/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=BIGGEST --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_spec3_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:12:41,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:12:41,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:12:41,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:12:41,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:12:41,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:12:41,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:12:41,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:12:41,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:12:41,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:12:41,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:12:41,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:12:41,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:12:41,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:12:41,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:12:41,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:12:41,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:12:41,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:12:41,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:12:41,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:12:41,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:12:41,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:12:41,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:12:41,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:12:41,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:12:41,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:12:41,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:12:41,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:12:41,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:12:41,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:12:41,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:12:41,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:12:41,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:12:41,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:12:41,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:12:41,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:12:41,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:12:41,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:12:41,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:12:41,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:12:41,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:12:41,443 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 [2020-09-24 20:12:41,470 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:12:41,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:12:41,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:12:41,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:12:41,472 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:12:41,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:12:41,472 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:12:41,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:12:41,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:12:41,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:12:41,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:12:41,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:12:41,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:12:41,474 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:12:41,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:12:41,474 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:12:41,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:12:41,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:12:41,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:12:41,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:12:41,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:12:41,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:12:41,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:12:41,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:12:41,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:12:41,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:12:41,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:12:41,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:12:41,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:12:41,477 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:12:41,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:12:41,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:12:41,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:12:41,971 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:12:41,972 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:12:41,973 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-09-24 20:12:42,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1343313ba/76eb852ab367447bbfdcd1bbf14254df/FLAG3bb664951 [2020-09-24 20:12:42,681 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:12:42,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-09-24 20:12:42,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1343313ba/76eb852ab367447bbfdcd1bbf14254df/FLAG3bb664951 [2020-09-24 20:12:42,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1343313ba/76eb852ab367447bbfdcd1bbf14254df [2020-09-24 20:12:42,971 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:12:42,976 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:12:42,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:12:42,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:12:42,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:12:42,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:42" (1/1) ... [2020-09-24 20:12:42,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:42, skipping insertion in model container [2020-09-24 20:12:42,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:42" (1/1) ... [2020-09-24 20:12:43,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:12:43,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:12:43,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:12:43,635 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:12:43,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:12:43,752 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:12:43,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43 WrapperNode [2020-09-24 20:12:43,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:12:43,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:12:43,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:12:43,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:12:43,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ... [2020-09-24 20:12:43,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ... [2020-09-24 20:12:43,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ... [2020-09-24 20:12:43,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ... [2020-09-24 20:12:43,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ... [2020-09-24 20:12:43,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ... [2020-09-24 20:12:43,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ... [2020-09-24 20:12:43,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:12:43,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:12:43,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:12:43,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:12:43,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (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 [2020-09-24 20:12:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:12:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:12:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:12:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 20:12:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:12:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:12:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:12:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:12:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:12:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:12:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:12:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:12:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:12:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:12:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:12:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:12:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:12:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:12:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:12:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:12:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:12:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 20:12:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:12:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:12:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:12:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:12:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:12:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:12:43,946 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:12:43,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:12:43,946 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:12:43,946 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:12:43,946 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:12:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:12:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:12:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:12:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:12:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:12:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:12:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:12:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:12:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:12:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:12:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 20:12:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:12:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:12:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:12:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:12:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:12:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:12:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:12:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:12:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:12:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:12:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:12:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:12:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:12:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:12:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:12:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:12:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:12:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:12:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:12:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:12:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:12:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:12:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:12:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:12:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:12:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:12:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:12:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:12:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:12:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:12:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:12:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:12:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:12:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:12:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:12:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:12:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:12:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 20:12:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:12:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:12:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:12:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:12:45,134 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:12:45,134 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:12:45,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:45 BoogieIcfgContainer [2020-09-24 20:12:45,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:12:45,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:12:45,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:12:45,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:12:45,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:12:42" (1/3) ... [2020-09-24 20:12:45,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a640677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:45, skipping insertion in model container [2020-09-24 20:12:45,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (2/3) ... [2020-09-24 20:12:45,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a640677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:45, skipping insertion in model container [2020-09-24 20:12:45,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:45" (3/3) ... [2020-09-24 20:12:45,151 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-09-24 20:12:45,163 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:12:45,175 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:12:45,198 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:12:45,233 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:12:45,233 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:12:45,233 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:12:45,233 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:12:45,233 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:12:45,234 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:12:45,234 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:12:45,234 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:12:45,264 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2020-09-24 20:12:45,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 20:12:45,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:45,283 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] [2020-09-24 20:12:45,284 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:45,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:45,292 INFO L82 PathProgramCache]: Analyzing trace with hash 348388081, now seen corresponding path program 1 times [2020-09-24 20:12:45,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:45,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977015051] [2020-09-24 20:12:45,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:45,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:46,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:47,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:50,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:50,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 20:12:50,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:12:50,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 20:12:50,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:50,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:12:50,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:12:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 20:12:50,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:12:51,292 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:12:51,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:12:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:12:51,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-24 20:12:51,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:51,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:12:51,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:51,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:12:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:51,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:51,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:51,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:51,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:51,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:12:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:51,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:51,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:51,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:51,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:12:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:51,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:12:51,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:51,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:51,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:51,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:12:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:51,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:51,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:51,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:51,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:12:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:51,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:12:51,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:51,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:51,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:51,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 20:12:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:51,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:12:51,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:12:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:51,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:51,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:51,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 20:12:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:51,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:51,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:51,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:51,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:51,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:51,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:51,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:51,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:51,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:51,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:51,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:12:51,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977015051] [2020-09-24 20:12:51,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:12:51,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:12:51,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821486651] [2020-09-24 20:12:51,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:12:51,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:12:51,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:12:51,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:12:51,909 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 8 states. [2020-09-24 20:12:52,552 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:12:53,993 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:12:54,357 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:54,709 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:12:55,050 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:12:55,377 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:55,675 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:12:56,000 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:12:56,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:12:56,870 INFO L93 Difference]: Finished difference Result 483 states and 591 transitions. [2020-09-24 20:12:56,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:12:56,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-24 20:12:56,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:12:56,894 INFO L225 Difference]: With dead ends: 483 [2020-09-24 20:12:56,894 INFO L226 Difference]: Without dead ends: 335 [2020-09-24 20:12:56,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:12:56,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-24 20:12:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 300. [2020-09-24 20:12:57,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-09-24 20:12:57,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 337 transitions. [2020-09-24 20:12:57,024 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 337 transitions. Word has length 153 [2020-09-24 20:12:57,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:12:57,025 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 337 transitions. [2020-09-24 20:12:57,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:12:57,026 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 337 transitions. [2020-09-24 20:12:57,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-24 20:12:57,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:57,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:12:57,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:12:57,033 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:57,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:57,034 INFO L82 PathProgramCache]: Analyzing trace with hash -212549043, now seen corresponding path program 1 times [2020-09-24 20:12:57,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:57,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726838919] [2020-09-24 20:12:57,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:57,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:58,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:58,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 20:12:58,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:58,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1246 [2020-09-24 20:12:58,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:58,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:12:58,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:12:58,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:12:58,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:58,687 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:12:58,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:12:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:58,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:59,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:59,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:12:59,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:59,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-24 20:12:59,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:59,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:59,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:12:59,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:59,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:12:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:59,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:59,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:59,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:59,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:59,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:59,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:59,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:59,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:59,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:59,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:12:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:59,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:59,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:59,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:59,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:59,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:59,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:59,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:59,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:59,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:59,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:59,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:12:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:59,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:59,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:59,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:59,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:59,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:12:59,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:59,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:59,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:59,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:59,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:59,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:12:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:59,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:59,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:59,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:59,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:59,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:59,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:59,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:59,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:59,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:59,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:59,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:12:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:59,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:59,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:59,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:12:59,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:59,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:12:59,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:59,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:59,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:59,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:12:59,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:59,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:12:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:59,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:59,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:59,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:59,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:59,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:59,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:59,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:59,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:59,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:59,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:59,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-24 20:12:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:59,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:59,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:59,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:59,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:59,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:59,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:59,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:59,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:59,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:59,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:59,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 20:12:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:59,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:59,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:59,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:59,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:59,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:59,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:59,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:59,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:59,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:59,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:59,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:12:59,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726838919] [2020-09-24 20:12:59,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:12:59,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:12:59,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192599278] [2020-09-24 20:12:59,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:12:59,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:12:59,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:12:59,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:12:59,217 INFO L87 Difference]: Start difference. First operand 300 states and 337 transitions. Second operand 6 states. [2020-09-24 20:12:59,715 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:13:00,502 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:13:02,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:13:02,466 INFO L93 Difference]: Finished difference Result 902 states and 1113 transitions. [2020-09-24 20:13:02,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:13:02,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-24 20:13:02,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:13:02,476 INFO L225 Difference]: With dead ends: 902 [2020-09-24 20:13:02,476 INFO L226 Difference]: Without dead ends: 712 [2020-09-24 20:13:02,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:13:02,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2020-09-24 20:13:02,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 631. [2020-09-24 20:13:02,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2020-09-24 20:13:02,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 745 transitions. [2020-09-24 20:13:02,603 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 745 transitions. Word has length 168 [2020-09-24 20:13:02,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:13:02,604 INFO L479 AbstractCegarLoop]: Abstraction has 631 states and 745 transitions. [2020-09-24 20:13:02,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:13:02,604 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 745 transitions. [2020-09-24 20:13:02,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 20:13:02,609 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:13:02,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:13:02,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:13:02,609 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:13:02,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:13:02,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1089668054, now seen corresponding path program 1 times [2020-09-24 20:13:02,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:13:02,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364365752] [2020-09-24 20:13:02,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:13:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:02,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:02,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:04,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:05,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:07,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:07,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 20:13:07,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:13:07,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 20:13:07,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:07,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:13:07,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:13:07,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 20:13:07,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:07,968 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:13:07,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:13:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:08,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:08,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:08,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:13:08,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:08,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-24 20:13:08,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:08,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:08,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:08,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:13:08,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:08,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:13:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:08,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:08,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:08,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:13:08,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:08,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:13:08,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:08,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:08,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:13:08,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:08,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:13:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:08,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:08,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:08,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:13:08,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:08,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:13:08,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:08,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:08,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:08,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:13:08,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:08,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:13:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:08,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:08,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:08,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:13:08,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:08,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:13:08,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:08,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:08,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:08,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:13:08,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:08,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:13:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:08,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:08,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:08,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:13:08,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:08,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:13:08,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:08,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:08,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:08,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:13:08,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:08,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 20:13:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:08,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:08,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:08,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:13:08,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:08,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:13:08,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:13:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:13:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:13:08,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:08,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 20:13:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:08,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:08,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:08,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:13:08,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:08,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:13:08,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:13:08,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:13:08,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:13:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:08,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:08,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:08,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:13:08,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:08,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:13:08,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:08,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:08,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:08,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:13:08,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:08,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 20:13:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:08,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:08,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:08,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:13:08,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:08,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:13:08,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:08,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:13:08,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:08,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:13:08,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:08,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 20:13:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:08,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:08,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:08,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:13:08,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:08,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:13:08,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:08,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:13:08,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:13:08,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:13:08,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:08,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:13:08,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364365752] [2020-09-24 20:13:08,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:13:08,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 20:13:08,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792737784] [2020-09-24 20:13:08,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:13:08,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:13:08,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:13:08,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:13:08,580 INFO L87 Difference]: Start difference. First operand 631 states and 745 transitions. Second operand 12 states. [2020-09-24 20:13:09,028 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:13:09,993 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:13:10,933 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 20:13:11,852 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188 [2020-09-24 20:13:12,585 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-24 20:13:12,969 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:13:13,376 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:13:13,697 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:13:14,076 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 20:13:14,401 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:13:14,840 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:13:15,206 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:13:15,556 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:13:15,955 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:13:16,383 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 20:13:17,143 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 197 [2020-09-24 20:13:17,906 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-09-24 20:13:18,549 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 20:13:18,862 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:13:19,578 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 196 [2020-09-24 20:13:20,170 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-09-24 20:13:20,855 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 20:13:22,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:13:22,382 INFO L93 Difference]: Finished difference Result 1499 states and 1955 transitions. [2020-09-24 20:13:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 20:13:22,388 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 162 [2020-09-24 20:13:22,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:13:22,404 INFO L225 Difference]: With dead ends: 1499 [2020-09-24 20:13:22,405 INFO L226 Difference]: Without dead ends: 1200 [2020-09-24 20:13:22,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=320, Invalid=1086, Unknown=0, NotChecked=0, Total=1406 [2020-09-24 20:13:22,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2020-09-24 20:13:22,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1035. [2020-09-24 20:13:22,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-09-24 20:13:22,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1259 transitions. [2020-09-24 20:13:22,596 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1259 transitions. Word has length 162 [2020-09-24 20:13:22,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:13:22,597 INFO L479 AbstractCegarLoop]: Abstraction has 1035 states and 1259 transitions. [2020-09-24 20:13:22,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 20:13:22,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1259 transitions. [2020-09-24 20:13:22,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 20:13:22,602 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:13:22,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:13:22,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:13:22,603 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:13:22,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:13:22,604 INFO L82 PathProgramCache]: Analyzing trace with hash -597388692, now seen corresponding path program 1 times [2020-09-24 20:13:22,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:13:22,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78587857] [2020-09-24 20:13:22,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:13:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:22,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:22,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:25,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:27,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:27,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 20:13:27,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:13:27,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-24 20:13:27,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:13:27,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 20:13:27,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 20:13:27,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:13:28,095 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:13:28,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:13:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:28,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:28,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:28,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:13:28,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:28,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 20:13:28,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:28,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:13:28,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:28,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:13:28,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:13:28,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:13:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:28,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:28,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:28,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:13:28,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:28,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:13:28,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:28,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:13:28,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:28,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:13:28,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:13:28,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:13:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:28,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:28,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:28,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:13:28,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:28,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:13:28,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:28,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:13:28,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:28,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:13:28,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:28,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:13:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:28,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:28,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:28,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:13:28,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:28,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:13:28,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:28,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:13:28,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:28,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:13:28,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:28,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:13:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:28,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:28,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:28,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:13:28,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:28,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:13:28,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:28,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:13:28,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:28,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:13:28,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:28,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:13:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:28,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:28,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:28,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:13:28,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:28,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:13:28,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:13:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 20:13:28,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:28,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 20:13:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:28,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:28,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:28,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:13:28,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:28,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:13:28,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:13:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:13:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:13:28,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:28,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:13:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:28,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:28,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:28,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:13:28,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:28,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:13:28,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:13:28,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:28,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 20:13:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:28,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:28,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:28,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:13:28,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:28,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:13:28,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:28,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:28,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:28,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:13:28,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:28,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 20:13:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:28,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:28,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:28,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:13:28,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:28,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:13:28,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:28,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:13:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:13:28,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:28,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 20:13:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:28,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:28,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:28,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:13:28,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:28,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:13:28,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:28,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:13:28,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:13:28,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:13:28,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:28,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:13:28,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78587857] [2020-09-24 20:13:28,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:13:28,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 20:13:28,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004901046] [2020-09-24 20:13:28,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:13:28,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:13:28,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:13:28,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:13:28,487 INFO L87 Difference]: Start difference. First operand 1035 states and 1259 transitions. Second operand 11 states. [2020-09-24 20:13:29,089 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:13:30,100 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:13:30,930 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:13:31,286 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:13:31,605 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:13:31,913 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:13:32,243 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:13:32,648 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:13:32,989 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190