/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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:12:13,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:12:13,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:12:13,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:12:13,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:12:13,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:12:13,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:12:13,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:12:13,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:12:13,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:12:13,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:12:13,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:12:13,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:12:13,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:12:13,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:12:13,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:12:13,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:12:13,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:12:13,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:12:13,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:12:13,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:12:13,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:12:13,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:12:13,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:12:13,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:12:13,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:12:13,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:12:13,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:12:13,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:12:13,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:12:13,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:12:13,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:12:13,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:12:13,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:12:13,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:12:13,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:12:13,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:12:13,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:12:13,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:12:13,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:12:13,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:12:14,000 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 05:12:14,048 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:12:14,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:12:14,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:12:14,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:12:14,051 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:12:14,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:12:14,051 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:12:14,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:12:14,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:12:14,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:12:14,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:12:14,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:12:14,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:12:14,054 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:12:14,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:12:14,055 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:12:14,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:12:14,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:12:14,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:12:14,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:12:14,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:12:14,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:12:14,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:12:14,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:12:14,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:12:14,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:12:14,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:12:14,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:12:14,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:12:14,057 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:12:14,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:12:14,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:12:14,550 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:12:14,552 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:12:14,552 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:12:14,553 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-09-25 05:12:14,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a5354ef89/7d2b3f2954f945769887aa367b6a7c27/FLAGb4ec00055 [2020-09-25 05:12:15,266 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:12:15,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-09-25 05:12:15,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a5354ef89/7d2b3f2954f945769887aa367b6a7c27/FLAGb4ec00055 [2020-09-25 05:12:15,527 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a5354ef89/7d2b3f2954f945769887aa367b6a7c27 [2020-09-25 05:12:15,540 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:12:15,547 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:12:15,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:12:15,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:12:15,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:12:15,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:12:15" (1/1) ... [2020-09-25 05:12:15,558 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 05:12:15, skipping insertion in model container [2020-09-25 05:12:15,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:12:15" (1/1) ... [2020-09-25 05:12:15,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:12:15,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:12:16,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:12:16,146 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:12:16,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:12:16,263 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:12:16,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:16 WrapperNode [2020-09-25 05:12:16,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:12:16,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:12:16,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:12:16,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:12:16,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:16" (1/1) ... [2020-09-25 05:12:16,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:16" (1/1) ... [2020-09-25 05:12:16,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:16" (1/1) ... [2020-09-25 05:12:16,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:16" (1/1) ... [2020-09-25 05:12:16,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:16" (1/1) ... [2020-09-25 05:12:16,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:16" (1/1) ... [2020-09-25 05:12:16,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:16" (1/1) ... [2020-09-25 05:12:16,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:12:16,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:12:16,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:12:16,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:12:16,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:16" (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 05:12:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:12:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:12:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:12:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:12:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:12:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:12:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:12:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:12:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:12:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:12:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:12:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:12:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:12:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:12:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:12:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:12:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:12:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:12:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:12:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:12:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:12:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:12:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:12:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:12:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:12:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:12:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:12:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:12:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:12:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:12:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:12:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:12:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:12:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:12:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:12:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:12:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:12:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:12:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:12:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:12:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:12:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:12:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:12:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:12:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:12:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:12:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:12:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:12:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:12:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:12:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:12:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:12:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:12:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:12:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:12:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:12:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:12:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:12:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:12:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:12:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:12:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:12:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:12:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:12:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:12:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:12:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:12:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:12:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:12:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:12:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:12:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:12:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:12:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:12:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:12:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:12:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:12:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:12:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:12:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:12:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:12:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:12:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:12:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:12:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:12:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:12:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:12:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:12:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:12:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:12:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:12:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:12:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:12:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:12:17,575 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:12:17,575 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:12:17,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:12:17 BoogieIcfgContainer [2020-09-25 05:12:17,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:12:17,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:12:17,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:12:17,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:12:17,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:12:15" (1/3) ... [2020-09-25 05:12:17,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dab8414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:12:17, skipping insertion in model container [2020-09-25 05:12:17,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:16" (2/3) ... [2020-09-25 05:12:17,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dab8414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:12:17, skipping insertion in model container [2020-09-25 05:12:17,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:12:17" (3/3) ... [2020-09-25 05:12:17,592 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2020-09-25 05:12:17,604 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:12:17,615 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:12:17,637 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:12:17,668 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:12:17,668 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:12:17,668 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:12:17,668 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:12:17,668 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:12:17,668 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:12:17,668 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:12:17,669 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:12:17,697 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-25 05:12:17,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 05:12:17,715 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:17,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:17,717 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:17,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:17,725 INFO L82 PathProgramCache]: Analyzing trace with hash 581335990, now seen corresponding path program 1 times [2020-09-25 05:12:17,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:17,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947678213] [2020-09-25 05:12:17,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:18,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:18,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:20,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:20,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:21,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:23,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:12:23,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:12:23,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-25 05:12:23,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:23,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:12:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:23,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 05:12:23,633 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:23,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:23,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:23,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:23,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:23,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 05:12:23,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:23,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:23,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:23,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:23,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:23,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:23,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:23,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:23,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:23,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:23,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:23,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:23,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:23,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:23,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:23,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:23,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:23,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:23,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:23,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:23,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:23,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:23,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:23,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:23,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:23,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:23,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:12:23,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:23,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:23,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:23,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:23,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:23,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:23,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:23,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:23,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:23,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:23,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:23,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:23,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:23,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:23,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:23,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:23,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:23,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:23,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:23,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:23,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:23,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:23,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 05:12:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:23,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:23,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:23,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:23,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:23,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:23,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:23,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:23,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:23,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:23,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:23,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:12:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:23,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:23,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:23,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:23,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:23,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:23,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:23,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:12:23,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947678213] [2020-09-25 05:12:23,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:23,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:12:24,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654084391] [2020-09-25 05:12:24,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:12:24,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:24,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:12:24,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:12:24,033 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 4 states. [2020-09-25 05:12:25,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:25,292 INFO L93 Difference]: Finished difference Result 463 states and 549 transitions. [2020-09-25 05:12:25,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:12:25,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 05:12:25,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:25,324 INFO L225 Difference]: With dead ends: 463 [2020-09-25 05:12:25,324 INFO L226 Difference]: Without dead ends: 299 [2020-09-25 05:12:25,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 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 05:12:25,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-25 05:12:25,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 249. [2020-09-25 05:12:25,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 05:12:25,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-09-25 05:12:25,504 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 148 [2020-09-25 05:12:25,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:25,508 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-09-25 05:12:25,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:12:25,508 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-09-25 05:12:25,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 05:12:25,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:25,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:25,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:12:25,520 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:25,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:25,520 INFO L82 PathProgramCache]: Analyzing trace with hash 170641553, now seen corresponding path program 1 times [2020-09-25 05:12:25,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:25,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906620581] [2020-09-25 05:12:25,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:25,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:25,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:28,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:29,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:30,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:30,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:12:30,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:12:30,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 05:12:30,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:30,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:30,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:30,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:12:30,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:12:30,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:30,906 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:30,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:30,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:31,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:31,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:31,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:31,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 05:12:31,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:31,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:31,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:31,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:31,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:31,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:31,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:31,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:31,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:31,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:31,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:31,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:31,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:31,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:31,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:31,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:31,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:31,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:31,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:31,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:31,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:31,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:31,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:31,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:31,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:31,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:31,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:31,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:31,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:31,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:31,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:31,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:31,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:31,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:31,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:31,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:31,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:31,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:31,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:31,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:31,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:31,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:31,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:31,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:31,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:31,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:31,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:31,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:31,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:31,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:31,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:31,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:31,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:31,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:31,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:31,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:31,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:31,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:31,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:31,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:31,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 05:12:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:31,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:31,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:31,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:31,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:31,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:12:31,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:31,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:31,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:31,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:12:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:31,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:31,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:31,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:31,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:31,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:31,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:31,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:31,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:31,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:31,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:31,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:31,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:12:31,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906620581] [2020-09-25 05:12:31,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:31,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:12:31,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381008272] [2020-09-25 05:12:31,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:12:31,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:31,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:12:31,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:12:31,215 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 5 states. [2020-09-25 05:12:31,799 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:12:32,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:32,829 INFO L93 Difference]: Finished difference Result 379 states and 430 transitions. [2020-09-25 05:12:32,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:12:32,829 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 05:12:32,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:32,836 INFO L225 Difference]: With dead ends: 379 [2020-09-25 05:12:32,836 INFO L226 Difference]: Without dead ends: 288 [2020-09-25 05:12:32,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:12:32,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-25 05:12:32,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 239. [2020-09-25 05:12:32,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 05:12:32,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 256 transitions. [2020-09-25 05:12:32,907 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 256 transitions. Word has length 149 [2020-09-25 05:12:32,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:32,910 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 256 transitions. [2020-09-25 05:12:32,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:12:32,910 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 256 transitions. [2020-09-25 05:12:32,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 05:12:32,912 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:32,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:32,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:12:32,913 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:32,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:32,914 INFO L82 PathProgramCache]: Analyzing trace with hash -896171093, now seen corresponding path program 1 times [2020-09-25 05:12:32,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:32,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300033612] [2020-09-25 05:12:32,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:33,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:33,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:35,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:37,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:37,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 05:12:37,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:12:37,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 05:12:37,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:37,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:37,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:37,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 05:12:37,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:12:37,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:38,232 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:38,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:38,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:38,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:38,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:38,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 05:12:38,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:38,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:38,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:38,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:38,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:38,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:38,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:38,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:38,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:38,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:38,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:38,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:38,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:38,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:38,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:38,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:38,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:38,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:38,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:38,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:38,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:38,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:38,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:38,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:38,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:38,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:38,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:12:38,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:38,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:38,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:38,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:38,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:38,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:38,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:38,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:38,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:38,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:38,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:38,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:38,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:38,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:38,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:38,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:38,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:38,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:38,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:38,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:38,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:38,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:12:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:38,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:38,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:38,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:38,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:38,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:38,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:38,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:38,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:38,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:12:38,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:38,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:12:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:38,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:38,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:38,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:38,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:38,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:38,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:38,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:38,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:38,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:38,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:38,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:12:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:38,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:38,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:38,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:38,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:38,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:38,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:38,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:38,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:38,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:38,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:38,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:12:38,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300033612] [2020-09-25 05:12:38,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:38,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:12:38,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001370759] [2020-09-25 05:12:38,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:12:38,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:38,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:12:38,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:12:38,486 INFO L87 Difference]: Start difference. First operand 239 states and 256 transitions. Second operand 6 states. [2020-09-25 05:12:38,996 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:12:40,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:40,625 INFO L93 Difference]: Finished difference Result 567 states and 662 transitions. [2020-09-25 05:12:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:12:40,625 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 05:12:40,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:40,631 INFO L225 Difference]: With dead ends: 567 [2020-09-25 05:12:40,631 INFO L226 Difference]: Without dead ends: 443 [2020-09-25 05:12:40,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:12:40,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-09-25 05:12:40,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 347. [2020-09-25 05:12:40,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-25 05:12:40,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 380 transitions. [2020-09-25 05:12:40,693 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 380 transitions. Word has length 162 [2020-09-25 05:12:40,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:40,694 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 380 transitions. [2020-09-25 05:12:40,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:12:40,694 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 380 transitions. [2020-09-25 05:12:40,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 05:12:40,697 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:40,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:40,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:12:40,698 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:40,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:40,698 INFO L82 PathProgramCache]: Analyzing trace with hash 600016420, now seen corresponding path program 1 times [2020-09-25 05:12:40,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:40,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656972312] [2020-09-25 05:12:40,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:40,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:41,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:41,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:44,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:45,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:45,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 05:12:45,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:12:45,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 05:12:45,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:45,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:45,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:12:45,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 05:12:45,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 05:12:45,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:46,126 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:46,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:46,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:46,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:46,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:46,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:46,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 05:12:46,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:46,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:46,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:46,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:46,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:46,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:46,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:46,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:46,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:46,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:46,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:46,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:46,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:46,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:46,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:46,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:46,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:46,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:46,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:46,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:46,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:46,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:46,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:46,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:46,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:46,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:46,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:46,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:46,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:46,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:46,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:46,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:46,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:46,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:46,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:46,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:46,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:46,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:46,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:46,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:46,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:46,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:46,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:46,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:46,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:46,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:46,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:46,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:46,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:46,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:46,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:46,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:46,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:46,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:46,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:46,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:12:46,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:46,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 05:12:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:46,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:46,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:46,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:12:46,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:46,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:46,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:46,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:46,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:46,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:46,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:12:46,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:46,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 05:12:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:46,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:46,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:46,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:46,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:46,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:46,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:46,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:46,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:12:46,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:46,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 05:12:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:46,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:46,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:46,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:46,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:46,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:46,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:46,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:46,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:46,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:46,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:12:46,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:46,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:12:46,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656972312] [2020-09-25 05:12:46,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:46,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:12:46,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149033649] [2020-09-25 05:12:46,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:12:46,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:46,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:12:46,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:12:46,460 INFO L87 Difference]: Start difference. First operand 347 states and 380 transitions. Second operand 6 states. [2020-09-25 05:12:47,131 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:12:49,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:49,301 INFO L93 Difference]: Finished difference Result 779 states and 958 transitions. [2020-09-25 05:12:49,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:12:49,302 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 05:12:49,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:49,309 INFO L225 Difference]: With dead ends: 779 [2020-09-25 05:12:49,309 INFO L226 Difference]: Without dead ends: 776 [2020-09-25 05:12:49,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:12:49,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-09-25 05:12:49,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 582. [2020-09-25 05:12:49,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2020-09-25 05:12:49,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 651 transitions. [2020-09-25 05:12:49,423 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 651 transitions. Word has length 167 [2020-09-25 05:12:49,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:49,424 INFO L479 AbstractCegarLoop]: Abstraction has 582 states and 651 transitions. [2020-09-25 05:12:49,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:12:49,424 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 651 transitions. [2020-09-25 05:12:49,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 05:12:49,428 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:49,428 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:49,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:12:49,429 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:49,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:49,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1911928907, now seen corresponding path program 1 times [2020-09-25 05:12:49,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:49,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293887836] [2020-09-25 05:12:49,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:49,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:49,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:49,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:50,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:54,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:54,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 05:12:54,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:12:54,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 05:12:54,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:54,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:12:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 05:12:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:12:54,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:54,851 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:54,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:54,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:54,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:54,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:54,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:54,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 05:12:54,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:54,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:54,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:55,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:55,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:55,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:55,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:55,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:55,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:55,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:55,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:55,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:55,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:55,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:55,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:55,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:55,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:55,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:55,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:55,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:55,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:55,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:55,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:55,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:55,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:55,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:55,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:55,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:55,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:55,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:55,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:55,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:55,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:55,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:55,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:55,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:55,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:55,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:55,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:55,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:55,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:55,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:55,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:55,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:55,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:55,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:55,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:55,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:55,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:55,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 05:12:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:55,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:12:55,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:55,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:55,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:55,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:55,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:55,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:12:55,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:55,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 05:12:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:55,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:12:55,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:12:55,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 05:12:55,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:55,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:55,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:12:55,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:12:55,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 05:12:55,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:55,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:12:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:55,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 05:12:55,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:55,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 05:12:55,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:55,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:12:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 05:12:55,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:55,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:12:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:55,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:55,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:55,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:55,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:55,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:55,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:55,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:55,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:55,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:55,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 05:12:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:55,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:55,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:55,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:12:55,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:55,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:55,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:12:55,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:55,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:12:55,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:55,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 05:12:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:55,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:55,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:55,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:55,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:55,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:55,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:55,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:55,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:55,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 05:12:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:55,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:55,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:55,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:55,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:55,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:55,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:55,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:55,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:55,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:55,474 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 05:12:55,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293887836] [2020-09-25 05:12:55,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:12:55,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 05:12:55,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280396240] [2020-09-25 05:12:55,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 05:12:55,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:55,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 05:12:55,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-25 05:12:55,476 INFO L87 Difference]: Start difference. First operand 582 states and 651 transitions. Second operand 14 states. [2020-09-25 05:12:56,033 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:12:57,464 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:12:57,783 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:58,436 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 05:12:59,036 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-09-25 05:12:59,620 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-09-25 05:13:00,396 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 05:13:01,147 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-25 05:13:01,720 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-09-25 05:13:02,356 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-09-25 05:13:03,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:03,296 INFO L93 Difference]: Finished difference Result 1379 states and 1688 transitions. [2020-09-25 05:13:03,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-25 05:13:03,297 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 217 [2020-09-25 05:13:03,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:03,302 INFO L225 Difference]: With dead ends: 1379 [2020-09-25 05:13:03,302 INFO L226 Difference]: Without dead ends: 912 [2020-09-25 05:13:03,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=359, Invalid=1201, Unknown=0, NotChecked=0, Total=1560 [2020-09-25 05:13:03,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-09-25 05:13:03,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 753. [2020-09-25 05:13:03,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-09-25 05:13:03,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 829 transitions. [2020-09-25 05:13:03,423 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 829 transitions. Word has length 217 [2020-09-25 05:13:03,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:03,424 INFO L479 AbstractCegarLoop]: Abstraction has 753 states and 829 transitions. [2020-09-25 05:13:03,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 05:13:03,424 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 829 transitions. [2020-09-25 05:13:03,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-09-25 05:13:03,429 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:03,430 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:03,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:13:03,430 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:03,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:03,430 INFO L82 PathProgramCache]: Analyzing trace with hash 585167395, now seen corresponding path program 1 times [2020-09-25 05:13:03,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:03,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594544294] [2020-09-25 05:13:03,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:03,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:03,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:03,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking...