/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=NARROWEST --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_spec1_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:42:28,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:42:28,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:42:29,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:42:29,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:42:29,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:42:29,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:42:29,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:42:29,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:42:29,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:42:29,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:42:29,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:42:29,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:42:29,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:42:29,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:42:29,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:42:29,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:42:29,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:42:29,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:42:29,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:42:29,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:42:29,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:42:29,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:42:29,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:42:29,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:42:29,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:42:29,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:42:29,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:42:29,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:42:29,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:42:29,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:42:29,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:42:29,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:42:29,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:42:29,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:42:29,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:42:29,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:42:29,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:42:29,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:42:29,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:42:29,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:42:29,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:42:29,097 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:42:29,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:42:29,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:42:29,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:42:29,099 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:42:29,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:42:29,100 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:42:29,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:42:29,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:42:29,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:42:29,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:42:29,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:42:29,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:42:29,105 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:42:29,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:42:29,106 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:42:29,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:42:29,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:42:29,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:42:29,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:42:29,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:42:29,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:42:29,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:42:29,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:42:29,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:42:29,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:42:29,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:42:29,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:42:29,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:42:29,110 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:42:30,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:42:30,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:42:30,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:42:30,415 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:42:30,415 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:42:30,417 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product04.cil.c [2020-09-25 01:42:30,509 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c638d4127/5a871f0a5028479c9c723684ff5e4c6c/FLAGc260d6003 [2020-09-25 01:42:31,124 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:42:31,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product04.cil.c [2020-09-25 01:42:31,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c638d4127/5a871f0a5028479c9c723684ff5e4c6c/FLAGc260d6003 [2020-09-25 01:42:31,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c638d4127/5a871f0a5028479c9c723684ff5e4c6c [2020-09-25 01:42:31,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:42:31,442 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:42:31,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:42:31,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:42:31,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:42:31,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:42:31" (1/1) ... [2020-09-25 01:42:31,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae2094d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:31, skipping insertion in model container [2020-09-25 01:42:31,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:42:31" (1/1) ... [2020-09-25 01:42:31,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:42:31,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:42:32,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:42:32,034 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:42:32,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:42:32,200 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:42:32,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32 WrapperNode [2020-09-25 01:42:32,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:42:32,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:42:32,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:42:32,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:42:32,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:42:32,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:42:32,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:42:32,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:42:32,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:42:32,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:42:32,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:42:32,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:42:32,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:42:32,419 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:42:32,419 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:42:32,420 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:42:32,420 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:42:32,420 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:42:32,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:42:32,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:42:32,420 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:42:32,421 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:42:32,421 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:42:32,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:42:32,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:42:32,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:42:32,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:42:32,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:42:32,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:42:32,422 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:42:32,422 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:42:32,423 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:42:32,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:42:32,423 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:42:32,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:42:32,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:42:32,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:42:32,424 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:42:32,424 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:42:32,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:42:32,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:42:32,424 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:42:32,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:42:32,425 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:42:32,425 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:42:32,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:42:32,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:42:32,425 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:42:32,425 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:42:32,426 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:42:32,426 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:42:32,426 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:42:32,426 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:42:32,426 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:42:32,426 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:42:32,426 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:42:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:42:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:42:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:42:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:42:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:42:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:42:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:42:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:42:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:42:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:42:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:42:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:42:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:42:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:42:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:42:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:42:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:42:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:42:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:42:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:42:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:42:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:42:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:42:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:42:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:42:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:42:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:42:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:42:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:42:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:42:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:42:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:42:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:42:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:42:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:42:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:42:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:42:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:42:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:42:33,673 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:42:33,674 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:42:33,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:42:33 BoogieIcfgContainer [2020-09-25 01:42:33,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:42:33,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:42:33,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:42:33,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:42:33,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:42:31" (1/3) ... [2020-09-25 01:42:33,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eded39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:42:33, skipping insertion in model container [2020-09-25 01:42:33,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (2/3) ... [2020-09-25 01:42:33,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eded39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:42:33, skipping insertion in model container [2020-09-25 01:42:33,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:42:33" (3/3) ... [2020-09-25 01:42:33,693 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product04.cil.c [2020-09-25 01:42:33,706 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:42:33,719 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:42:33,739 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:42:33,770 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:42:33,771 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:42:33,771 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:42:33,771 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:42:33,771 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:42:33,771 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:42:33,771 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:42:33,772 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:42:33,802 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states. [2020-09-25 01:42:33,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:42:33,821 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:42:33,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:42:33,824 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:42:33,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:42:33,833 INFO L82 PathProgramCache]: Analyzing trace with hash 754184275, now seen corresponding path program 1 times [2020-09-25 01:42:33,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:42:33,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210305851] [2020-09-25 01:42:33,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:42:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:34,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:34,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:36,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:37,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:38,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:39,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:39,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:42:39,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:42:39,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 01:42:39,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:42:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:39,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:42:39,762 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:42:39,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:42:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:39,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:39,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:39,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:42:39,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:39,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 01:42:39,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:39,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:39,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:39,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:39,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:40,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:42:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:40,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:40,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 01:42:40,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:40,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:40,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:42:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:40,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:40,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:42:40,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:40,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:40,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:42:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:40,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:40,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:42:40,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:40,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:42:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:40,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:40,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:42:40,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:40,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:40,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:42:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:40,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:40,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:42:40,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:42:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:40,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:42:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:40,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:40,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:42:40,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:42:40,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:40,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:42:40,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210305851] [2020-09-25 01:42:40,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:42:40,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:42:40,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057181182] [2020-09-25 01:42:40,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:42:40,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:42:40,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:42:40,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:42:40,240 INFO L87 Difference]: Start difference. First operand 260 states. Second operand 3 states. [2020-09-25 01:42:41,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:42:41,669 INFO L93 Difference]: Finished difference Result 372 states and 447 transitions. [2020-09-25 01:42:41,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:42:41,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:42:41,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:42:41,693 INFO L225 Difference]: With dead ends: 372 [2020-09-25 01:42:41,694 INFO L226 Difference]: Without dead ends: 243 [2020-09-25 01:42:41,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:42:41,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-25 01:42:41,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 203. [2020-09-25 01:42:41,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-09-25 01:42:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 217 transitions. [2020-09-25 01:42:41,841 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 217 transitions. Word has length 142 [2020-09-25 01:42:41,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:42:41,843 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 217 transitions. [2020-09-25 01:42:41,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:42:41,843 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 217 transitions. [2020-09-25 01:42:41,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:42:41,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:42:41,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:42:41,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:42:41,858 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:42:41,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:42:41,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1438488407, now seen corresponding path program 1 times [2020-09-25 01:42:41,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:42:41,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176845518] [2020-09-25 01:42:41,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:42:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:41,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:42,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:43,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:44,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:45,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:46,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:46,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:42:46,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:42:46,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 01:42:46,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:46,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:42:46,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:42:46,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:42:46,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:42:47,336 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:42:47,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:42:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:42:47,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 01:42:47,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:47,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:47,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:42:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:47,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:47,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:47,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:47,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:42:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:47,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:42:47,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:47,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:42:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:47,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:42:47,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:47,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:42:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:47,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:47,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:47,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:42:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:47,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:42:47,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:42:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:47,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:42:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:47,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:42:47,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:42:47,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:47,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:42:47,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176845518] [2020-09-25 01:42:47,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:42:47,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:42:47,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422883925] [2020-09-25 01:42:47,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:42:47,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:42:47,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:42:47,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:42:47,606 INFO L87 Difference]: Start difference. First operand 203 states and 217 transitions. Second operand 4 states. [2020-09-25 01:42:48,340 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:42:48,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:42:48,944 INFO L93 Difference]: Finished difference Result 276 states and 308 transitions. [2020-09-25 01:42:48,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:42:48,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:42:48,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:42:48,951 INFO L225 Difference]: With dead ends: 276 [2020-09-25 01:42:48,951 INFO L226 Difference]: Without dead ends: 226 [2020-09-25 01:42:48,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:42:48,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-25 01:42:49,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 193. [2020-09-25 01:42:49,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 01:42:49,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 204 transitions. [2020-09-25 01:42:49,015 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 204 transitions. Word has length 143 [2020-09-25 01:42:49,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:42:49,016 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 204 transitions. [2020-09-25 01:42:49,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:42:49,016 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 204 transitions. [2020-09-25 01:42:49,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 01:42:49,018 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:42:49,018 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] [2020-09-25 01:42:49,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:42:49,018 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:42:49,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:42:49,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1072023395, now seen corresponding path program 1 times [2020-09-25 01:42:49,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:42:49,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092158736] [2020-09-25 01:42:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:42:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:49,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:49,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:50,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:50,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:54,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:54,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:42:54,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:42:54,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 01:42:54,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:42:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:42:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:42:54,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:54,436 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:42:54,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:42:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:54,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:54,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:54,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:42:54,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:54,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 01:42:54,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:54,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:54,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:54,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:54,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:54,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:42:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:54,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:54,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:54,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:54,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:54,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:54,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:54,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:54,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:54,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:54,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:54,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:42:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:54,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:54,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:54,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:54,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:54,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:54,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:54,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:54,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:54,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:42:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:54,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:54,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:54,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:54,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:54,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:42:54,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:54,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:54,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:54,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:54,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:54,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:42:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:54,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:54,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:54,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:54,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:54,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:54,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:54,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:54,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:54,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:42:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:54,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:54,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:54,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:42:54,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:54,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:42:54,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:42:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:42:54,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:54,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:42:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:54,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:54,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:54,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:54,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:54,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:42:54,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:54,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:54,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:42:54,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:54,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:54,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:42:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:54,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:54,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:54,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:54,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:54,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 01:42:54,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:54,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:42:54,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:54,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:42:54,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:42:54,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092158736] [2020-09-25 01:42:54,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:42:54,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:42:54,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244025502] [2020-09-25 01:42:54,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:42:54,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:42:54,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:42:54,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:42:54,844 INFO L87 Difference]: Start difference. First operand 193 states and 204 transitions. Second operand 5 states. [2020-09-25 01:42:55,389 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:42:56,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:42:56,583 INFO L93 Difference]: Finished difference Result 421 states and 487 transitions. [2020-09-25 01:42:56,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:42:56,584 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 01:42:56,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:42:56,588 INFO L225 Difference]: With dead ends: 421 [2020-09-25 01:42:56,588 INFO L226 Difference]: Without dead ends: 338 [2020-09-25 01:42:56,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:42:56,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-09-25 01:42:56,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 260. [2020-09-25 01:42:56,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-25 01:42:56,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 281 transitions. [2020-09-25 01:42:56,641 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 281 transitions. Word has length 156 [2020-09-25 01:42:56,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:42:56,641 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 281 transitions. [2020-09-25 01:42:56,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:42:56,642 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 281 transitions. [2020-09-25 01:42:56,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 01:42:56,644 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:42:56,644 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] [2020-09-25 01:42:56,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:42:56,644 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:42:56,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:42:56,645 INFO L82 PathProgramCache]: Analyzing trace with hash 209739934, now seen corresponding path program 1 times [2020-09-25 01:42:56,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:42:56,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455684974] [2020-09-25 01:42:56,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:42:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:56,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:57,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:58,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:01,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:01,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 01:43:01,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:43:01,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:43:01,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:01,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:43:01,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 01:43:01,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 01:43:01,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:43:02,153 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:43:02,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:43:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:02,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:02,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:02,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:43:02,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:02,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 01:43:02,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:43:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:43:02,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:02,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:43:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:02,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:02,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:02,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:43:02,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:02,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:43:02,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:02,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:43:02,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:02,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:43:02,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:43:02,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:43:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:02,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:02,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:02,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:43:02,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:02,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:43:02,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:43:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:43:02,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:02,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:43:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:02,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:02,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:02,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:43:02,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:02,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:43:02,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:02,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:43:02,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:02,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:43:02,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:02,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:43:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:02,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:02,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:02,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:43:02,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:02,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:43:02,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:02,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:43:02,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:02,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:43:02,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:02,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:43:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:02,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:02,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:02,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:43:02,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:02,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:43:02,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:02,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:43:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:43:02,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:02,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:43:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:02,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:02,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:02,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:43:02,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:02,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:43:02,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:02,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:43:02,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:02,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:43:02,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:43:02,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 01:43:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:02,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:02,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:02,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:43:02,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:02,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:43:02,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:43:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:43:02,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:02,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:43:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:02,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:02,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:02,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:43:02,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:02,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:43:02,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:02,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:43:02,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:02,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:43:02,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:02,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:43:02,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455684974] [2020-09-25 01:43:02,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:43:02,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:43:02,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992577120] [2020-09-25 01:43:02,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:43:02,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:43:02,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:43:02,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:43:02,575 INFO L87 Difference]: Start difference. First operand 260 states and 281 transitions. Second operand 9 states. [2020-09-25 01:43:03,312 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:43:04,432 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:04,740 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:43:05,043 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:43:05,364 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 01:43:05,679 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:43:05,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:43:05,922 INFO L93 Difference]: Finished difference Result 447 states and 515 transitions. [2020-09-25 01:43:05,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:43:05,923 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 159 [2020-09-25 01:43:05,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:43:05,924 INFO L225 Difference]: With dead ends: 447 [2020-09-25 01:43:05,924 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 01:43:05,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:43:05,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 01:43:05,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 01:43:05,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 01:43:05,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 01:43:05,929 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 159 [2020-09-25 01:43:05,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:43:05,929 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 01:43:05,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:43:05,929 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 01:43:05,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 01:43:05,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:43:05,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 01:43:06,101 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-25 01:43:06,233 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-25 01:43:06,399 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:06,572 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:06,732 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:06,890 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:07,161 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 7 [2020-09-25 01:43:07,326 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:07,675 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 01:43:08,007 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 01:43:08,345 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 01:43:08,589 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-25 01:43:08,915 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 01:43:09,236 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 01:43:09,554 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 01:43:09,796 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-25 01:43:10,050 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 7 [2020-09-25 01:43:10,152 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-25 01:43:10,312 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:10,619 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-25 01:43:10,926 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-25 01:43:11,235 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-25 01:43:11,374 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:43:11,526 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:11,679 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:11,829 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:43:11,992 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:12,147 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:12,300 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:12,453 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:43:12,601 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:43:12,755 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:12,910 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:13,060 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:43:13,214 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:13,368 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:13,521 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:13,669 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:43:13,823 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:13,974 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:43:14,129 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:14,284 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:14,437 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:14,595 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:14,743 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:43:14,907 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:15,013 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-25 01:43:15,167 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:15,321 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:15,475 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:15,623 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:43:15,775 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:16,081 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-25 01:43:16,388 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-25 01:43:16,693 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-25 01:43:16,842 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:43:16,996 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:43:17,267 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 01:43:17,446 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 01:43:17,661 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 01:43:17,915 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 01:43:18,331 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 10 [2020-09-25 01:43:18,723 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 10 [2020-09-25 01:43:18,986 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 01:43:19,196 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 10 [2020-09-25 01:43:19,456 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:43:19,681 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 01:43:19,853 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-25 01:43:20,264 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 10 [2020-09-25 01:43:20,472 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1