/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:13:40,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:13:40,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:13:40,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:13:40,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:13:40,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:13:40,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:13:40,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:13:40,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:13:40,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:13:40,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:13:40,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:13:40,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:13:40,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:13:40,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:13:40,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:13:40,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:13:40,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:13:40,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:13:40,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:13:40,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:13:40,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:13:40,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:13:40,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:13:40,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:13:40,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:13:40,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:13:40,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:13:40,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:13:40,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:13:40,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:13:40,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:13:40,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:13:40,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:13:40,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:13:40,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:13:40,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:13:40,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:13:40,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:13:40,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:13:40,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:13:40,388 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 20:13:40,436 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:13:40,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:13:40,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:13:40,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:13:40,440 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:13:40,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:13:40,441 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:13:40,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:13:40,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:13:40,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:13:40,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:13:40,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:13:40,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:13:40,444 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:13:40,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:13:40,445 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:13:40,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:13:40,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:13:40,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:13:40,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:13:40,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:13:40,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:13:40,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:13:40,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:13:40,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:13:40,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:13:40,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:13:40,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:13:40,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:13:40,448 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 20:13:40,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:13:40,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:13:40,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:13:40,934 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:13:40,934 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:13:40,935 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-24 20:13:41,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bab7d5874/be4fb82bef084f9a9372dbdf47f35d70/FLAG51b823f10 [2020-09-24 20:13:41,573 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:13:41,574 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-24 20:13:41,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bab7d5874/be4fb82bef084f9a9372dbdf47f35d70/FLAG51b823f10 [2020-09-24 20:13:41,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bab7d5874/be4fb82bef084f9a9372dbdf47f35d70 [2020-09-24 20:13:41,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:13:41,885 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:13:41,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:13:41,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:13:41,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:13:41,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:13:41" (1/1) ... [2020-09-24 20:13:41,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:41, skipping insertion in model container [2020-09-24 20:13:41,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:13:41" (1/1) ... [2020-09-24 20:13:41,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:13:41,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:13:42,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:13:42,353 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:13:42,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:13:42,603 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:13:42,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:42 WrapperNode [2020-09-24 20:13:42,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:13:42,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:13:42,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:13:42,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:13:42,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:42" (1/1) ... [2020-09-24 20:13:42,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:42" (1/1) ... [2020-09-24 20:13:42,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:42" (1/1) ... [2020-09-24 20:13:42,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:42" (1/1) ... [2020-09-24 20:13:42,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:42" (1/1) ... [2020-09-24 20:13:42,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:42" (1/1) ... [2020-09-24 20:13:42,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:42" (1/1) ... [2020-09-24 20:13:42,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:13:42,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:13:42,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:13:42,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:13:42,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:42" (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 20:13:42,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:13:42,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:13:42,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:13:42,803 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:13:42,803 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:13:42,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:13:42,804 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:13:42,804 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:13:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:13:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 20:13:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:13:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:13:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:13:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:13:42,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:13:42,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:13:42,808 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:13:42,808 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:13:42,808 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:13:42,808 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:13:42,808 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:13:42,809 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:13:42,809 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:13:42,810 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 20:13:42,810 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:13:42,810 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:13:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:13:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:13:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:13:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:13:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:13:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:13:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:13:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:13:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:13:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:13:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:13:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:13:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:13:42,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:13:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:13:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:13:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:13:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:13:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:13:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:13:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:13:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:13:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:13:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:13:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:13:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:13:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:13:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:13:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:13:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:13:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:13:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:13:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:13:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 20:13:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:13:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:13:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:13:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:13:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:13:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:13:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:13:42,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:13:42,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:13:42,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:13:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:13:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:13:42,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:13:42,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:13:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:13:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:13:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:13:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:13:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:13:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:13:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:13:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:13:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:13:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:13:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:13:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:13:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:13:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 20:13:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:13:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:13:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:13:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:13:43,917 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:13:43,917 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:13:43,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:13:43 BoogieIcfgContainer [2020-09-24 20:13:43,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:13:43,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:13:43,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:13:43,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:13:43,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:13:41" (1/3) ... [2020-09-24 20:13:43,937 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 08:13:43, skipping insertion in model container [2020-09-24 20:13:43,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:42" (2/3) ... [2020-09-24 20:13:43,938 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 08:13:43, skipping insertion in model container [2020-09-24 20:13:43,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:13:43" (3/3) ... [2020-09-24 20:13:43,940 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-09-24 20:13:43,953 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:13:43,967 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:13:43,991 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:13:44,033 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:13:44,034 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:13:44,034 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:13:44,035 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:13:44,035 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:13:44,035 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:13:44,035 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:13:44,036 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:13:44,082 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-24 20:13:44,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 20:13:44,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:13:44,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:13:44,119 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:13:44,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:13:44,127 INFO L82 PathProgramCache]: Analyzing trace with hash -377200977, now seen corresponding path program 1 times [2020-09-24 20:13:44,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:13:44,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179183037] [2020-09-24 20:13:44,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:13:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:44,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:44,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:46,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:49,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:49,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 20:13:49,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:13:49,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 20:13:49,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:49,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:13:49,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:13:49,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 20:13:49,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 20:13:49,990 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:13:49,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:13:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:50,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:50,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:50,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:13:50,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:50,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-09-24 20:13:50,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:50,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:50,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:13:50,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:50,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:13:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:50,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:50,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:50,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:13:50,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:50,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:13:50,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:13:50,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:50,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:13:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:50,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:50,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:50,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:13:50,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:50,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:13:50,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:13:50,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:50,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:13:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:50,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:50,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:50,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:13:50,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:50,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:13:50,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:13:50,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:50,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:13:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:50,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:50,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:50,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:13:50,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:50,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:13:50,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:50,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:50,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:50,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:13:50,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:50,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:13:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:50,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:50,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:50,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:13:50,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:50,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:13:50,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:13:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:13:50,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:50,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 20:13:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:50,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:50,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:50,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:13:50,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:50,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:13:50,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:50,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:13:50,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:13:50,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:13:50,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:50,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 20:13:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:50,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:50,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:13:50,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:13:50,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:13:50,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:13:50,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:13:50,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:13:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:13:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:13:50,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:13:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:13:50,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179183037] [2020-09-24 20:13:50,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:13:50,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:13:50,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313353475] [2020-09-24 20:13:50,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:13:50,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:13:50,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:13:50,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:13:50,697 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 8 states. [2020-09-24 20:13:51,295 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:13:52,874 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:13:53,629 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-24 20:13:54,315 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 20:13:54,704 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:13:55,050 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:13:55,384 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:13:55,730 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:13:57,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:13:57,126 INFO L93 Difference]: Finished difference Result 668 states and 813 transitions. [2020-09-24 20:13:57,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:13:57,131 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-24 20:13:57,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:13:57,156 INFO L225 Difference]: With dead ends: 668 [2020-09-24 20:13:57,156 INFO L226 Difference]: Without dead ends: 464 [2020-09-24 20:13:57,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:13:57,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-09-24 20:13:57,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 414. [2020-09-24 20:13:57,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2020-09-24 20:13:57,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 463 transitions. [2020-09-24 20:13:57,295 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 463 transitions. Word has length 153 [2020-09-24 20:13:57,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:13:57,296 INFO L479 AbstractCegarLoop]: Abstraction has 414 states and 463 transitions. [2020-09-24 20:13:57,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:13:57,296 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 463 transitions. [2020-09-24 20:13:57,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-24 20:13:57,301 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:13:57,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:13:57,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:13:57,302 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:13:57,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:13:57,302 INFO L82 PathProgramCache]: Analyzing trace with hash 2000196711, now seen corresponding path program 1 times [2020-09-24 20:13:57,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:13:57,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238448515] [2020-09-24 20:13:57,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:13:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:13:57,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:57,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:13:57,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:02,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:02,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 20:14:02,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:14:02,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-24 20:14:02,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:02,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:14:02,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:14:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 20:14:02,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:02,714 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:14:02,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:14:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:02,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:02,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:02,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:14:02,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:02,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-24 20:14:02,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:02,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:02,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:02,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:14:02,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:03,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:14:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:03,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:03,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:03,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:03,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:03,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:03,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:03,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:03,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:14:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:03,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:03,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:03,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:03,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:03,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:03,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:03,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:03,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:03,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:03,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:03,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:14:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:03,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:03,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:03,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:03,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:03,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:14:03,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:03,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:03,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:03,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:03,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:03,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:14:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:03,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:03,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:03,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:03,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:03,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:03,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:03,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:03,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:03,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:03,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:03,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 20:14:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:03,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:03,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:03,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:14:03,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:03,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:14:03,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:03,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:03,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:14:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:03,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:03,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 20:14:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:03,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:03,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:03,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:03,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:03,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:03,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:03,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:03,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:03,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:03,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:03,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:14:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:03,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:03,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:03,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:03,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:03,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:03,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:03,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:14:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:03,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:03,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:03,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:03,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:03,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:03,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:03,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:03,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:03,151 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 20:14:03,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238448515] [2020-09-24 20:14:03,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:14:03,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 20:14:03,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114646206] [2020-09-24 20:14:03,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 20:14:03,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:14:03,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 20:14:03,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:14:03,158 INFO L87 Difference]: Start difference. First operand 414 states and 463 transitions. Second operand 5 states. [2020-09-24 20:14:03,676 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:14:05,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:14:05,561 INFO L93 Difference]: Finished difference Result 947 states and 1154 transitions. [2020-09-24 20:14:05,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:14:05,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-09-24 20:14:05,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:14:05,568 INFO L225 Difference]: With dead ends: 947 [2020-09-24 20:14:05,569 INFO L226 Difference]: Without dead ends: 643 [2020-09-24 20:14:05,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:14:05,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2020-09-24 20:14:05,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 583. [2020-09-24 20:14:05,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-09-24 20:14:05,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 677 transitions. [2020-09-24 20:14:05,700 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 677 transitions. Word has length 159 [2020-09-24 20:14:05,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:14:05,702 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 677 transitions. [2020-09-24 20:14:05,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 20:14:05,703 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 677 transitions. [2020-09-24 20:14:05,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-24 20:14:05,709 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:05,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:14:05,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:14:05,710 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:05,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:05,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1971495200, now seen corresponding path program 1 times [2020-09-24 20:14:05,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:05,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26491108] [2020-09-24 20:14:05,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:05,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:07,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:07,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 20:14:07,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:07,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1246 [2020-09-24 20:14:07,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:14:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:14:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:14:07,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:07,416 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:14:07,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:14:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:07,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:07,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:07,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:14:07,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:07,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-24 20:14:07,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:07,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:07,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:07,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:14:07,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:07,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:14:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:07,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:07,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:07,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:07,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:07,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:07,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:07,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:07,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:07,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:07,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:14:07,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:14:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:07,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:07,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:07,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:07,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:07,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:14:07,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:07,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:07,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:07,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:07,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:07,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:14:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:07,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:07,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:07,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:07,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:07,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:14:07,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:07,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:07,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:07,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:07,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:07,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:14:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:07,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:07,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:07,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:07,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:07,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:14:07,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:07,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:07,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:07,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:14:07,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:14:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:07,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:07,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:07,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:14:07,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:07,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:14:07,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:07,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:14:07,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:07,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:14:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:07,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:08,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:08,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:08,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:08,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:08,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:08,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:08,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-24 20:14:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:08,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:08,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:08,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:08,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:08,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:08,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:08,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:08,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:08,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:08,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:08,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 20:14:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:08,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:08,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:08,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:08,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:08,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:14:08,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:08,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:08,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:08,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:08,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:08,073 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 20:14:08,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26491108] [2020-09-24 20:14:08,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:14:08,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:14:08,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295376483] [2020-09-24 20:14:08,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:14:08,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:14:08,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:14:08,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:14:08,078 INFO L87 Difference]: Start difference. First operand 583 states and 677 transitions. Second operand 6 states. [2020-09-24 20:14:08,758 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:14:09,533 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:14:12,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:14:12,172 INFO L93 Difference]: Finished difference Result 1777 states and 2200 transitions. [2020-09-24 20:14:12,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:14:12,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-24 20:14:12,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:14:12,194 INFO L225 Difference]: With dead ends: 1777 [2020-09-24 20:14:12,195 INFO L226 Difference]: Without dead ends: 1304 [2020-09-24 20:14:12,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:14:12,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-09-24 20:14:12,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1181. [2020-09-24 20:14:12,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1181 states. [2020-09-24 20:14:12,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1393 transitions. [2020-09-24 20:14:12,399 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1393 transitions. Word has length 168 [2020-09-24 20:14:12,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:14:12,400 INFO L479 AbstractCegarLoop]: Abstraction has 1181 states and 1393 transitions. [2020-09-24 20:14:12,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:14:12,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1393 transitions. [2020-09-24 20:14:12,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 20:14:12,404 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:12,404 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] [2020-09-24 20:14:12,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:14:12,405 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:12,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:12,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1797665662, now seen corresponding path program 1 times [2020-09-24 20:14:12,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:12,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020862168] [2020-09-24 20:14:12,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 20:14:12,480 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 20:14:12,480 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 20:14:12,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:14:12,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:14:12 BoogieIcfgContainer [2020-09-24 20:14:12,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:14:12,522 INFO L168 Benchmark]: Toolchain (without parser) took 30639.09 ms. Allocated memory was 147.3 MB in the beginning and 582.5 MB in the end (delta: 435.2 MB). Free memory was 101.8 MB in the beginning and 398.6 MB in the end (delta: -296.8 MB). Peak memory consumption was 138.4 MB. Max. memory is 7.1 GB. [2020-09-24 20:14:12,523 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 20:14:12,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.38 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 174.6 MB in the end (delta: -73.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-09-24 20:14:12,527 INFO L168 Benchmark]: Boogie Preprocessor took 108.50 ms. Allocated memory is still 204.5 MB. Free memory was 174.6 MB in the beginning and 169.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-24 20:14:12,533 INFO L168 Benchmark]: RCFGBuilder took 1216.70 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 169.9 MB in the beginning and 176.7 MB in the end (delta: -6.8 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-09-24 20:14:12,534 INFO L168 Benchmark]: TraceAbstraction took 28588.14 ms. Allocated memory was 235.9 MB in the beginning and 582.5 MB in the end (delta: 346.6 MB). Free memory was 175.3 MB in the beginning and 398.6 MB in the end (delta: -223.3 MB). Peak memory consumption was 123.2 MB. Max. memory is 7.1 GB. [2020-09-24 20:14:12,547 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.38 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 174.6 MB in the end (delta: -73.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.50 ms. Allocated memory is still 204.5 MB. Free memory was 174.6 MB in the beginning and 169.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1216.70 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 169.9 MB in the beginning and 176.7 MB in the end (delta: -6.8 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28588.14 ms. Allocated memory was 235.9 MB in the beginning and 582.5 MB in the end (delta: 346.6 MB). Free memory was 175.3 MB in the beginning and 398.6 MB in the end (delta: -223.3 MB). Peak memory consumption was 123.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) [L804] CALL waterRise() [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 [L804] RET waterRise() [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L770] COND FALSE !(\read(pumpRunning)) [L777] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND FALSE !(\read(systemActive)) [L619] CALL __utac_acc__Specification3_spec__1() [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L163] CALL, EXPR isMethaneLevelCritical() [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); [L163] RET, EXPR isMethaneLevelCritical() [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L169] CALL, EXPR getWaterLevel() [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); [L169] RET, EXPR getWaterLevel() [L169] tmp___0 = getWaterLevel() [L171] COND TRUE tmp___0 == 2 [L173] CALL, EXPR isPumpRunning() [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); [L173] RET, EXPR isPumpRunning() [L173] tmp___1 = isPumpRunning() [L175] COND FALSE !(\read(tmp___1)) [L179] CALL __automaton_fail() [L148] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 819 SDtfs, 1619 SDslu, 1057 SDs, 0 SdLazy, 2424 SolverSat, 552 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 64 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1181occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 233 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 657 NumberOfCodeBlocks, 657 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 477 ConstructedInterpolants, 0 QuantifiedInterpolants, 229256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...