/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:37:28,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:37:28,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:37:28,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:37:28,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:37:28,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:37:28,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:37:28,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:37:28,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:37:28,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:37:28,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:37:28,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:37:28,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:37:28,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:37:28,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:37:28,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:37:28,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:37:28,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:37:28,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:37:28,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:37:28,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:37:28,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:37:28,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:37:28,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:37:28,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:37:28,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:37:28,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:37:28,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:37:28,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:37:28,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:37:28,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:37:28,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:37:28,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:37:28,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:37:28,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:37:28,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:37:28,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:37:28,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:37:28,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:37:28,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:37:28,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:37:28,362 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:37:28,404 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:37:28,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:37:28,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:37:28,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:37:28,406 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:37:28,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:37:28,407 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:37:28,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:37:28,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:37:28,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:37:28,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:37:28,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:37:28,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:37:28,408 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:37:28,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:37:28,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:37:28,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:37:28,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:37:28,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:37:28,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:37:28,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:37:28,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:37:28,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:37:28,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:37:28,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:37:28,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:37:28,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:37:28,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:37:28,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:37:28,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:37:28,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:37:28,955 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:37:28,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:37:28,963 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:37:28,965 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:37:28,966 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-09-25 07:37:29,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e578436ec/1de1fee56f5f46ea9dc74dd07aae7f3c/FLAGf1d569324 [2020-09-25 07:37:29,702 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:37:29,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-09-25 07:37:29,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e578436ec/1de1fee56f5f46ea9dc74dd07aae7f3c/FLAGf1d569324 [2020-09-25 07:37:29,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e578436ec/1de1fee56f5f46ea9dc74dd07aae7f3c [2020-09-25 07:37:29,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:37:29,982 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:37:29,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:37:29,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:37:29,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:37:29,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:37:29" (1/1) ... [2020-09-25 07:37:29,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:29, skipping insertion in model container [2020-09-25 07:37:29,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:37:29" (1/1) ... [2020-09-25 07:37:30,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:37:30,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:37:30,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:37:30,628 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:37:30,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:37:30,746 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:37:30,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:30 WrapperNode [2020-09-25 07:37:30,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:37:30,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:37:30,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:37:30,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:37:30,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:30" (1/1) ... [2020-09-25 07:37:30,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:30" (1/1) ... [2020-09-25 07:37:30,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:30" (1/1) ... [2020-09-25 07:37:30,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:30" (1/1) ... [2020-09-25 07:37:30,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:30" (1/1) ... [2020-09-25 07:37:30,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:30" (1/1) ... [2020-09-25 07:37:30,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:30" (1/1) ... [2020-09-25 07:37:30,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:37:30,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:37:30,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:37:30,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:37:30,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:37:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:37:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:37:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:37:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:37:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:37:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:37:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:37:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:37:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:37:30,930 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:37:30,930 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:37:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:37:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:37:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:37:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:37:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:37:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:37:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:37:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 07:37:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:37:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:37:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:37:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:37:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:37:30,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:37:30,940 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:37:30,940 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:37:30,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:37:30,940 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:37:30,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:37:30,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:37:30,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:37:30,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:37:30,941 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:37:30,941 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:37:30,942 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:37:30,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:37:30,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:37:30,942 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:37:30,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:37:30,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:37:30,943 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:37:30,943 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:37:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:37:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:37:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:37:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:37:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:37:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:37:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:37:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:37:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:37:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:37:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:37:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:37:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:37:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:37:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:37:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:37:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:37:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:37:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:37:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:37:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:37:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:37:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:37:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:37:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:37:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:37:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:37:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:37:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:37:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:37:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:37:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:37:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:37:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:37:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:37:30,949 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:37:30,949 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:37:30,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 07:37:30,949 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:37:30,949 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:37:30,949 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:37:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:37:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:37:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:37:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:37:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:37:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:37:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:37:30,951 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:37:30,951 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:37:30,951 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:37:30,951 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:37:30,951 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:37:30,951 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:37:30,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:37:30,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:37:30,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:37:32,163 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:37:32,163 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:37:32,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:37:32 BoogieIcfgContainer [2020-09-25 07:37:32,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:37:32,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:37:32,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:37:32,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:37:32,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:37:29" (1/3) ... [2020-09-25 07:37:32,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f862e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:37:32, skipping insertion in model container [2020-09-25 07:37:32,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:37:30" (2/3) ... [2020-09-25 07:37:32,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f862e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:37:32, skipping insertion in model container [2020-09-25 07:37:32,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:37:32" (3/3) ... [2020-09-25 07:37:32,182 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2020-09-25 07:37:32,195 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:37:32,208 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:37:32,233 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:37:32,272 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:37:32,272 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:37:32,272 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:37:32,273 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:37:32,273 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:37:32,273 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:37:32,273 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:37:32,273 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:37:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states. [2020-09-25 07:37:32,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:37:32,328 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:32,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:37:32,331 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:32,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:32,341 INFO L82 PathProgramCache]: Analyzing trace with hash 678471582, now seen corresponding path program 1 times [2020-09-25 07:37:32,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:32,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141616293] [2020-09-25 07:37:32,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:32,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:33,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:34,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:35,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:37,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:37,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:37:37,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:37:37,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 07:37:37,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:37,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:37,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:37:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:37,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 07:37:38,234 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:38,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:38,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:38,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:38,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:38,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:38,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 07:37:38,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:38,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:38,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:38,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:38,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:38,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:38,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:38,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:38,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:38,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:38,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:38,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:38,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:38,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:38,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:38,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:38,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:38,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:38,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:38,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:38,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:38,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:38,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:38,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:38,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:38,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:38,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:38,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:38,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:38,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:38,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:38,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:38,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:38,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:38,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:38,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:37:38,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:38,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:38,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:38,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:38,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:38,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:38,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:38,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:38,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:38,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:38,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:38,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:38,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:38,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:38,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:38,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:38,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:38,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:37:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:38,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:38,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:38,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:38,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:38,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:38,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:38,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:38,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:38,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:38,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:38,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:38,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:37:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:38,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:38,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:38,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:38,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:38,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:38,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:38,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:38,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:38,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:38,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:38,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:38,500 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 07:37:38,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141616293] [2020-09-25 07:37:38,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:38,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:37:38,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796726825] [2020-09-25 07:37:38,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:37:38,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:38,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:37:38,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:37:38,532 INFO L87 Difference]: Start difference. First operand 352 states. Second operand 3 states. [2020-09-25 07:37:40,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:40,304 INFO L93 Difference]: Finished difference Result 575 states and 684 transitions. [2020-09-25 07:37:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:37:40,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:37:40,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:40,327 INFO L225 Difference]: With dead ends: 575 [2020-09-25 07:37:40,327 INFO L226 Difference]: Without dead ends: 348 [2020-09-25 07:37:40,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:37:40,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-25 07:37:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 301. [2020-09-25 07:37:40,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-25 07:37:40,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 331 transitions. [2020-09-25 07:37:40,456 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 331 transitions. Word has length 142 [2020-09-25 07:37:40,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:40,457 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 331 transitions. [2020-09-25 07:37:40,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:37:40,458 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 331 transitions. [2020-09-25 07:37:40,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:37:40,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:40,463 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] [2020-09-25 07:37:40,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:37:40,464 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:40,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:40,464 INFO L82 PathProgramCache]: Analyzing trace with hash 999725193, now seen corresponding path program 1 times [2020-09-25 07:37:40,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:40,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979577074] [2020-09-25 07:37:40,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:40,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:40,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:42,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:42,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:43,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:45,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:45,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:37:45,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:37:45,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:37:45,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:45,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:37:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:37:45,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:45,881 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:45,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:45,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:45,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:45,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:45,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:45,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 07:37:45,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:45,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:45,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:45,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:45,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:46,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:46,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:46,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:46,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:46,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:46,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:46,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:46,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:46,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:46,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:46,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:46,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:46,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:46,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:46,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:46,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:46,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:46,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:46,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:46,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:46,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:46,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:46,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:46,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:46,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:46,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:46,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:46,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:46,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:46,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:46,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:46,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:46,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:46,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:46,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:46,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:46,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:46,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:37:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:46,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:46,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:46,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:46,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:46,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:46,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:46,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:46,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:46,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:46,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:46,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:46,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:37:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:46,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:46,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:46,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:46,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:46,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:46,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:46,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:46,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:46,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:46,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:46,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:46,083 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 07:37:46,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979577074] [2020-09-25 07:37:46,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:46,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:37:46,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246121511] [2020-09-25 07:37:46,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:37:46,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:46,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:37:46,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:37:46,087 INFO L87 Difference]: Start difference. First operand 301 states and 331 transitions. Second operand 4 states. [2020-09-25 07:37:46,707 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:48,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:48,053 INFO L93 Difference]: Finished difference Result 486 states and 551 transitions. [2020-09-25 07:37:48,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:37:48,057 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:37:48,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:48,062 INFO L225 Difference]: With dead ends: 486 [2020-09-25 07:37:48,063 INFO L226 Difference]: Without dead ends: 331 [2020-09-25 07:37:48,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:37:48,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-09-25 07:37:48,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 291. [2020-09-25 07:37:48,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-09-25 07:37:48,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 318 transitions. [2020-09-25 07:37:48,116 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 318 transitions. Word has length 143 [2020-09-25 07:37:48,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:48,117 INFO L479 AbstractCegarLoop]: Abstraction has 291 states and 318 transitions. [2020-09-25 07:37:48,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:37:48,117 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 318 transitions. [2020-09-25 07:37:48,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 07:37:48,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:48,119 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] [2020-09-25 07:37:48,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:37:48,120 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:48,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:48,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1892651662, now seen corresponding path program 1 times [2020-09-25 07:37:48,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:48,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [650627871] [2020-09-25 07:37:48,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:48,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:48,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:49,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:53,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:53,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:37:53,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:37:53,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 07:37:53,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:53,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:37:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 07:37:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 07:37:53,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:53,516 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:53,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:53,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:53,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:53,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:53,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 07:37:53,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:53,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 07:37:53,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:53,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:53,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:53,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:53,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:53,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:53,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:53,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:53,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:53,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:53,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:53,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:53,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:53,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:53,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:53,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:37:53,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:53,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:53,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:53,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:53,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:53,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:53,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:53,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:37:53,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:53,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:53,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:53,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:53,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:37:53,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:53,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:53,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:53,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:53,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:53,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:53,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:37:53,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:53,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:53,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:53,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:53,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:53,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:53,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:37:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:53,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:53,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:53,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:53,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:53,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:53,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:53,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:53,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:53,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:53,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:53,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:53,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 07:37:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:53,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:53,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:53,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:53,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:53,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:53,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:53,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:53,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:53,974 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 07:37:53,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [650627871] [2020-09-25 07:37:53,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:53,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:37:53,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675284844] [2020-09-25 07:37:53,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:37:53,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:53,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:37:53,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:37:53,985 INFO L87 Difference]: Start difference. First operand 291 states and 318 transitions. Second operand 5 states. [2020-09-25 07:37:54,551 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:37:55,279 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:57,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:57,505 INFO L93 Difference]: Finished difference Result 792 states and 915 transitions. [2020-09-25 07:37:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:37:57,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-09-25 07:37:57,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:57,512 INFO L225 Difference]: With dead ends: 792 [2020-09-25 07:37:57,512 INFO L226 Difference]: Without dead ends: 611 [2020-09-25 07:37:57,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:37:57,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2020-09-25 07:37:57,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 536. [2020-09-25 07:37:57,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-09-25 07:37:57,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 604 transitions. [2020-09-25 07:37:57,618 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 604 transitions. Word has length 152 [2020-09-25 07:37:57,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:57,619 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 604 transitions. [2020-09-25 07:37:57,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:37:57,619 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 604 transitions. [2020-09-25 07:37:57,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:37:57,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:57,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:37:57,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:37:57,623 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:57,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:57,623 INFO L82 PathProgramCache]: Analyzing trace with hash -200869376, now seen corresponding path program 1 times [2020-09-25 07:37:57,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:57,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713132851] [2020-09-25 07:37:57,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:57,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:58,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:58,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:59,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:02,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:02,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 07:38:02,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:38:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 07:38:02,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:02,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:38:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 07:38:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:38:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:38:03,101 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:38:03,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:03,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:03,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:03,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:38:03,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:03,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 07:38:03,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:03,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:03,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:03,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:03,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:03,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:03,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:38:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:03,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:03,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:03,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:03,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:03,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:03,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:03,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:03,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:03,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:03,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:03,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:03,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:38:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:03,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:03,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:03,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:03,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:03,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:03,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:03,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:03,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:03,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:38:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:03,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:03,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:03,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:03,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:03,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:38:03,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:03,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:03,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:03,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:38:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:03,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:03,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:03,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:03,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:03,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:03,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:03,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:03,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:03,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:03,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:03,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:03,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 07:38:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:03,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:03,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:03,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:38:03,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:03,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:38:03,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:03,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:03,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:03,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:38:03,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:03,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:38:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:03,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:03,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:03,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:03,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:03,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:38:03,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:03,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:38:03,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:03,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:38:03,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:03,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:38:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:03,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:03,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:03,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:03,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:03,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:38:03,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:03,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:38:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:38:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:03,472 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 07:38:03,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713132851] [2020-09-25 07:38:03,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:38:03,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:38:03,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284435832] [2020-09-25 07:38:03,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:38:03,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:38:03,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:38:03,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:38:03,477 INFO L87 Difference]: Start difference. First operand 536 states and 604 transitions. Second operand 9 states. [2020-09-25 07:38:04,002 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:38:05,384 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:38:05,716 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:38:06,077 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:06,448 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:38:06,774 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:38:07,644 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:38:07,948 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:38:08,331 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:38:09,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:38:09,427 INFO L93 Difference]: Finished difference Result 1252 states and 1493 transitions. [2020-09-25 07:38:09,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:38:09,428 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 07:38:09,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:38:09,440 INFO L225 Difference]: With dead ends: 1252 [2020-09-25 07:38:09,440 INFO L226 Difference]: Without dead ends: 826 [2020-09-25 07:38:09,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:38:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-09-25 07:38:09,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 745. [2020-09-25 07:38:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-09-25 07:38:09,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 844 transitions. [2020-09-25 07:38:09,595 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 844 transitions. Word has length 161 [2020-09-25 07:38:09,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:38:09,596 INFO L479 AbstractCegarLoop]: Abstraction has 745 states and 844 transitions. [2020-09-25 07:38:09,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:38:09,596 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 844 transitions. [2020-09-25 07:38:09,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 07:38:09,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:38:09,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:38:09,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:38:09,602 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:38:09,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:38:09,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1008542969, now seen corresponding path program 1 times [2020-09-25 07:38:09,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:38:09,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939123387] [2020-09-25 07:38:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:38:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:09,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:10,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:14,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:14,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-25 07:38:14,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:38:14,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 07:38:14,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:14,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:38:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-25 07:38:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:38:14,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:38:14,974 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:38:14,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:38:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:14,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:38:15,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 07:38:15,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:15,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:38:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:15,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:38:15,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:15,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:15,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:15,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:38:15,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:38:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:15,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:15,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:15,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:38:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:15,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:38:15,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:38:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:38:15,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:15,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:15,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:15,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:38:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:38:15,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 07:38:15,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:38:15,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 07:38:15,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:38:15,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:38:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 07:38:15,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 07:38:15,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:38:15,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 07:38:15,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:38:15,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:38:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:38:15,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 07:38:15,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:38:15,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:38:15,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:38:15,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:38:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:38:15,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 07:38:15,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:38:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:38:15,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:38:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:38:15,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:38:15,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:15,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:15,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:15,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:38:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 07:38:15,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:38:15,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:15,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 07:38:15,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:15,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:38:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:38:15,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:15,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:15,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:38:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:15,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:15,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:15,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:15,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:15,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 07:38:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:38:15,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:38:15,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:38:15,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:38:15,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 07:38:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:15,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:15,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:15,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:15,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:15,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 07:38:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:38:15,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:38:15,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:38:15,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:38:15,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:38:15,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:38:15,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:38:15,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:38:15,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:38:15,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:38:15,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:38:15,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:38:15,809 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 07:38:15,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [939123387] [2020-09-25 07:38:15,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:38:15,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:38:15,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588297747] [2020-09-25 07:38:15,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:38:15,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:38:15,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:38:15,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:38:15,811 INFO L87 Difference]: Start difference. First operand 745 states and 844 transitions. Second operand 9 states.