/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:44:27,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:44:27,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:44:27,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:44:27,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:44:27,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:44:27,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:44:27,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:44:27,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:44:27,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:44:27,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:44:27,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:44:27,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:44:27,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:44:27,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:44:27,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:44:27,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:44:27,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:44:27,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:44:27,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:44:27,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:44:27,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:44:27,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:44:27,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:44:27,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:44:27,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:44:27,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:44:27,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:44:27,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:44:27,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:44:27,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:44:27,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:44:27,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:44:27,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:44:27,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:44:27,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:44:27,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:44:27,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:44:27,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:44:27,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:44:27,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:44:27,888 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 23:44:27,910 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:44:27,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:44:27,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:44:27,915 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:44:27,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:44:27,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:44:27,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:44:27,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:44:27,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:44:27,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:44:27,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:44:27,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:44:27,918 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:44:27,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:44:27,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:44:27,920 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:44:27,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:44:27,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:44:27,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:44:27,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:44:27,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:44:27,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:44:27,922 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:44:28,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:44:28,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:44:28,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:44:28,437 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:44:28,438 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:44:28,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-10-23 23:44:28,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cf2e90e5/7bc5f8c85a2f4446b3ddf134f255509e/FLAG08f8563de [2020-10-23 23:44:29,246 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:44:29,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-10-23 23:44:29,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cf2e90e5/7bc5f8c85a2f4446b3ddf134f255509e/FLAG08f8563de [2020-10-23 23:44:29,493 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cf2e90e5/7bc5f8c85a2f4446b3ddf134f255509e [2020-10-23 23:44:29,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:44:29,505 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:44:29,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:44:29,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:44:29,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:44:29,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:44:29" (1/1) ... [2020-10-23 23:44:29,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@584f2021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:29, skipping insertion in model container [2020-10-23 23:44:29,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:44:29" (1/1) ... [2020-10-23 23:44:29,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:44:29,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:44:29,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:44:29,952 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:44:30,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:44:30,118 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:44:30,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:30 WrapperNode [2020-10-23 23:44:30,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:44:30,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:44:30,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:44:30,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:44:30,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:30" (1/1) ... [2020-10-23 23:44:30,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:30" (1/1) ... [2020-10-23 23:44:30,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:30" (1/1) ... [2020-10-23 23:44:30,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:30" (1/1) ... [2020-10-23 23:44:30,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:30" (1/1) ... [2020-10-23 23:44:30,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:30" (1/1) ... [2020-10-23 23:44:30,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:30" (1/1) ... [2020-10-23 23:44:30,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:44:30,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:44:30,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:44:30,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:44:30,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-23 23:44:30,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:44:30,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:44:30,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:44:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:44:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:44:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:44:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:44:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:44:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:44:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:44:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 23:44:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 23:44:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:44:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:44:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 23:44:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:44:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:44:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:44:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:44:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:44:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:44:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 23:44:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 23:44:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 23:44:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 23:44:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:44:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:44:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:44:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:44:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:44:30,354 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:44:30,354 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:44:30,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:44:30,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:44:30,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:44:30,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:44:30,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:44:30,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:44:30,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:44:30,355 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:44:30,355 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:44:30,355 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:44:30,356 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:44:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:44:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:44:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:44:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:44:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:44:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:44:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:44:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:44:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:44:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:44:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:44:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:44:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 23:44:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 23:44:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:44:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:44:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:44:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:44:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:44:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 23:44:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 23:44:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:44:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:44:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:44:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 23:44:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 23:44:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 23:44:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:44:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:44:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:44:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:44:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:44:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:44:30,361 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:44:30,361 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:44:30,361 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:44:30,361 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:44:30,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:44:30,361 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:44:30,362 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:44:30,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:44:30,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:44:30,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:44:30,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:44:30,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:44:30,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:44:30,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:44:30,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:44:30,363 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:44:30,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:44:30,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:44:30,364 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:44:30,364 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:44:30,364 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:44:30,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:44:30,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:44:30,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:44:32,011 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:44:32,012 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:44:32,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:44:32 BoogieIcfgContainer [2020-10-23 23:44:32,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:44:32,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:44:32,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:44:32,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:44:32,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:44:29" (1/3) ... [2020-10-23 23:44:32,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5067f77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:44:32, skipping insertion in model container [2020-10-23 23:44:32,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:30" (2/3) ... [2020-10-23 23:44:32,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5067f77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:44:32, skipping insertion in model container [2020-10-23 23:44:32,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:44:32" (3/3) ... [2020-10-23 23:44:32,025 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2020-10-23 23:44:32,036 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:44:32,042 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:44:32,056 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:44:32,080 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:44:32,080 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:44:32,080 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:44:32,080 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:44:32,081 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:44:32,081 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:44:32,081 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:44:32,081 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:44:32,105 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states. [2020-10-23 23:44:32,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 23:44:32,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:32,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:32,128 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:44:32,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:32,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1598289080, now seen corresponding path program 1 times [2020-10-23 23:44:32,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:32,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230269844] [2020-10-23 23:44:32,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:33,268 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:33,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:33,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:33,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:33,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:33,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:33,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:44:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:33,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:44:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:33,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:44:33,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230269844] [2020-10-23 23:44:33,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:33,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:44:33,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487051438] [2020-10-23 23:44:33,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:44:33,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:33,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:44:33,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:44:33,458 INFO L87 Difference]: Start difference. First operand 337 states. Second operand 3 states. [2020-10-23 23:44:36,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:36,199 INFO L93 Difference]: Finished difference Result 522 states and 620 transitions. [2020-10-23 23:44:36,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:44:36,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 23:44:36,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:36,219 INFO L225 Difference]: With dead ends: 522 [2020-10-23 23:44:36,219 INFO L226 Difference]: Without dead ends: 321 [2020-10-23 23:44:36,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:44:36,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-23 23:44:36,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 277. [2020-10-23 23:44:36,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-23 23:44:36,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 301 transitions. [2020-10-23 23:44:36,424 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 301 transitions. Word has length 148 [2020-10-23 23:44:36,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:36,428 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 301 transitions. [2020-10-23 23:44:36,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:44:36,428 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 301 transitions. [2020-10-23 23:44:36,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 23:44:36,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:36,445 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] [2020-10-23 23:44:36,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:44:36,445 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:44:36,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:36,449 INFO L82 PathProgramCache]: Analyzing trace with hash -201721292, now seen corresponding path program 1 times [2020-10-23 23:44:36,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:36,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382354898] [2020-10-23 23:44:36,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:37,297 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:37,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:37,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:37,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:37,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:37,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:37,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:44:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:37,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:44:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:44:37,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382354898] [2020-10-23 23:44:37,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:37,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:44:37,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993930891] [2020-10-23 23:44:37,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:44:37,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:37,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:44:37,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:44:37,415 INFO L87 Difference]: Start difference. First operand 277 states and 301 transitions. Second operand 4 states. [2020-10-23 23:44:38,728 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:40,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:40,682 INFO L93 Difference]: Finished difference Result 426 states and 479 transitions. [2020-10-23 23:44:40,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:44:40,687 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 23:44:40,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:40,691 INFO L225 Difference]: With dead ends: 426 [2020-10-23 23:44:40,691 INFO L226 Difference]: Without dead ends: 304 [2020-10-23 23:44:40,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:44:40,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-10-23 23:44:40,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 267. [2020-10-23 23:44:40,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-10-23 23:44:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 288 transitions. [2020-10-23 23:44:40,825 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 288 transitions. Word has length 149 [2020-10-23 23:44:40,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:40,826 INFO L481 AbstractCegarLoop]: Abstraction has 267 states and 288 transitions. [2020-10-23 23:44:40,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:44:40,826 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 288 transitions. [2020-10-23 23:44:40,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 23:44:40,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:40,829 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] [2020-10-23 23:44:40,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:44:40,830 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:44:40,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:40,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1457720232, now seen corresponding path program 1 times [2020-10-23 23:44:40,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:40,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844992361] [2020-10-23 23:44:40,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,667 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:41,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 23:44:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 23:44:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 23:44:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:44:41,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844992361] [2020-10-23 23:44:41,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:41,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:44:41,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370916070] [2020-10-23 23:44:41,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:44:41,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:41,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:44:41,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:44:41,865 INFO L87 Difference]: Start difference. First operand 267 states and 288 transitions. Second operand 10 states. [2020-10-23 23:44:43,006 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:43,960 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:44,654 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:44:45,433 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:46,215 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:44:46,966 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:48,949 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:54,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:54,027 INFO L93 Difference]: Finished difference Result 727 states and 845 transitions. [2020-10-23 23:44:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:44:54,033 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 23:44:54,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:54,039 INFO L225 Difference]: With dead ends: 727 [2020-10-23 23:44:54,039 INFO L226 Difference]: Without dead ends: 575 [2020-10-23 23:44:54,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 23:44:54,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-10-23 23:44:54,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 478. [2020-10-23 23:44:54,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-10-23 23:44:54,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 534 transitions. [2020-10-23 23:44:54,295 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 534 transitions. Word has length 162 [2020-10-23 23:44:54,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:54,296 INFO L481 AbstractCegarLoop]: Abstraction has 478 states and 534 transitions. [2020-10-23 23:44:54,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:44:54,296 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 534 transitions. [2020-10-23 23:44:54,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 23:44:54,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:54,300 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] [2020-10-23 23:44:54,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:44:54,301 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:44:54,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:54,301 INFO L82 PathProgramCache]: Analyzing trace with hash -536296316, now seen corresponding path program 1 times [2020-10-23 23:44:54,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:54,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1310575814] [2020-10-23 23:44:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:55,059 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:55,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:55,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:55,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:55,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:55,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:55,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 23:44:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:55,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 23:44:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:55,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 23:44:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:55,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:44:55,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1310575814] [2020-10-23 23:44:55,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:55,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:44:55,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753209935] [2020-10-23 23:44:55,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:44:55,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:55,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:44:55,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:44:55,254 INFO L87 Difference]: Start difference. First operand 478 states and 534 transitions. Second operand 9 states. [2020-10-23 23:44:56,309 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:58,918 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:59,698 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:45:00,692 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:01,527 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:02,291 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:45:03,020 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:03,813 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:05,074 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:07,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:07,236 INFO L93 Difference]: Finished difference Result 1321 states and 1579 transitions. [2020-10-23 23:45:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:45:07,237 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-10-23 23:45:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:07,244 INFO L225 Difference]: With dead ends: 1321 [2020-10-23 23:45:07,245 INFO L226 Difference]: Without dead ends: 958 [2020-10-23 23:45:07,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-23 23:45:07,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-10-23 23:45:07,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 801. [2020-10-23 23:45:07,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 801 states. [2020-10-23 23:45:07,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 908 transitions. [2020-10-23 23:45:07,607 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 908 transitions. Word has length 167 [2020-10-23 23:45:07,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:07,608 INFO L481 AbstractCegarLoop]: Abstraction has 801 states and 908 transitions. [2020-10-23 23:45:07,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:45:07,608 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 908 transitions. [2020-10-23 23:45:07,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 23:45:07,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:07,612 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] [2020-10-23 23:45:07,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:45:07,613 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:45:07,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:07,614 INFO L82 PathProgramCache]: Analyzing trace with hash 401659442, now seen corresponding path program 1 times [2020-10-23 23:45:07,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:07,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14758375] [2020-10-23 23:45:07,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:08,330 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:45:08,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:45:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:08,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:45:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:08,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:45:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:08,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:45:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:08,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:45:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:08,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:45:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:08,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 23:45:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:08,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 23:45:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:08,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 23:45:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:08,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:45:08,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14758375] [2020-10-23 23:45:08,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:45:08,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:45:08,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049785874] [2020-10-23 23:45:08,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:45:08,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:45:08,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:45:08,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:45:08,528 INFO L87 Difference]: Start difference. First operand 801 states and 908 transitions. Second operand 10 states. [2020-10-23 23:45:09,578 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:12,157 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:12,929 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:45:13,748 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:14,472 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:45:15,136 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:16,696 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:17,411 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:18,308 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:20,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:20,990 INFO L93 Difference]: Finished difference Result 2065 states and 2540 transitions. [2020-10-23 23:45:20,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 23:45:20,991 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-10-23 23:45:20,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:21,023 INFO L225 Difference]: With dead ends: 2065 [2020-10-23 23:45:21,023 INFO L226 Difference]: Without dead ends: 1379 [2020-10-23 23:45:21,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 23:45:21,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2020-10-23 23:45:21,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1111. [2020-10-23 23:45:21,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1111 states. [2020-10-23 23:45:21,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1279 transitions. [2020-10-23 23:45:21,471 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1279 transitions. Word has length 172 [2020-10-23 23:45:21,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:21,471 INFO L481 AbstractCegarLoop]: Abstraction has 1111 states and 1279 transitions. [2020-10-23 23:45:21,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:45:21,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1279 transitions. [2020-10-23 23:45:21,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-23 23:45:21,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:21,476 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, 1, 1, 1, 1, 1, 1] [2020-10-23 23:45:21,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:45:21,477 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:45:21,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:21,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1637447794, now seen corresponding path program 1 times [2020-10-23 23:45:21,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:21,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236542103] [2020-10-23 23:45:21,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,133 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:45:22,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:45:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:45:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:45:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:45:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:45:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:45:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 23:45:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 23:45:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:45:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:45:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 23:45:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 23:45:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:45:22,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236542103] [2020-10-23 23:45:22,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:45:22,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 23:45:22,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379561360] [2020-10-23 23:45:22,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 23:45:22,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:45:22,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 23:45:22,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:45:22,437 INFO L87 Difference]: Start difference. First operand 1111 states and 1279 transitions. Second operand 11 states. [2020-10-23 23:45:25,221 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:26,070 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:45:26,871 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:45:27,625 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:28,420 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:29,137 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:32,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:32,779 INFO L93 Difference]: Finished difference Result 2724 states and 3410 transitions. [2020-10-23 23:45:32,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 23:45:32,780 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 205 [2020-10-23 23:45:32,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:32,793 INFO L225 Difference]: With dead ends: 2724 [2020-10-23 23:45:32,793 INFO L226 Difference]: Without dead ends: 1728 [2020-10-23 23:45:32,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 23:45:32,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2020-10-23 23:45:33,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1149. [2020-10-23 23:45:33,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1149 states. [2020-10-23 23:45:33,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1319 transitions. [2020-10-23 23:45:33,309 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1319 transitions. Word has length 205 [2020-10-23 23:45:33,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:33,310 INFO L481 AbstractCegarLoop]: Abstraction has 1149 states and 1319 transitions. [2020-10-23 23:45:33,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 23:45:33,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1319 transitions. [2020-10-23 23:45:33,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-23 23:45:33,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:33,315 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, 1, 1, 1, 1, 1, 1] [2020-10-23 23:45:33,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:45:33,316 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:45:33,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:33,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1512243410, now seen corresponding path program 1 times [2020-10-23 23:45:33,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:33,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211451228] [2020-10-23 23:45:33,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,036 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:45:34,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:45:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:45:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:45:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:45:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:45:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:45:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 23:45:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 23:45:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:45:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:45:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 23:45:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 23:45:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:45:34,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211451228] [2020-10-23 23:45:34,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:45:34,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 23:45:34,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442835794] [2020-10-23 23:45:34,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 23:45:34,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:45:34,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 23:45:34,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 23:45:34,394 INFO L87 Difference]: Start difference. First operand 1149 states and 1319 transitions. Second operand 14 states. [2020-10-23 23:45:35,696 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:36,454 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:45:37,186 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:37,895 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:38,582 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:40,719 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:41,529 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:42,363 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:43,211 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:43,968 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:48,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:48,785 INFO L93 Difference]: Finished difference Result 2806 states and 3561 transitions. [2020-10-23 23:45:48,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 23:45:48,787 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 205 [2020-10-23 23:45:48,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:48,799 INFO L225 Difference]: With dead ends: 2806 [2020-10-23 23:45:48,799 INFO L226 Difference]: Without dead ends: 1772 [2020-10-23 23:45:48,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 23:45:48,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2020-10-23 23:45:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1173. [2020-10-23 23:45:49,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1173 states. [2020-10-23 23:45:49,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1343 transitions. [2020-10-23 23:45:49,412 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1343 transitions. Word has length 205 [2020-10-23 23:45:49,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:49,413 INFO L481 AbstractCegarLoop]: Abstraction has 1173 states and 1343 transitions. [2020-10-23 23:45:49,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 23:45:49,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1343 transitions. [2020-10-23 23:45:49,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-23 23:45:49,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:49,418 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, 1, 1, 1, 1, 1, 1] [2020-10-23 23:45:49,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 23:45:49,418 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:45:49,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:49,419 INFO L82 PathProgramCache]: Analyzing trace with hash -2092229745, now seen corresponding path program 1 times [2020-10-23 23:45:49,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:49,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820963944] [2020-10-23 23:45:49,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,182 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:45:50,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:45:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:45:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:45:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:45:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:45:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:45:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 23:45:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 23:45:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:45:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:45:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 23:45:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 23:45:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:50,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:45:50,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820963944] [2020-10-23 23:45:50,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:45:50,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 23:45:50,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124808503] [2020-10-23 23:45:50,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 23:45:50,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:45:50,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 23:45:50,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 23:45:50,450 INFO L87 Difference]: Start difference. First operand 1173 states and 1343 transitions. Second operand 8 states. [2020-10-23 23:45:51,609 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:52,929 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:46:01,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:46:01,716 INFO L93 Difference]: Finished difference Result 4337 states and 5555 transitions. [2020-10-23 23:46:01,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-23 23:46:01,717 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 205 [2020-10-23 23:46:01,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:46:01,738 INFO L225 Difference]: With dead ends: 4337 [2020-10-23 23:46:01,738 INFO L226 Difference]: Without dead ends: 3279 [2020-10-23 23:46:01,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-10-23 23:46:01,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2020-10-23 23:46:02,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2353. [2020-10-23 23:46:02,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2353 states. [2020-10-23 23:46:02,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 2723 transitions. [2020-10-23 23:46:02,808 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 2723 transitions. Word has length 205 [2020-10-23 23:46:02,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:46:02,809 INFO L481 AbstractCegarLoop]: Abstraction has 2353 states and 2723 transitions. [2020-10-23 23:46:02,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 23:46:02,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 2723 transitions. [2020-10-23 23:46:02,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-23 23:46:02,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:46:02,816 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:46:02,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 23:46:02,816 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:46:02,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:46:02,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1544604226, now seen corresponding path program 1 times [2020-10-23 23:46:02,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:46:02,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302711419] [2020-10-23 23:46:02,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:46:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:46:02,921 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:46:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:46:02,985 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:46:03,196 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:46:03,196 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:46:03,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 23:46:03,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:46:03 BoogieIcfgContainer [2020-10-23 23:46:03,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:46:03,511 INFO L168 Benchmark]: Toolchain (without parser) took 94011.29 ms. Allocated memory was 153.1 MB in the beginning and 723.5 MB in the end (delta: 570.4 MB). Free memory was 128.0 MB in the beginning and 565.7 MB in the end (delta: -437.7 MB). Peak memory consumption was 133.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:46:03,517 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:46:03,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.99 ms. Allocated memory is still 153.1 MB. Free memory was 127.4 MB in the beginning and 105.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:46:03,522 INFO L168 Benchmark]: Boogie Preprocessor took 130.58 ms. Allocated memory is still 153.1 MB. Free memory was 105.6 MB in the beginning and 133.8 MB in the end (delta: -28.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:46:03,523 INFO L168 Benchmark]: RCFGBuilder took 1760.59 ms. Allocated memory is still 153.1 MB. Free memory was 133.8 MB in the beginning and 87.8 MB in the end (delta: 46.0 MB). Peak memory consumption was 64.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:46:03,523 INFO L168 Benchmark]: TraceAbstraction took 91492.13 ms. Allocated memory was 153.1 MB in the beginning and 723.5 MB in the end (delta: 570.4 MB). Free memory was 87.8 MB in the beginning and 565.7 MB in the end (delta: -477.9 MB). Peak memory consumption was 92.5 MB. Max. memory is 8.0 GB. [2020-10-23 23:46:03,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 607.99 ms. Allocated memory is still 153.1 MB. Free memory was 127.4 MB in the beginning and 105.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 130.58 ms. Allocated memory is still 153.1 MB. Free memory was 105.6 MB in the beginning and 133.8 MB in the end (delta: -28.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1760.59 ms. Allocated memory is still 153.1 MB. Free memory was 133.8 MB in the beginning and 87.8 MB in the end (delta: 46.0 MB). Peak memory consumption was 64.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 91492.13 ms. Allocated memory was 153.1 MB in the beginning and 723.5 MB in the end (delta: 570.4 MB). Free memory was 87.8 MB in the beginning and 565.7 MB in the end (delta: -477.9 MB). Peak memory consumption was 92.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L50] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=153, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=147, cleanupTimeShifts=180, head={182:172}, methaneLevelCritical=153, pumpRunning=141, systemActive=140, waterLevel=1] [L51] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=153, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=147, cleanupTimeShifts=180, head={182:172}, methaneLevelCritical=0, pumpRunning=141, systemActive=140, waterLevel=1] [L160] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=153, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=147, cleanupTimeShifts=180, head={182:172}, methaneLevelCritical=0, pumpRunning=0, systemActive=140, waterLevel=1] [L161] int systemActive = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=153, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=147, cleanupTimeShifts=180, head={182:172}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L460] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=172, \old(methaneLevelCritical)=153, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=147, cleanupTimeShifts=4, head={182:172}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L754] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=153, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=147, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L537] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L541] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L542] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L543] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L977] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L980] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L981] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L543] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L543] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L545] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L547] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L548] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L392] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L393] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L394] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L395] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L396] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L399] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L401] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L403] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L409] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L411] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L413] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L413] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L419] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L421] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L423] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L80] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L423] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L429] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L431] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L433] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L376] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L433] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L448] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L168] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L175] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L177] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L223] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L226] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L241] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L197] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L200] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L202] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L320] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L321] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L322] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L326] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L130] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L133] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L137] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L138] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L326] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L326] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L328] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L331] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L333] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L334] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L202] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L202] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L204] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L206] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L251] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L206] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L241] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L177] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L183] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L560] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L561] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L565] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L89] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L92] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L93] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L565] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L565] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L567] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L569] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L275] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L278] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L279] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L569] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L569] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L571] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L573] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L385] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product52.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 660 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 91.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 78.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2148 SDtfs, 4737 SDslu, 4494 SDs, 0 SdLazy, 9426 SolverSat, 1558 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 36.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 333 GetRequests, 202 SyntacticMatches, 3 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 37.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2353occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 2707 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 1623 NumberOfCodeBlocks, 1623 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1405 ConstructedInterpolants, 0 QuantifiedInterpolants, 633421 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...