51:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:51:02,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:51:02,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:51:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:51:02,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:51:02,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:51:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:51:02,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:51:02,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:51:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:51:02,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:51:02,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:51:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:51:02,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:51:02,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:51:02,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:51:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:51:02,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:51:02,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:51:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:51:02,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:51:02,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 08:51:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:51:02,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 08:51:02,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:51:02,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 08:51:02,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:51:02,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:51:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 08:51:02,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 08:51:02,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:51:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 08:51:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:51:02,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:51:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 08:51:02,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 08:51:02,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:51:02,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 08:51:02,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:51:02,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:51:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 08:51:02,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 08:51:02,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:51:02,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 08:51:02,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:51:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:51:02,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:51:02,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:51:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 08:51:02,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:51:02,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 08:51:02,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:51:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 08:51:02,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:51:02,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:51:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:51:02,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:51:02,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 08:51:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:51:02,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:51:02,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:02,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-09-25 08:51:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:51:02,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:51:02,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:51:02,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:51:02,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-09-25 08:51:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:02,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:02,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:02,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:51:02,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:02,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:51:02,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:02,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:02,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:02,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:51:02,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:02,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:51:02,726 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 08:51:02,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552532037] [2020-09-25 08:51:02,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:51:02,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 08:51:02,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530212983] [2020-09-25 08:51:02,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 08:51:02,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:51:02,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 08:51:02,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:51:02,729 INFO L87 Difference]: Start difference. First operand 443 states and 476 transitions. Second operand 11 states. [2020-09-25 08:51:04,383 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:51:04,736 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 08:51:05,119 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 08:51:05,436 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:51:05,749 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:51:06,058 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190