/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:07:32,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:07:32,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:07:32,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:07:32,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:07:32,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:07:32,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:07:32,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:07:32,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:07:32,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:07:32,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:07:32,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:07:32,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:07:32,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:07:32,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:07:32,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:07:32,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:07:32,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:07:32,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:07:32,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:07:32,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:07:32,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:07:32,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:07:32,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:07:32,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:07:32,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:07:32,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:07:32,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:07:32,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:07:32,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:07:32,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:07:32,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:07:32,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:07:32,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:07:32,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:07:32,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:07:32,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:07:32,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:07:32,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:07:32,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:07:32,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:07:32,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:07:32,956 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:07:32,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:07:32,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:07:32,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:07:32,959 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:07:32,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:07:32,959 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:07:32,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:07:32,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:07:32,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:07:32,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:07:32,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:07:32,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:07:32,961 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:07:32,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:07:32,962 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:07:32,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:07:32,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:07:32,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:07:32,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:07:32,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:07:32,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:07:32,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:07:32,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:07:32,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:07:32,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:07:32,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:07:32,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:07:32,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:07:32,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:07:33,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:07:33,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:07:33,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:07:33,485 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:07:33,485 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:07:33,486 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-24 20:07:33,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9043a6a95/8b89186ab71e49699bd5d39122acc01d/FLAG20e4b17c8 [2020-09-24 20:07:34,197 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:07:34,197 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-24 20:07:34,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9043a6a95/8b89186ab71e49699bd5d39122acc01d/FLAG20e4b17c8 [2020-09-24 20:07:34,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9043a6a95/8b89186ab71e49699bd5d39122acc01d [2020-09-24 20:07:34,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:07:34,494 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:07:34,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:07:34,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:07:34,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:07:34,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:07:34" (1/1) ... [2020-09-24 20:07:34,506 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 08:07:34, skipping insertion in model container [2020-09-24 20:07:34,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:07:34" (1/1) ... [2020-09-24 20:07:34,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:07:34,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:07:34,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:07:35,041 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:07:35,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:07:35,179 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:07:35,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:35 WrapperNode [2020-09-24 20:07:35,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:07:35,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:07:35,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:07:35,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:07:35,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:35" (1/1) ... [2020-09-24 20:07:35,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:35" (1/1) ... [2020-09-24 20:07:35,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:35" (1/1) ... [2020-09-24 20:07:35,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:35" (1/1) ... [2020-09-24 20:07:35,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:35" (1/1) ... [2020-09-24 20:07:35,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:35" (1/1) ... [2020-09-24 20:07:35,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:35" (1/1) ... [2020-09-24 20:07:35,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:07:35,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:07:35,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:07:35,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:07:35,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:07:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:07:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:07:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:07:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:07:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:07:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:07:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:07:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:07:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:07:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:07:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:07:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:07:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:07:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:07:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 20:07:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:07:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 20:07:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:07:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:07:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:07:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:07:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:07:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:07:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:07:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:07:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:07:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:07:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:07:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:07:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:07:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:07:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:07:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:07:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:07:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:07:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:07:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:07:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:07:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:07:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:07:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:07:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:07:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:07:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:07:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:07:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:07:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:07:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:07:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:07:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:07:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:07:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:07:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:07:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 20:07:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 20:07:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:07:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:07:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:07:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:07:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:07:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:07:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:07:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:07:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:07:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:07:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:07:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:07:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:07:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:07:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:07:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:07:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:07:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:07:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:07:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:07:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:07:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:07:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:07:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:07:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:07:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:07:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:07:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:07:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:07:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:07:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:07:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:07:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:07:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:07:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:07:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:07:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:07:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:07:35,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:07:36,663 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:07:36,663 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:07:36,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:07:36 BoogieIcfgContainer [2020-09-24 20:07:36,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:07:36,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:07:36,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:07:36,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:07:36,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:07:34" (1/3) ... [2020-09-24 20:07:36,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418b45c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:07:36, skipping insertion in model container [2020-09-24 20:07:36,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:35" (2/3) ... [2020-09-24 20:07:36,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418b45c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:07:36, skipping insertion in model container [2020-09-24 20:07:36,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:07:36" (3/3) ... [2020-09-24 20:07:36,684 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2020-09-24 20:07:36,697 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:07:36,710 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:07:36,736 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:07:36,773 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:07:36,773 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:07:36,773 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:07:36,773 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:07:36,774 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:07:36,774 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:07:36,774 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:07:36,774 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:07:36,809 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-09-24 20:07:36,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:07:36,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:07:36,851 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 20:07:36,852 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:07:36,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:07:36,863 INFO L82 PathProgramCache]: Analyzing trace with hash -483838742, now seen corresponding path program 1 times [2020-09-24 20:07:36,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:07:36,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179183037] [2020-09-24 20:07:36,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:07:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:37,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:37,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:39,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:40,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:41,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:42,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:42,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 20:07:42,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:07:42,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-24 20:07:42,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:42,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:07:42,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 20:07:42,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 20:07:42,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:07:42,793 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:07:42,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:07:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:42,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:07:43,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:43,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-24 20:07:43,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:43,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:43,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 20:07:43,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:43,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:07:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:43,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:43,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:43,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:07:43,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:43,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:43,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:43,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:43,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:07:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:43,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:43,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:43,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:07:43,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:43,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:43,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:43,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:43,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:07:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:43,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:43,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:43,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 20:07:43,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:43,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:43,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:07:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:43,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:43,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:43,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:07:43,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:43,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:43,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:07:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:43,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:43,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:43,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:07:43,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:43,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:43,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:07:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:43,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:43,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:43,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:43,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:43,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:07:43,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:43,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:43,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:43,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:07:43,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179183037] [2020-09-24 20:07:43,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:07:43,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:07:43,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681637403] [2020-09-24 20:07:43,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:07:43,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:07:43,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:07:43,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:07:43,416 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 8 states. [2020-09-24 20:07:44,108 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:07:45,444 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:45,763 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:07:46,131 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:46,518 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:07:46,867 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:47,629 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:47,951 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:48,335 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:49,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:07:49,630 INFO L93 Difference]: Finished difference Result 607 states and 763 transitions. [2020-09-24 20:07:49,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:07:49,633 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 20:07:49,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:07:49,655 INFO L225 Difference]: With dead ends: 607 [2020-09-24 20:07:49,655 INFO L226 Difference]: Without dead ends: 407 [2020-09-24 20:07:49,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:07:49,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-24 20:07:49,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 362. [2020-09-24 20:07:49,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-09-24 20:07:49,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 417 transitions. [2020-09-24 20:07:49,799 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 417 transitions. Word has length 142 [2020-09-24 20:07:49,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:07:49,800 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 417 transitions. [2020-09-24 20:07:49,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:07:49,800 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 417 transitions. [2020-09-24 20:07:49,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 20:07:49,805 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:07:49,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:07:49,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:07:49,806 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:07:49,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:07:49,807 INFO L82 PathProgramCache]: Analyzing trace with hash 577972371, now seen corresponding path program 1 times [2020-09-24 20:07:49,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:07:49,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820440462] [2020-09-24 20:07:49,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:07:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:49,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:50,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:54,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:54,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 20:07:54,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:07:54,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-09-24 20:07:54,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:54,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:07:54,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 20:07:54,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-24 20:07:54,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:55,249 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:07:55,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:07:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:07:55,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-24 20:07:55,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:07:55,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:55,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:07:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:55,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:55,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:55,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:55,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:07:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:55,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:55,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:55,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:55,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:07:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:55,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:07:55,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:55,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:55,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:07:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:55,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:55,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:55,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:55,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 20:07:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:07:55,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:07:55,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:07:55,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:55,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 20:07:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:07:55,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:07:55,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 20:07:55,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:07:55,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:07:55,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:07:55,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:55,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:07:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:07:55,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 20:07:55,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:07:55,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:07:55,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:07:55,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:55,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:07:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:07:55,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 20:07:55,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:55,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:07:55,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:55,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:07:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:07:55,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:07:55,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:55,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:55,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:07:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:07:55,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:07:55,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:07:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:55,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 20:07:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:55,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:07:55,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:55,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:55,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:56,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 20:07:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:56,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:56,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:56,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:56,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:07:56,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:07:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:56,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:07:56,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820440462] [2020-09-24 20:07:56,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:07:56,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 20:07:56,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393000005] [2020-09-24 20:07:56,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 20:07:56,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:07:56,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 20:07:56,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:07:56,129 INFO L87 Difference]: Start difference. First operand 362 states and 417 transitions. Second operand 15 states. [2020-09-24 20:07:56,664 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:57,684 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:58,367 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 20:07:58,784 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:59,193 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:59,533 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:00,279 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:00,622 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:00,912 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:08:01,216 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:08:01,545 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:01,864 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:02,255 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:02,559 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:02,892 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:03,619 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:03,926 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:04,243 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:04,568 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:04,924 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:05,213 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:07,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:08:07,593 INFO L93 Difference]: Finished difference Result 1149 states and 1567 transitions. [2020-09-24 20:08:07,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-24 20:08:07,594 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 194 [2020-09-24 20:08:07,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:08:07,605 INFO L225 Difference]: With dead ends: 1149 [2020-09-24 20:08:07,605 INFO L226 Difference]: Without dead ends: 848 [2020-09-24 20:08:07,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=296, Invalid=1264, Unknown=0, NotChecked=0, Total=1560 [2020-09-24 20:08:07,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2020-09-24 20:08:07,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 589. [2020-09-24 20:08:07,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-09-24 20:08:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 683 transitions. [2020-09-24 20:08:07,734 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 683 transitions. Word has length 194 [2020-09-24 20:08:07,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:08:07,735 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 683 transitions. [2020-09-24 20:08:07,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 20:08:07,735 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 683 transitions. [2020-09-24 20:08:07,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 20:08:07,739 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:08:07,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:08:07,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:08:07,740 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:08:07,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:08:07,740 INFO L82 PathProgramCache]: Analyzing trace with hash 392683279, now seen corresponding path program 1 times [2020-09-24 20:08:07,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:08:07,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150034399] [2020-09-24 20:08:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:08:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:07,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:08,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:08,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 20:08:08,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:08,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 715 [2020-09-24 20:08:08,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-24 20:08:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:08,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:08,785 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:08:08,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:08:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:08,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:08,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:08,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:08:08,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:08,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 20:08:08,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:08,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:08,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:08:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:08,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:08,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:08,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:08,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:08,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:08,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:08,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:08:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:08,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:08,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:08,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:08,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:08,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:08,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:08,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:08,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:08,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:08,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:08,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:08:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:08,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:08,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:08,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:08,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:08,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:08,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:08,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:08:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:08,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:08,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:08,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:08,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:08,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:08:08,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:08,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:08,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:08,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:08,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:08,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:08:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:08,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:08,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:08,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:08:08,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:08,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:08,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:08,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:08,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 20:08:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:08,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:08,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:08,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:08:08,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:08,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:08,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:08,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:08,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:09,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:08:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:09,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:09,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:09,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:08:09,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:09,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 20:08:09,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:08:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:09,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:09,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:09,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:09,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:09,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:08:09,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:09,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 20:08:09,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:08:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:09,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:09,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:09,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:09,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:09,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:08:09,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:09,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 20:08:09,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:09,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:09,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:08:09,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:09,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:09,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:08:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:09,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:09,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:09,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:08:09,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:09,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:08:09,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:09,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:08:09,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:09,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:09,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:09,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:08:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:09,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:09,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:09,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:08:09,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:09,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:09,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:09,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:09,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:08:09,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:09,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:09,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 20:08:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:09,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:09,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:09,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:09,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:09,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:09,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:09,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:09,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:09,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:09,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:09,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 20:08:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:09,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:09,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:09,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:09,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:09,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:09,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:09,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:09,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:09,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:09,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:08:09,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150034399] [2020-09-24 20:08:09,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:08:09,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:08:09,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646346462] [2020-09-24 20:08:09,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:08:09,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:08:09,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:08:09,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:08:09,297 INFO L87 Difference]: Start difference. First operand 589 states and 683 transitions. Second operand 10 states. [2020-09-24 20:08:10,811 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:11,103 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:11,420 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:11,756 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:12,037 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:13,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:08:13,368 INFO L93 Difference]: Finished difference Result 1483 states and 1976 transitions. [2020-09-24 20:08:13,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:08:13,369 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-09-24 20:08:13,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:08:13,378 INFO L225 Difference]: With dead ends: 1483 [2020-09-24 20:08:13,378 INFO L226 Difference]: Without dead ends: 1004 [2020-09-24 20:08:13,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:08:13,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2020-09-24 20:08:13,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 601. [2020-09-24 20:08:13,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-09-24 20:08:13,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 695 transitions. [2020-09-24 20:08:13,498 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 695 transitions. Word has length 199 [2020-09-24 20:08:13,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:08:13,500 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 695 transitions. [2020-09-24 20:08:13,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:08:13,500 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 695 transitions. [2020-09-24 20:08:13,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-24 20:08:13,504 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:08:13,504 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:08:13,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:08:13,505 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:08:13,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:08:13,505 INFO L82 PathProgramCache]: Analyzing trace with hash -384148779, now seen corresponding path program 1 times [2020-09-24 20:08:13,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:08:13,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57224560] [2020-09-24 20:08:13,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:08:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:14,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:18,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:18,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-09-24 20:08:18,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:08:18,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-24 20:08:18,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:18,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:08:18,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:08:18,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-24 20:08:18,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:18,888 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:08:18,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:08:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:18,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:08:19,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-24 20:08:19,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:08:19,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:19,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:08:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:19,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:19,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:19,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:08:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:19,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:19,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:19,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:08:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:19,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:08:19,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:19,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:08:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:19,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:19,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:19,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:08:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:08:19,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:19,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:08:19,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 20:08:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:08:19,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:08:19,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:08:19,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 20:08:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:08:19,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 20:08:19,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:08:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:08:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:08:19,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:08:19,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:08:19,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:08:19,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:19,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:19,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:19,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:19,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 20:08:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:08:19,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 20:08:19,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 20:08:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 20:08:19,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:08:19,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 20:08:19,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 20:08:19,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:08:19,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:08:19,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:08:19,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:08:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:08:19,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:19,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 20:08:19,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:19,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:08:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:08:19,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:08:19,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:19,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:19,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:08:19,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-24 20:08:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:19,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:19,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:19,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:19,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 20:08:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:19,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:19,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:19,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:19,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:19,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:19,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:19,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:19,742 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 20:08:19,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57224560] [2020-09-24 20:08:19,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:08:19,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 20:08:19,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735795891] [2020-09-24 20:08:19,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:08:19,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:08:19,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:08:19,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:08:19,748 INFO L87 Difference]: Start difference. First operand 601 states and 695 transitions. Second operand 10 states. [2020-09-24 20:08:20,262 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:08:21,602 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186