/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:39:39,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:39:39,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:39:39,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:39:39,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:39:39,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:39:39,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:39:39,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:39:39,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:39:39,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:39:39,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:39:39,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:39:39,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:39:39,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:39:39,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:39:39,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:39:39,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:39:39,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:39:39,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:39:39,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:39:39,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:39:39,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:39:39,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:39:39,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:39:40,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:39:40,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:39:40,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:39:40,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:39:40,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:39:40,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:39:40,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:39:40,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:39:40,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:39:40,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:39:40,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:39:40,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:39:40,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:39:40,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:39:40,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:39:40,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:39:40,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:39:40,034 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:39:40,080 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:39:40,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:39:40,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:39:40,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:39:40,084 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:39:40,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:39:40,085 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:39:40,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:39:40,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:39:40,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:39:40,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:39:40,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:39:40,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:39:40,087 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:39:40,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:39:40,088 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:39:40,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:39:40,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:39:40,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:39:40,089 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:39:40,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:39:40,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:39:40,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:39:40,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:39:40,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:39:40,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:39:40,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:39:40,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:39:40,091 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:39:40,091 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:39:40,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:39:40,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:39:40,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:39:40,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:39:40,603 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:39:40,604 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2020-09-25 07:39:40,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52c955777/b136821f71b14266829a505d4a88b7e3/FLAGbc2e9701f [2020-09-25 07:39:41,277 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:39:41,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2020-09-25 07:39:41,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52c955777/b136821f71b14266829a505d4a88b7e3/FLAGbc2e9701f [2020-09-25 07:39:41,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52c955777/b136821f71b14266829a505d4a88b7e3 [2020-09-25 07:39:41,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:39:41,569 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:39:41,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:39:41,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:39:41,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:39:41,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:39:41" (1/1) ... [2020-09-25 07:39:41,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:41, skipping insertion in model container [2020-09-25 07:39:41,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:39:41" (1/1) ... [2020-09-25 07:39:41,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:39:41,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:39:42,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:39:42,066 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:39:42,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:39:42,346 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:39:42,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:42 WrapperNode [2020-09-25 07:39:42,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:39:42,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:39:42,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:39:42,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:39:42,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:42" (1/1) ... [2020-09-25 07:39:42,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:42" (1/1) ... [2020-09-25 07:39:42,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:42" (1/1) ... [2020-09-25 07:39:42,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:42" (1/1) ... [2020-09-25 07:39:42,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:42" (1/1) ... [2020-09-25 07:39:42,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:42" (1/1) ... [2020-09-25 07:39:42,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:42" (1/1) ... [2020-09-25 07:39:42,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:39:42,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:39:42,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:39:42,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:39:42,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:39:42,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:39:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:39:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:39:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:39:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:39:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:39:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:39:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:39:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:39:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:39:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:39:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:39:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:39:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:39:42,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:39:42,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:39:42,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:39:42,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:39:42,599 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:39:42,600 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:39:42,600 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:39:42,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:39:42,600 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:39:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:39:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:39:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:39:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:39:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:39:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:39:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:39:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:39:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:39:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:39:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:39:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:39:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:39:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:39:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:39:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:39:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:39:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:39:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:39:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:39:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:39:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:39:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:39:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:39:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:39:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:39:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:39:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:39:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:39:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:39:42,605 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:39:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:39:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:39:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:39:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:39:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:39:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:39:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:39:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:39:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:39:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:39:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:39:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:39:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:39:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:39:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:39:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:39:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:39:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:39:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:39:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:39:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:39:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:39:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:39:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:39:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:39:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:39:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:39:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:39:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:39:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:39:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:39:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:39:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:39:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:39:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:39:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:39:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:39:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:39:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:39:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:39:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:39:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:39:43,776 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:39:43,777 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:39:43,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:39:43 BoogieIcfgContainer [2020-09-25 07:39:43,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:39:43,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:39:43,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:39:43,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:39:43,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:39:41" (1/3) ... [2020-09-25 07:39:43,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f012b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:39:43, skipping insertion in model container [2020-09-25 07:39:43,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:42" (2/3) ... [2020-09-25 07:39:43,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f012b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:39:43, skipping insertion in model container [2020-09-25 07:39:43,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:39:43" (3/3) ... [2020-09-25 07:39:43,801 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2020-09-25 07:39:43,813 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:39:43,828 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:39:43,853 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:39:43,902 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:39:43,902 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:39:43,902 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:39:43,902 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:39:43,902 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:39:43,903 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:39:43,904 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:39:43,904 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:39:43,947 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states. [2020-09-25 07:39:43,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:39:43,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:43,989 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] [2020-09-25 07:39:43,990 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:44,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:44,001 INFO L82 PathProgramCache]: Analyzing trace with hash -548539878, now seen corresponding path program 1 times [2020-09-25 07:39:44,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:44,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257405878] [2020-09-25 07:39:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:44,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:44,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:46,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:46,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:48,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 07:39:49,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:39:49,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:39:49,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:39:49,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:39:49,860 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:49,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:49,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 07:39:49,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:49,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:39:50,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:50,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:50,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:50,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:50,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:50,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:50,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:50,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:50,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:50,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:50,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:50,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:50,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:50,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:39:50,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:50,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:50,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:50,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:50,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:50,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:50,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:50,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:50,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:50,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:50,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:50,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:39:50,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:50,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:50,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:50,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:50,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:50,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:50,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:50,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:50,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:50,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:50,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:50,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:50,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:50,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:50,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:50,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:50,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:50,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:50,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:50,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:50,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:50,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:50,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:50,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:50,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:50,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:50,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:50,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:39:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:50,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:50,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:50,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:50,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:50,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:39:50,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:50,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:50,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:50,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:39:50,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:50,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:50,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:50,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:50,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:50,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:50,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:50,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:50,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:50,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:50,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:50,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:50,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:50,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:50,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 07:39:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:50,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:50,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:50,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:50,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:50,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:39:50,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:50,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:50,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:50,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:39:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:50,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:50,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:50,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:50,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:50,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:50,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:50,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:50,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:50,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:39:50,260 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 07:39:50,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257405878] [2020-09-25 07:39:50,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:50,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:39:50,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029448510] [2020-09-25 07:39:50,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:39:50,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:50,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:39:50,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:39:50,297 INFO L87 Difference]: Start difference. First operand 323 states. Second operand 4 states. [2020-09-25 07:39:51,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:51,868 INFO L93 Difference]: Finished difference Result 505 states and 591 transitions. [2020-09-25 07:39:51,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:39:51,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 07:39:51,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:51,894 INFO L225 Difference]: With dead ends: 505 [2020-09-25 07:39:51,894 INFO L226 Difference]: Without dead ends: 318 [2020-09-25 07:39:51,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:39:51,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-25 07:39:52,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 272. [2020-09-25 07:39:52,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-09-25 07:39:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 295 transitions. [2020-09-25 07:39:52,014 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 295 transitions. Word has length 160 [2020-09-25 07:39:52,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:52,015 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 295 transitions. [2020-09-25 07:39:52,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:39:52,015 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 295 transitions. [2020-09-25 07:39:52,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:39:52,019 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:52,020 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 07:39:52,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:39:52,020 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:52,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:52,021 INFO L82 PathProgramCache]: Analyzing trace with hash -2128164298, now seen corresponding path program 1 times [2020-09-25 07:39:52,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:52,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421084787] [2020-09-25 07:39:52,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:52,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:52,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:53,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:54,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:55,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 07:39:57,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:39:57,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:39:57,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:57,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:39:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:39:57,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:57,423 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:57,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:57,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 07:39:57,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:57,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:57,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:57,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:57,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:57,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:57,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:39:57,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:57,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:57,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:57,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:57,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:57,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:57,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:39:57,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:57,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:57,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:57,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:57,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:57,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:57,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:57,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:57,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:57,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:57,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:57,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:57,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:57,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:57,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:57,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 07:39:57,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:39:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:57,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:57,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:57,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:39:57,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:57,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:57,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:57,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:57,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:57,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:57,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:39:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:57,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:57,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:57,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:57,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:39:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:57,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:57,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:57,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:57,711 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 07:39:57,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421084787] [2020-09-25 07:39:57,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:57,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:39:57,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385544437] [2020-09-25 07:39:57,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:39:57,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:57,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:39:57,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:39:57,717 INFO L87 Difference]: Start difference. First operand 272 states and 295 transitions. Second operand 5 states. [2020-09-25 07:39:58,405 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:59,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:59,577 INFO L93 Difference]: Finished difference Result 430 states and 483 transitions. [2020-09-25 07:39:59,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:39:59,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 07:39:59,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:59,591 INFO L225 Difference]: With dead ends: 430 [2020-09-25 07:39:59,592 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 07:39:59,594 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 07:39:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 07:39:59,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 262. [2020-09-25 07:39:59,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-25 07:39:59,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 282 transitions. [2020-09-25 07:39:59,653 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 282 transitions. Word has length 161 [2020-09-25 07:39:59,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:59,653 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 282 transitions. [2020-09-25 07:39:59,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:39:59,654 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 282 transitions. [2020-09-25 07:39:59,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 07:39:59,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:59,657 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 07:39:59,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:39:59,657 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:59,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:59,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1816762298, now seen corresponding path program 1 times [2020-09-25 07:39:59,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:59,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112044626] [2020-09-25 07:39:59,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:59,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:59,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:00,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:01,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:04,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:04,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 07:40:04,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:40:04,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:40:04,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:04,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 07:40:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:40:04,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:05,029 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:40:05,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:40:05,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 07:40:05,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:05,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:40:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:05,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:05,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:05,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:40:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:05,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:05,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:05,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:40:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:05,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:40:05,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:05,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:40:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:05,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:40:05,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:05,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:40:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:05,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:05,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:05,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:40:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:05,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:40:05,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:05,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:40:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:05,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:40:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:40:05,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:40:05,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:05,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:40:05,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:05,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:05,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:05,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:05,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 07:40:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:05,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:05,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:40:05,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:05,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 07:40:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:05,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:05,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:40:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:05,338 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 07:40:05,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112044626] [2020-09-25 07:40:05,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:40:05,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:40:05,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55166662] [2020-09-25 07:40:05,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:40:05,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:40:05,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:40:05,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:40:05,423 INFO L87 Difference]: Start difference. First operand 262 states and 282 transitions. Second operand 6 states. [2020-09-25 07:40:06,119 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:40:07,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:40:07,374 INFO L93 Difference]: Finished difference Result 477 states and 548 transitions. [2020-09-25 07:40:07,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:40:07,375 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 07:40:07,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:40:07,378 INFO L225 Difference]: With dead ends: 477 [2020-09-25 07:40:07,378 INFO L226 Difference]: Without dead ends: 330 [2020-09-25 07:40:07,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:40:07,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-09-25 07:40:07,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 262. [2020-09-25 07:40:07,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-25 07:40:07,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 281 transitions. [2020-09-25 07:40:07,420 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 281 transitions. Word has length 174 [2020-09-25 07:40:07,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:40:07,421 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 281 transitions. [2020-09-25 07:40:07,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:40:07,421 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 281 transitions. [2020-09-25 07:40:07,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 07:40:07,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:40:07,425 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] [2020-09-25 07:40:07,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:40:07,426 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:40:07,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:40:07,426 INFO L82 PathProgramCache]: Analyzing trace with hash -113759087, now seen corresponding path program 1 times [2020-09-25 07:40:07,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:40:07,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204367150] [2020-09-25 07:40:07,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:40:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:07,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:07,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:08,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:09,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:10,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:11,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:11,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-25 07:40:12,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:40:12,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 07:40:12,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:40:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-25 07:40:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:40:12,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:12,750 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:40:12,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:40:12,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 07:40:12,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:12,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:40:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:12,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:12,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:40:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:12,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:12,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:40:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:12,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:12,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:12,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:40:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:12,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:12,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:40:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:12,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:12,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:40:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:12,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:12,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:12,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:40:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:40:12,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:12,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:12,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:12,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:12,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:40:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:40:12,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:40:12,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:40:12,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:40:12,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:40:12,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:40:12,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:13,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:40:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:13,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:13,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:13,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:40:13,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:13,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:40:13,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:13,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:13,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:40:13,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:40:13,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:40:13,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:13,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:40:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:13,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:13,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:13,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:13,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:13,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:40:13,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:13,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:13,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:13,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:13,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:40:13,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:13,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 07:40:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:13,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:13,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:13,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:13,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:13,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:13,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:40:13,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:13,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:13,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 07:40:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:13,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:13,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:13,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:13,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:13,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:13,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:13,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:13,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:13,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:40:13,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:13,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:13,149 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 07:40:13,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204367150] [2020-09-25 07:40:13,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:40:13,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:40:13,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751113919] [2020-09-25 07:40:13,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:40:13,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:40:13,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:40:13,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:40:13,153 INFO L87 Difference]: Start difference. First operand 262 states and 281 transitions. Second operand 9 states. [2020-09-25 07:40:13,880 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:40:15,886 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:40:16,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:40:16,775 INFO L93 Difference]: Finished difference Result 666 states and 793 transitions. [2020-09-25 07:40:16,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 07:40:16,782 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 187 [2020-09-25 07:40:16,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:40:16,790 INFO L225 Difference]: With dead ends: 666 [2020-09-25 07:40:16,791 INFO L226 Difference]: Without dead ends: 519 [2020-09-25 07:40:16,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2020-09-25 07:40:16,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2020-09-25 07:40:16,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 381. [2020-09-25 07:40:16,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-25 07:40:16,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 412 transitions. [2020-09-25 07:40:16,858 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 412 transitions. Word has length 187 [2020-09-25 07:40:16,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:40:16,859 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 412 transitions. [2020-09-25 07:40:16,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:40:16,859 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 412 transitions. [2020-09-25 07:40:16,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 07:40:16,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:40:16,862 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] [2020-09-25 07:40:16,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:40:16,862 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:40:16,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:40:16,863 INFO L82 PathProgramCache]: Analyzing trace with hash 2080657374, now seen corresponding path program 1 times [2020-09-25 07:40:16,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:40:16,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072213617] [2020-09-25 07:40:16,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:40:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:16,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:17,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:17,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:17,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:21,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:21,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:21,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 07:40:21,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:40:21,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 07:40:21,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:21,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:40:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-25 07:40:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 07:40:21,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:22,296 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:40:22,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:40:22,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 07:40:22,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:22,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:22,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:40:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:22,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:22,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:22,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:22,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:40:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:22,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:22,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:22,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:22,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:40:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:22,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:40:22,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:22,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:22,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:22,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:40:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:22,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:22,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:22,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:22,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:40:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:22,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:22,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:22,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:22,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:40:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:22,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:22,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:22,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:22,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:40:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:40:22,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:22,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:22,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:22,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:22,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:22,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:40:22,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:22,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:22,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:22,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:40:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:40:22,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:40:22,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 07:40:22,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:22,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:40:22,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:22,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:40:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:40:22,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:40:22,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:22,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:40:22,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:22,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:40:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:40:22,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:40:22,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:22,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:40:22,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:40:22,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:40:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:40:22,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:40:22,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:22,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:22,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:40:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:22,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:22,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:40:22,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:22,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 07:40:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:22,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:40:22,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:22,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:40:22,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:22,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 07:40:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:22,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:22,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:22,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:22,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:22,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:40:22,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:22,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:40:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:40:22,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:22,767 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 07:40:22,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072213617] [2020-09-25 07:40:22,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:40:22,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 07:40:22,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853611838] [2020-09-25 07:40:22,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 07:40:22,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:40:22,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 07:40:22,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:40:22,769 INFO L87 Difference]: Start difference. First operand 381 states and 412 transitions. Second operand 11 states. [2020-09-25 07:40:23,416 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:40:24,485 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:40:24,801 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:40:25,865 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:40:26,247 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:40:26,598 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:40:27,364 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:40:27,695 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:40:28,026 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:40:28,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:40:28,917 INFO L93 Difference]: Finished difference Result 784 states and 920 transitions. [2020-09-25 07:40:28,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 07:40:28,917 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-09-25 07:40:28,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:40:28,922 INFO L225 Difference]: With dead ends: 784 [2020-09-25 07:40:28,922 INFO L226 Difference]: Without dead ends: 518 [2020-09-25 07:40:28,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2020-09-25 07:40:28,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-09-25 07:40:28,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 380. [2020-09-25 07:40:28,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-25 07:40:28,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 409 transitions. [2020-09-25 07:40:28,976 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 409 transitions. Word has length 211 [2020-09-25 07:40:28,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:40:28,977 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 409 transitions. [2020-09-25 07:40:28,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 07:40:28,977 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 409 transitions. [2020-09-25 07:40:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 07:40:28,980 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:40:28,980 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] [2020-09-25 07:40:28,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:40:28,981 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:40:28,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:40:28,981 INFO L82 PathProgramCache]: Analyzing trace with hash -841990399, now seen corresponding path program 1 times [2020-09-25 07:40:28,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:40:28,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851439532] [2020-09-25 07:40:28,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:40:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:29,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking...