/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_spec5_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:41:32,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:41:32,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:41:32,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:41:32,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:41:32,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:41:32,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:41:32,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:41:32,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:41:32,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:41:32,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:41:32,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:41:32,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:41:32,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:41:32,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:41:32,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:41:32,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:41:32,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:41:32,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:41:32,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:41:32,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:41:32,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:41:32,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:41:32,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:41:32,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:41:32,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:41:32,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:41:32,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:41:32,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:41:32,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:41:32,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:41:32,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:41:32,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:41:32,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:41:32,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:41:32,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:41:32,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:41:32,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:41:32,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:41:32,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:41:32,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:41:32,434 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 23:41:32,483 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:41:32,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:41:32,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:41:32,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:41:32,486 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:41:32,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:41:32,486 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:41:32,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:41:32,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:41:32,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:41:32,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:41:32,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:41:32,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:41:32,489 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:41:32,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:41:32,489 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:41:32,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:41:32,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:41:32,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:41:32,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:41:32,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:41:32,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:41:32,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:41:32,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:41:32,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:41:32,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:41:32,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:41:32,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:41:32,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:41:32,492 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 23:41:32,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:41:32,946 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:41:32,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:41:32,953 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:41:32,954 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:41:32,955 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2020-09-24 23:41:33,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8206eacd1/45d66077769c4cbc949ffff7ac743a5c/FLAG1fbd689d5 [2020-09-24 23:41:33,649 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:41:33,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2020-09-24 23:41:33,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8206eacd1/45d66077769c4cbc949ffff7ac743a5c/FLAG1fbd689d5 [2020-09-24 23:41:33,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8206eacd1/45d66077769c4cbc949ffff7ac743a5c [2020-09-24 23:41:33,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:41:33,965 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:41:33,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:41:33,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:41:33,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:41:33,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:41:33" (1/1) ... [2020-09-24 23:41:33,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1e44a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:33, skipping insertion in model container [2020-09-24 23:41:33,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:41:33" (1/1) ... [2020-09-24 23:41:33,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:41:34,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:41:34,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:41:34,508 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:41:34,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:41:34,671 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:41:34,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:34 WrapperNode [2020-09-24 23:41:34,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:41:34,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:41:34,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:41:34,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:41:34,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:34" (1/1) ... [2020-09-24 23:41:34,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:34" (1/1) ... [2020-09-24 23:41:34,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:34" (1/1) ... [2020-09-24 23:41:34,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:34" (1/1) ... [2020-09-24 23:41:34,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:34" (1/1) ... [2020-09-24 23:41:34,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:34" (1/1) ... [2020-09-24 23:41:34,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:34" (1/1) ... [2020-09-24 23:41:34,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:41:34,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:41:34,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:41:34,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:41:34,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:34" (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 23:41:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:41:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:41:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:41:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:41:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:41:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:41:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:41:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:41:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:41:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 23:41:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 23:41:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 23:41:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:41:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:41:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:41:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:41:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:41:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:41:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:41:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:41:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:41:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:41:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:41:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:41:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:41:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:41:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:41:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:41:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:41:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:41:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:41:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:41:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:41:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:41:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:41:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:41:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:41:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:41:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:41:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:41:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:41:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:41:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:41:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:41:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:41:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:41:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:41:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:41:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:41:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:41:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:41:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:41:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 23:41:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:41:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:41:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:41:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:41:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:41:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:41:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:41:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:41:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 23:41:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 23:41:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:41:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:41:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:41:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:41:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:41:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:41:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:41:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:41:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:41:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:41:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:41:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:41:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:41:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:41:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:41:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:41:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:41:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:41:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:41:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:41:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:41:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:41:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:41:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:41:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:41:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:41:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:41:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:41:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:41:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:41:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:41:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:41:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:41:36,127 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:41:36,128 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:41:36,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:41:36 BoogieIcfgContainer [2020-09-24 23:41:36,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:41:36,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:41:36,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:41:36,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:41:36,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:41:33" (1/3) ... [2020-09-24 23:41:36,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3b0880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:41:36, skipping insertion in model container [2020-09-24 23:41:36,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:34" (2/3) ... [2020-09-24 23:41:36,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3b0880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:41:36, skipping insertion in model container [2020-09-24 23:41:36,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:41:36" (3/3) ... [2020-09-24 23:41:36,146 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2020-09-24 23:41:36,158 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:41:36,169 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:41:36,189 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:41:36,220 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:41:36,220 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:41:36,220 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:41:36,220 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:41:36,220 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:41:36,220 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:41:36,221 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:41:36,221 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:41:36,251 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states. [2020-09-24 23:41:36,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 23:41:36,271 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:41:36,273 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:41:36,274 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:41:36,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:41:36,282 INFO L82 PathProgramCache]: Analyzing trace with hash -548539878, now seen corresponding path program 1 times [2020-09-24 23:41:36,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:41:36,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270575304] [2020-09-24 23:41:36,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:41:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:36,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:36,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:38,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:38,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:41,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:41,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 23:41:41,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:41:41,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-24 23:41:41,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:41,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:41:41,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 23:41:41,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 23:41:41,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-24 23:41:42,474 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:41:42,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:42,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:41:42,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:42,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-09-24 23:41:42,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:42,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:42,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:42,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:41:42,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:42,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:41:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:42,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:42,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:42,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:41:42,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:41:42,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:42,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:41:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:43,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:41:43,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:43,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:43,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:41:43,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:43,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:41:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:43,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:43,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:41:43,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:43,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:43,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:41:43,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:43,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:41:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:43,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:43,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 23:41:43,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:43,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:43,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:41:43,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:43,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:41:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:43,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:41:43,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:41:43,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:43,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:43,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:41:43,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:43,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:41:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:43,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:41:43,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:41:43,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:43,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:43,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:41:43,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:43,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:43,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:43,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:43,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:43,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:43,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:43,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 23:41:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:43,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:43,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:41:43,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:43,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:43,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:41:43,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:43,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 23:41:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:43,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:43,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:41:43,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:41:43,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:43,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:41:43,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:43,213 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 23:41:43,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270575304] [2020-09-24 23:41:43,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:41:43,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:41:43,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266345520] [2020-09-24 23:41:43,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:41:43,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:41:43,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:41:43,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:41:43,266 INFO L87 Difference]: Start difference. First operand 323 states. Second operand 9 states. [2020-09-24 23:41:43,961 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:41:44,741 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:41:45,012 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:41:46,259 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:41:46,553 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:41:46,888 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:41:47,346 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:41:47,662 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:41:47,972 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:41:48,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:41:48,856 INFO L93 Difference]: Finished difference Result 616 states and 742 transitions. [2020-09-24 23:41:48,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:41:48,859 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 23:41:48,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:41:48,881 INFO L225 Difference]: With dead ends: 616 [2020-09-24 23:41:48,882 INFO L226 Difference]: Without dead ends: 417 [2020-09-24 23:41:48,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:41:48,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-09-24 23:41:49,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 369. [2020-09-24 23:41:49,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-09-24 23:41:49,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 412 transitions. [2020-09-24 23:41:49,028 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 412 transitions. Word has length 160 [2020-09-24 23:41:49,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:41:49,029 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 412 transitions. [2020-09-24 23:41:49,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:41:49,029 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 412 transitions. [2020-09-24 23:41:49,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 23:41:49,036 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:41:49,037 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:41:49,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:41:49,037 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:41:49,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:41:49,038 INFO L82 PathProgramCache]: Analyzing trace with hash -173606010, now seen corresponding path program 1 times [2020-09-24 23:41:49,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:41:49,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634413590] [2020-09-24 23:41:49,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:41:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:52,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:54,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:54,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-09-24 23:41:54,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:41:54,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-24 23:41:54,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:54,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:41:54,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:41:54,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-24 23:41:54,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:41:54,448 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:41:54,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:54,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:54,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:54,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:41:54,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:54,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 23:41:54,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:41:54,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:54,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:41:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:54,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:54,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:54,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:54,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:54,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:41:54,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:54,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:54,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:54,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:41:54,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:54,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:41:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:54,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:54,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:54,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:54,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:54,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:41:54,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:54,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:54,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:54,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:41:54,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:54,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:41:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:54,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:54,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:54,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:54,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:54,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:41:54,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:41:54,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:54,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:41:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:54,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:54,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:54,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:54,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:54,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:54,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:54,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:54,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:54,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:41:54,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:41:54,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:41:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:54,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:54,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:54,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:41:54,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:54,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:54,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:41:54,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:54,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:41:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:54,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:54,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:54,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 23:41:54,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:54,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 23:41:54,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:41:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:41:54,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 23:41:54,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:54,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:54,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:54,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:54,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:41:54,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:54,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:41:54,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:54,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:54,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:54,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:41:54,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:54,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:54,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:54,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:54,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:54,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:54,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:54,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:54,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:54,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:54,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:54,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:54,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 23:41:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:54,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:41:55,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:41:55,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:41:55,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:41:55,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:55,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:41:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:55,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:41:55,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:41:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:41:55,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:55,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 23:41:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:41:55,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:55,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:55,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:41:55,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:55,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:55,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:55,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:55,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:55,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:55,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:41:55,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 23:41:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:41:55,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:41:55,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 23:41:55,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:41:55,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 23:41:55,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:41:55,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:55,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:41:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:41:55,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 23:41:55,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:41:55,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 23:41:55,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:41:55,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:41:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:41:55,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 23:41:55,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:41:55,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:41:55,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:41:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:41:55,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:41:55,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:55,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:55,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:41:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:41:55,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:41:55,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:41:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:55,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 23:41:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:55,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:55,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:55,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:41:55,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:55,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 23:41:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:55,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:55,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:55,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:41:55,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:55,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 23:41:55,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634413590] [2020-09-24 23:41:55,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:41:55,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 23:41:55,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998737996] [2020-09-24 23:41:55,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 23:41:55,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:41:55,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 23:41:55,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:41:55,634 INFO L87 Difference]: Start difference. First operand 369 states and 412 transitions. Second operand 19 states. [2020-09-24 23:41:56,261 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:41:57,817 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-24 23:41:58,663 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:41:59,011 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:41:59,379 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:41:59,766 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:42:00,108 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:00,801 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:01,143 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:42:01,732 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 23:42:02,073 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:42:02,735 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 23:42:03,097 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:03,736 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 23:42:04,100 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:42:04,743 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 23:42:05,106 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:05,719 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 23:42:06,810 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-09-24 23:42:07,462 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 194 [2020-09-24 23:42:08,111 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 196 [2020-09-24 23:42:08,768 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-09-24 23:42:09,415 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 194 [2020-09-24 23:42:10,020 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-09-24 23:42:11,744 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:42:12,060 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:12,378 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:42:12,701 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:13,016 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:42:13,309 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:42:13,792 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:14,103 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:14,438 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:14,754 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:42:15,092 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:42:15,418 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:42:15,826 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:16,156 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:16,506 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:16,817 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:42:17,138 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:17,472 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:18,818 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:19,148 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:42:19,484 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:19,813 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:42:20,139 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:21,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:42:21,933 INFO L93 Difference]: Finished difference Result 1617 states and 2363 transitions. [2020-09-24 23:42:21,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-09-24 23:42:21,934 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 235 [2020-09-24 23:42:21,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:42:21,959 INFO L225 Difference]: With dead ends: 1617 [2020-09-24 23:42:21,959 INFO L226 Difference]: Without dead ends: 1363 [2020-09-24 23:42:21,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2617 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=1244, Invalid=6766, Unknown=0, NotChecked=0, Total=8010 [2020-09-24 23:42:21,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2020-09-24 23:42:22,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1032. [2020-09-24 23:42:22,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2020-09-24 23:42:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1275 transitions. [2020-09-24 23:42:22,202 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1275 transitions. Word has length 235 [2020-09-24 23:42:22,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:42:22,203 INFO L479 AbstractCegarLoop]: Abstraction has 1032 states and 1275 transitions. [2020-09-24 23:42:22,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 23:42:22,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1275 transitions. [2020-09-24 23:42:22,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-24 23:42:22,209 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:42:22,210 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:42:22,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:42:22,210 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:42:22,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:42:22,211 INFO L82 PathProgramCache]: Analyzing trace with hash -376632915, now seen corresponding path program 1 times [2020-09-24 23:42:22,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:42:22,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111133199] [2020-09-24 23:42:22,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:42:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:22,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:22,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:22,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:23,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:27,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:27,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-09-24 23:42:27,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:42:27,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-09-24 23:42:27,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:27,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:42:27,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 23:42:27,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 23:42:27,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:27,616 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:42:27,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:27,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking...