/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:38:15,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:38:15,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:38:15,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:38:15,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:38:15,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:38:15,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:38:15,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:38:15,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:38:15,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:38:15,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:38:15,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:38:15,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:38:15,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:38:15,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:38:15,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:38:15,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:38:15,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:38:15,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:38:15,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:38:15,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:38:15,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:38:15,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:38:15,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:38:15,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:38:15,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:38:15,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:38:15,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:38:15,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:38:15,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:38:15,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:38:15,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:38:15,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:38:15,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:38:15,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:38:15,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:38:15,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:38:15,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:38:15,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:38:15,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:38:15,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:38:15,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 23:38:15,310 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:38:15,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:38:15,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:38:15,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:38:15,313 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:38:15,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:38:15,313 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:38:15,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:38:15,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:38:15,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:38:15,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:38:15,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:38:15,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:38:15,316 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:38:15,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:38:15,316 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:38:15,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:38:15,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:38:15,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:38:15,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:38:15,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:38:15,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:38:15,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:38:15,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:38:15,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:38:15,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:38:15,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:38:15,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:38:15,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:38:15,319 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:38:15,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:38:15,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:38:15,762 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:38:15,764 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:38:15,765 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:38:15,766 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c [2020-09-24 23:38:15,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1eed9eb7/f50a5118706e4e6b8aae41ba0e6430e9/FLAG9ce19bbff [2020-09-24 23:38:16,430 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:38:16,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c [2020-09-24 23:38:16,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1eed9eb7/f50a5118706e4e6b8aae41ba0e6430e9/FLAG9ce19bbff [2020-09-24 23:38:16,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1eed9eb7/f50a5118706e4e6b8aae41ba0e6430e9 [2020-09-24 23:38:16,740 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:38:16,746 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:38:16,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:38:16,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:38:16,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:38:16,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:38:16" (1/1) ... [2020-09-24 23:38:16,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f53a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:16, skipping insertion in model container [2020-09-24 23:38:16,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:38:16" (1/1) ... [2020-09-24 23:38:16,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:38:16,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:38:17,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:38:17,314 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:38:17,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:38:17,446 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:38:17,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:17 WrapperNode [2020-09-24 23:38:17,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:38:17,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:38:17,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:38:17,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:38:17,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:17" (1/1) ... [2020-09-24 23:38:17,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:17" (1/1) ... [2020-09-24 23:38:17,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:17" (1/1) ... [2020-09-24 23:38:17,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:17" (1/1) ... [2020-09-24 23:38:17,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:17" (1/1) ... [2020-09-24 23:38:17,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:17" (1/1) ... [2020-09-24 23:38:17,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:17" (1/1) ... [2020-09-24 23:38:17,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:38:17,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:38:17,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:38:17,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:38:17,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:38:17,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:38:17,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:38:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:38:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:38:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:38:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:38:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:38:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:38:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:38:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:38:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:38:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:38:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:38:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:38:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:38:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:38:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:38:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:38:17,630 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:38:17,630 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:38:17,630 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:38:17,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:38:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:38:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:38:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:38:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:38:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:38:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:38:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:38:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:38:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:38:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:38:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:38:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:38:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:38:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:38:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:38:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:38:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:38:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:38:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:38:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:38:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:38:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:38:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:38:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:38:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:38:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:38:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:38:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:38:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:38:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:38:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:38:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:38:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:38:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:38:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:38:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:38:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:38:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:38:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:38:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:38:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:38:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:38:17,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:38:17,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:38:17,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:38:17,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:38:17,638 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:38:17,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:38:17,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:38:17,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:38:17,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:38:17,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:38:17,639 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:38:17,639 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:38:17,639 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:38:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:38:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:38:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:38:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:38:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:38:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:38:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:38:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:38:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:38:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:38:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:38:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:38:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:38:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:38:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:38:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:38:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:38:18,761 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:38:18,761 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:38:18,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:38:18 BoogieIcfgContainer [2020-09-24 23:38:18,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:38:18,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:38:18,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:38:18,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:38:18,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:38:16" (1/3) ... [2020-09-24 23:38:18,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6197f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:38:18, skipping insertion in model container [2020-09-24 23:38:18,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:17" (2/3) ... [2020-09-24 23:38:18,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6197f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:38:18, skipping insertion in model container [2020-09-24 23:38:18,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:38:18" (3/3) ... [2020-09-24 23:38:18,782 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product31.cil.c [2020-09-24 23:38:18,793 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:38:18,805 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:38:18,829 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:38:18,865 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:38:18,865 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:38:18,866 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:38:18,866 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:38:18,866 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:38:18,866 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:38:18,866 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:38:18,866 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:38:18,897 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-24 23:38:18,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:38:18,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:38:18,916 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] [2020-09-24 23:38:18,917 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:38:18,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:38:18,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1955502520, now seen corresponding path program 1 times [2020-09-24 23:38:18,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:38:18,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855611198] [2020-09-24 23:38:18,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:38:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:19,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:19,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:21,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:22,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:24,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:24,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:38:24,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:38:24,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:38:24,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:24,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:38:24,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:38:24,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:38:24,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:38:24,771 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:38:24,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:38:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:24,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:25,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:25,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:38:25,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-09-24 23:38:25,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:38:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:25,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:38:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:25,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:25,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:25,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:25,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:25,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 23:38:25,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:25,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:25,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:25,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:25,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:25,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:38:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:25,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:25,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:25,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:25,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:25,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:38:25,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:25,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:25,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:25,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:25,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:38:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:25,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:25,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:25,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:25,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:25,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:38:25,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:25,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:25,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:25,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:25,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:25,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:38:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:25,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:25,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:25,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:25,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:25,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:38:25,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:25,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:25,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:25,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:25,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:25,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:38:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:25,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:25,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:25,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:25,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:25,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:38:25,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:25,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:38:25,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:25,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:25,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:25,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:38:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:25,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:25,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:25,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:25,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:25,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:25,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:25,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:25,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:25,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:25,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:25,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:38:25,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1855611198] [2020-09-24 23:38:25,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:38:25,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:38:25,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023083420] [2020-09-24 23:38:25,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:38:25,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:38:25,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:38:25,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:38:25,422 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 8 states. [2020-09-24 23:38:26,026 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:38:27,081 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:27,389 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:27,742 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:28,118 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:38:28,409 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:28,797 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:29,122 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:31,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:38:31,121 INFO L93 Difference]: Finished difference Result 635 states and 783 transitions. [2020-09-24 23:38:31,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 23:38:31,123 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 23:38:31,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:38:31,148 INFO L225 Difference]: With dead ends: 635 [2020-09-24 23:38:31,148 INFO L226 Difference]: Without dead ends: 440 [2020-09-24 23:38:31,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 23:38:31,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-09-24 23:38:31,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 394. [2020-09-24 23:38:31,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-24 23:38:31,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 449 transitions. [2020-09-24 23:38:31,303 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 449 transitions. Word has length 142 [2020-09-24 23:38:31,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:38:31,304 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 449 transitions. [2020-09-24 23:38:31,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:38:31,305 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 449 transitions. [2020-09-24 23:38:31,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 23:38:31,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:38:31,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:38:31,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:38:31,311 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:38:31,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:38:31,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1412835206, now seen corresponding path program 1 times [2020-09-24 23:38:31,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:38:31,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869496439] [2020-09-24 23:38:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:38:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:31,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:31,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:32,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:36,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:36,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 23:38:36,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:38:36,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-24 23:38:36,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:36,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:38:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:38:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 23:38:36,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:36,698 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:38:36,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:38:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:36,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:36,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:36,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:38:36,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:36,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 23:38:36,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:36,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:36,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:36,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:38:36,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:37,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:38:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:37,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:37,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:37,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:37,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:37,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:38:37,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:37,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:37,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:37,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:37,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:38:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:37,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:37,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:37,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:37,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:37,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:37,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:37,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:37,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:37,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:37,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:37,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:38:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:37,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:37,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:37,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:37,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:38:37,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:37,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:37,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:37,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:37,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:37,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:38:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:37,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:37,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:37,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:37,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:37,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:37,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:37,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:37,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:37,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 23:38:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:37,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:37,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:37,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:38:37,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:37,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:38:37,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:37,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:37,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:38:37,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:37,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:37,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 23:38:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:37,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:37,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:37,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:37,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:37,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:37,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:37,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:37,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:37,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:37,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:37,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:38:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:37,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:37,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:37,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:37,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:37,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:37,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:37,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:37,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:37,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:37,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:37,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:38:37,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869496439] [2020-09-24 23:38:37,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:38:37,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:38:37,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144340784] [2020-09-24 23:38:37,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:38:37,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:38:37,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:38:37,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:38:37,168 INFO L87 Difference]: Start difference. First operand 394 states and 449 transitions. Second operand 5 states. [2020-09-24 23:38:37,598 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:38:38,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:38:38,270 INFO L93 Difference]: Finished difference Result 583 states and 699 transitions. [2020-09-24 23:38:38,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:38:38,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 23:38:38,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:38:38,275 INFO L225 Difference]: With dead ends: 583 [2020-09-24 23:38:38,275 INFO L226 Difference]: Without dead ends: 288 [2020-09-24 23:38:38,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:38:38,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-24 23:38:38,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 266. [2020-09-24 23:38:38,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-24 23:38:38,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 284 transitions. [2020-09-24 23:38:38,319 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 284 transitions. Word has length 148 [2020-09-24 23:38:38,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:38:38,320 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 284 transitions. [2020-09-24 23:38:38,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:38:38,320 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 284 transitions. [2020-09-24 23:38:38,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 23:38:38,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:38:38,322 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] [2020-09-24 23:38:38,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:38:38,323 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:38:38,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:38:38,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1757695302, now seen corresponding path program 1 times [2020-09-24 23:38:38,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:38:38,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411013463] [2020-09-24 23:38:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:38:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:38,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:38,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:39,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:43,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:43,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 23:38:43,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:38:43,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-24 23:38:43,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:38:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:38:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 23:38:43,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:43,693 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:38:43,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:38:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:43,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:43,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:43,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:38:43,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:43,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-24 23:38:43,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:43,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:43,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:38:43,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:44,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:38:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:44,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:44,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:44,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:44,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:44,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:38:44,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:44,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:44,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:44,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:38:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:44,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:44,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:44,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:44,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:44,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:44,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:44,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:44,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:44,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:44,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:44,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:38:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:44,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:44,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:44,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:44,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:44,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:38:44,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:44,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:44,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:44,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:44,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:44,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:38:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:44,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:44,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:44,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:44,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:44,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:44,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:44,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:44,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:44,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:44,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:44,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 23:38:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:44,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:44,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:44,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:38:44,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:44,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:38:44,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:38:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:38:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:38:44,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:44,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:38:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:44,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:44,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:44,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:44,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:44,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:38:44,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:38:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:44,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:44,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:44,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 23:38:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:44,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:44,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:44,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:44,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:44,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:44,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:44,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:44,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:38:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:38:44,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411013463] [2020-09-24 23:38:44,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:38:44,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 23:38:44,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694958507] [2020-09-24 23:38:44,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:38:44,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:38:44,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:38:44,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:38:44,193 INFO L87 Difference]: Start difference. First operand 266 states and 284 transitions. Second operand 12 states. [2020-09-24 23:38:44,757 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:38:45,528 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:38:46,095 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:46,394 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:46,732 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:47,094 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:38:47,380 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:38:47,685 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:38:47,970 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:48,299 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:48,631 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:38:48,934 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:49,623 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 23:38:50,049 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:38:50,324 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:50,713 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:51,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:38:51,287 INFO L93 Difference]: Finished difference Result 483 states and 547 transitions. [2020-09-24 23:38:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 23:38:51,288 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 157 [2020-09-24 23:38:51,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:38:51,294 INFO L225 Difference]: With dead ends: 483 [2020-09-24 23:38:51,295 INFO L226 Difference]: Without dead ends: 380 [2020-09-24 23:38:51,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2020-09-24 23:38:51,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-09-24 23:38:51,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 331. [2020-09-24 23:38:51,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-24 23:38:51,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 354 transitions. [2020-09-24 23:38:51,360 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 354 transitions. Word has length 157 [2020-09-24 23:38:51,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:38:51,361 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 354 transitions. [2020-09-24 23:38:51,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:38:51,361 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 354 transitions. [2020-09-24 23:38:51,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 23:38:51,364 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:38:51,364 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:38:51,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:38:51,365 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:38:51,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:38:51,365 INFO L82 PathProgramCache]: Analyzing trace with hash 128572963, now seen corresponding path program 1 times [2020-09-24 23:38:51,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:38:51,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635393729] [2020-09-24 23:38:51,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:38:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:51,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:51,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:52,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:55,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:55,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:56,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:56,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 23:38:56,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:38:56,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-24 23:38:56,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:56,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:38:56,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:38:56,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-24 23:38:56,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:56,812 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:38:56,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:38:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:56,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:57,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:57,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:38:57,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:57,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-24 23:38:57,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:57,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:57,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:57,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:38:57,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:57,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:38:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:57,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:57,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:57,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:57,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:57,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:57,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:57,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:57,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:38:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:57,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:57,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:57,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:57,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:57,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:38:57,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:57,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:57,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:57,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:57,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:57,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:38:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:57,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:57,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:57,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:57,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:57,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:38:57,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:57,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:57,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:57,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:38:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:57,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:57,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:57,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:57,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:57,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:57,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:57,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:57,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:57,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 23:38:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:57,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:57,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:57,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:38:57,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:57,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:38:57,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:57,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:38:57,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:38:57,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:38:57,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:57,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:38:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:57,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:57,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:57,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:38:57,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:57,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 23:38:57,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:57,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:38:57,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:38:57,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:38:57,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:57,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:38:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:57,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:57,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:57,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:38:57,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:57,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:38:57,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:38:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:57,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:38:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:57,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:57,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:57,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:57,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:57,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:38:57,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:57,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:57,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:57,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:57,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:57,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 23:38:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:57,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:57,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:57,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:38:57,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:57,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:38:57,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:57,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:38:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:38:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:38:57,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:57,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 23:38:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:57,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:57,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:57,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:57,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:57,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:57,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:57,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:57,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:57,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:57,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:57,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 23:38:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:57,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:57,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:57,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:57,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:57,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:57,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:57,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:57,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:57,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:57,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:57,453 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 23:38:57,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635393729] [2020-09-24 23:38:57,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:38:57,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 23:38:57,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825464947] [2020-09-24 23:38:57,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:38:57,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:38:57,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:38:57,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:38:57,456 INFO L87 Difference]: Start difference. First operand 331 states and 354 transitions. Second operand 9 states. [2020-09-24 23:38:58,245 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-24 23:38:58,876 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:38:59,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:38:59,711 INFO L93 Difference]: Finished difference Result 419 states and 458 transitions. [2020-09-24 23:38:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:38:59,712 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 196 [2020-09-24 23:38:59,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:38:59,714 INFO L225 Difference]: With dead ends: 419 [2020-09-24 23:38:59,714 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 23:38:59,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:38:59,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 23:38:59,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 23:38:59,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 23:38:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 23:38:59,716 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 196 [2020-09-24 23:38:59,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:38:59,717 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 23:38:59,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:38:59,717 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 23:38:59,717 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 23:38:59,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:38:59,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 23:38:59,912 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:39:00,322 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-09-24 23:39:00,679 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 23:39:01,045 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 23:39:01,208 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:39:01,366 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:39:01,751 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-09-24 23:39:02,028 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 23 [2020-09-24 23:39:02,427 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-09-24 23:39:02,701 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 21 [2020-09-24 23:39:02,863 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:39:03,245 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-09-24 23:39:03,407 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:39:03,789 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-09-24 23:39:04,085 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 23 [2020-09-24 23:39:04,228 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:04,552 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 23:39:05,198 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 227 [2020-09-24 23:39:05,516 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189