/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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:57:41,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:57:41,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:57:41,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:57:41,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:57:41,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:57:41,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:57:41,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:57:41,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:57:41,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:57:41,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:57:41,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:57:41,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:57:41,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:57:41,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:57:41,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:57:41,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:57:41,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:57:41,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:57:41,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:57:41,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:57:41,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:57:41,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:57:41,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:57:41,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:57:41,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:57:41,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:57:41,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:57:41,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:57:41,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:57:41,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:57:41,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:57:41,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:57:41,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:57:41,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:57:41,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:57:41,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:57:41,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:57:41,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:57:41,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:57:41,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:57:41,890 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 02:57:41,941 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:57:41,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:57:41,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:57:41,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:57:41,944 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:57:41,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:57:41,945 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:57:41,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:57:41,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:57:41,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:57:41,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:57:41,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:57:41,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:57:41,947 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:57:41,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:57:41,948 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:57:41,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:57:41,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:57:41,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:57:41,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:57:41,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:57:41,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:57:41,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:57:41,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:57:41,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:57:41,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:57:41,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:57:41,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:57:41,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:57:41,950 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:57:42,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:57:42,447 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:57:42,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:57:42,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:57:42,458 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:57:42,459 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2020-09-25 02:57:42,555 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a27449150/4ba77a5d8bd04f26b5c6dabb49cd099f/FLAG8f3bf856f [2020-09-25 02:57:43,125 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:57:43,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2020-09-25 02:57:43,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a27449150/4ba77a5d8bd04f26b5c6dabb49cd099f/FLAG8f3bf856f [2020-09-25 02:57:43,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a27449150/4ba77a5d8bd04f26b5c6dabb49cd099f [2020-09-25 02:57:43,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:57:43,437 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:57:43,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:57:43,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:57:43,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:57:43,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:57:43" (1/1) ... [2020-09-25 02:57:43,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28d6e00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:43, skipping insertion in model container [2020-09-25 02:57:43,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:57:43" (1/1) ... [2020-09-25 02:57:43,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:57:43,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:57:43,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:57:43,920 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:57:44,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:57:44,173 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:57:44,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:44 WrapperNode [2020-09-25 02:57:44,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:57:44,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:57:44,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:57:44,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:57:44,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:44" (1/1) ... [2020-09-25 02:57:44,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:44" (1/1) ... [2020-09-25 02:57:44,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:44" (1/1) ... [2020-09-25 02:57:44,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:44" (1/1) ... [2020-09-25 02:57:44,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:44" (1/1) ... [2020-09-25 02:57:44,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:44" (1/1) ... [2020-09-25 02:57:44,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:44" (1/1) ... [2020-09-25 02:57:44,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:57:44,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:57:44,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:57:44,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:57:44,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:44" (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 02:57:44,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:57:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:57:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:57:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:57:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:57:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:57:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:57:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:57:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:57:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:57:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:57:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:57:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:57:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:57:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:57:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:57:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:57:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:57:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:57:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:57:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:57:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:57:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:57:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:57:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 02:57:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:57:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:57:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:57:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:57:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:57:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:57:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:57:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:57:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 02:57:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:57:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 02:57:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:57:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:57:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:57:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:57:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:57:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:57:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 02:57:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:57:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:57:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:57:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:57:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:57:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:57:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:57:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:57:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:57:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:57:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:57:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:57:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:57:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:57:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:57:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:57:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:57:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:57:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:57:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:57:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:57:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:57:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:57:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:57:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:57:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:57:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:57:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:57:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:57:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:57:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:57:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:57:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:57:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:57:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:57:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:57:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:57:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:57:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:57:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:57:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:57:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:57:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:57:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 02:57:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:57:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:57:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:57:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:57:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:57:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:57:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:57:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:57:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 02:57:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 02:57:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:57:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 02:57:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:57:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:57:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:57:45,560 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:57:45,560 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:57:45,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:57:45 BoogieIcfgContainer [2020-09-25 02:57:45,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:57:45,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:57:45,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:57:45,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:57:45,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:57:43" (1/3) ... [2020-09-25 02:57:45,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bee3e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:57:45, skipping insertion in model container [2020-09-25 02:57:45,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:44" (2/3) ... [2020-09-25 02:57:45,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bee3e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:57:45, skipping insertion in model container [2020-09-25 02:57:45,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:57:45" (3/3) ... [2020-09-25 02:57:45,586 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product62.cil.c [2020-09-25 02:57:45,598 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:57:45,613 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:57:45,635 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:57:45,667 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:57:45,667 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:57:45,667 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:57:45,668 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:57:45,668 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:57:45,668 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:57:45,668 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:57:45,668 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:57:45,699 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-09-25 02:57:45,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 02:57:45,719 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:45,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:45,721 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:45,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:45,728 INFO L82 PathProgramCache]: Analyzing trace with hash -722874537, now seen corresponding path program 1 times [2020-09-25 02:57:45,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:45,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446422477] [2020-09-25 02:57:45,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:46,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:46,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:48,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:49,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:49,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:51,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:51,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 02:57:51,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:57:51,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 02:57:51,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:57:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:57:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 02:57:51,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:57:51,616 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:51,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:51,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:51,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:51,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:51,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:51,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 02:57:51,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:51,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:51,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:51,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:57:51,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:52,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:52,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:52,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:52,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:52,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:52,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:52,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:52,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:52,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:52,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:57:52,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:52,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:52,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:52,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:57:52,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:52,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:57:52,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:52,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:52,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:52,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:52,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:52,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:52,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:57:52,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:52,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 02:57:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:52,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:52,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:52,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:52,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:52,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:52,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:52,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:52,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:52,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:52,324 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 02:57:52,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446422477] [2020-09-25 02:57:52,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:57:52,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:57:52,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576849342] [2020-09-25 02:57:52,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:57:52,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:52,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:57:52,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:57:52,375 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 9 states. [2020-09-25 02:57:53,031 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:54,298 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:54,710 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 02:57:55,053 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:55,456 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:57:55,845 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:56,830 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:57:57,221 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:57,836 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:59,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:59,724 INFO L93 Difference]: Finished difference Result 783 states and 944 transitions. [2020-09-25 02:57:59,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 02:57:59,726 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 02:57:59,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:59,758 INFO L225 Difference]: With dead ends: 783 [2020-09-25 02:57:59,758 INFO L226 Difference]: Without dead ends: 542 [2020-09-25 02:57:59,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 02:57:59,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-09-25 02:57:59,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 463. [2020-09-25 02:57:59,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-25 02:57:59,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 518 transitions. [2020-09-25 02:57:59,932 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 518 transitions. Word has length 148 [2020-09-25 02:57:59,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:59,933 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 518 transitions. [2020-09-25 02:57:59,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:57:59,933 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 518 transitions. [2020-09-25 02:57:59,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 02:57:59,939 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:59,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:59,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:57:59,940 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:59,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:59,941 INFO L82 PathProgramCache]: Analyzing trace with hash -2064795740, now seen corresponding path program 1 times [2020-09-25 02:57:59,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:59,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838555522] [2020-09-25 02:57:59,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:00,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:00,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:00,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:01,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:05,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:05,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 02:58:05,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:58:05,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 02:58:05,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:58:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 02:58:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 02:58:05,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:05,348 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:58:05,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:05,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:05,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:05,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:58:05,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:05,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 02:58:05,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:05,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:05,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:05,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:58:05,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:05,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:58:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:05,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:05,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:05,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:05,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:05,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:05,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:05,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:05,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:05,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:05,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:05,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:58:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:05,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:05,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:05,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:05,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:05,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:05,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:05,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:05,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:05,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:05,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:58:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:05,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:05,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:05,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:05,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:05,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:05,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:05,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:05,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:58:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:05,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:05,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:05,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:05,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:05,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:05,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:05,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:05,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:05,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:05,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:05,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:58:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:05,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:05,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:05,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:05,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:05,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:05,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:05,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:05,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:05,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:58:05,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:05,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:58:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:05,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:05,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:05,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:05,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:05,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:58:05,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:05,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:05,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:05,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:58:05,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:58:05,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 02:58:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:05,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:05,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:05,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:05,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:05,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:58:05,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:05,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:05,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:05,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:58:05,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:05,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 02:58:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:05,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:05,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:05,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:05,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:05,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:05,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:05,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:05,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:05,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:05,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:05,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 02:58:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:05,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:05,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:05,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:05,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:05,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:05,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:05,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:05,885 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 02:58:05,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838555522] [2020-09-25 02:58:05,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:05,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 02:58:05,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624786383] [2020-09-25 02:58:05,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 02:58:05,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:05,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 02:58:05,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:58:05,895 INFO L87 Difference]: Start difference. First operand 463 states and 518 transitions. Second operand 11 states. [2020-09-25 02:58:06,403 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:58:07,714 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:08,048 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:08,435 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:08,761 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:09,073 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:10,836 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:58:11,145 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:11,497 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:12,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:12,538 INFO L93 Difference]: Finished difference Result 1259 states and 1571 transitions. [2020-09-25 02:58:12,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 02:58:12,539 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2020-09-25 02:58:12,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:12,550 INFO L225 Difference]: With dead ends: 1259 [2020-09-25 02:58:12,551 INFO L226 Difference]: Without dead ends: 911 [2020-09-25 02:58:12,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 02:58:12,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-09-25 02:58:12,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 660. [2020-09-25 02:58:12,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2020-09-25 02:58:12,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 747 transitions. [2020-09-25 02:58:12,671 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 747 transitions. Word has length 167 [2020-09-25 02:58:12,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:12,672 INFO L479 AbstractCegarLoop]: Abstraction has 660 states and 747 transitions. [2020-09-25 02:58:12,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 02:58:12,672 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 747 transitions. [2020-09-25 02:58:12,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-09-25 02:58:12,678 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:12,679 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:12,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:58:12,680 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:12,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:12,680 INFO L82 PathProgramCache]: Analyzing trace with hash 250132912, now seen corresponding path program 1 times [2020-09-25 02:58:12,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:12,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [205705205] [2020-09-25 02:58:12,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:12,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:13,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:13,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:13,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:13,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:15,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:17,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:17,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-09-25 02:58:17,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 02:58:17,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 02:58:17,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:58:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 02:58:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:58:17,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:18,118 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:58:18,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:58:18,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 02:58:18,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:18,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:18,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:58:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:18,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:18,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:18,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:18,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:18,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:58:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:18,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:18,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:18,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:18,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:58:18,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:58:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:18,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:18,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:18,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:18,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:18,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:58:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:18,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:18,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:18,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:18,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:18,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:58:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:18,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:18,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:18,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:18,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:58:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:18,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:18,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:18,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:58:18,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:18,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 02:58:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:18,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:18,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:18,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:58:18,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:18,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 02:58:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 02:58:18,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:58:18,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:58:18,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:18,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 02:58:18,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:18,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 02:58:18,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:18,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:18,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:18,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:18,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:18,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:18,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:18,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:18,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:18,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 02:58:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 02:58:18,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:58:18,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:58:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 02:58:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:58:18,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:18,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 02:58:18,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 02:58:18,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:58:18,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:58:18,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:18,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:18,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:58:18,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:58:18,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:18,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:58:18,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:58:18,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 02:58:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:58:18,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:58:18,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 02:58:18,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:58:18,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 02:58:18,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:58:18,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:18,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:18,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:18,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 02:58:18,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:18,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 02:58:18,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:18,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:58:18,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:58:18,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:58:18,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:18,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:18,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:19,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 02:58:19,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:19,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 02:58:19,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:19,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:58:19,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:58:19,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:58:19,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:19,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:19,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:19,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:58:19,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:19,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 02:58:19,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:58:19,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:19,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:58:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:19,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:19,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:58:19,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:19,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:58:19,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:19,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:19,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:19,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:19,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:58:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:19,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:19,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 02:58:19,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:19,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:58:19,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:19,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 02:58:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:19,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:19,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:58:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:19,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:19,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 02:58:19,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:19,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:19,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:19,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:19,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:19,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:19,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:19,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:58:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:19,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:19,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:19,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:19,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:19,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:19,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:19,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:19,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:19,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:19,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 02:58:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:19,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:19,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:19,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:19,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:19,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:19,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:19,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:19,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:19,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:19,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-09-25 02:58:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:19,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:19,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:19,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:19,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:19,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:19,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:19,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:19,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:19,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:19,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-09-25 02:58:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:19,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:19,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:19,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:19,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:19,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:19,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:19,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:19,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 02:58:19,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [205705205] [2020-09-25 02:58:19,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:58:19,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 02:58:19,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546837384] [2020-09-25 02:58:19,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 02:58:19,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:19,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 02:58:19,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2020-09-25 02:58:19,354 INFO L87 Difference]: Start difference. First operand 660 states and 747 transitions. Second operand 20 states. [2020-09-25 02:58:19,965 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:58:21,244 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:58:21,821 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:22,157 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:22,545 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:22,915 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:23,231 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:23,564 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:23,886 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:24,291 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:24,697 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:25,045 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:25,728 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:26,081 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:26,438 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 02:58:26,813 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:27,226 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:27,562 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:27,887 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:58:28,268 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:28,604 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:58:29,125 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:29,534 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:58:29,879 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192