/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_spec2_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:50:34,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:50:34,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:50:34,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:50:34,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:50:34,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:50:34,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:50:34,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:50:34,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:50:34,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:50:34,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:50:34,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:50:34,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:50:34,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:50:34,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:50:34,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:50:34,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:50:34,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:50:34,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:50:34,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:50:34,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:50:34,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:50:34,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:50:34,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:50:34,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:50:34,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:50:34,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:50:34,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:50:34,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:50:34,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:50:34,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:50:34,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:50:34,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:50:34,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:50:34,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:50:34,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:50:34,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:50:34,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:50:34,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:50:34,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:50:34,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:50:34,645 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 23:50:34,668 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:50:34,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:50:34,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:50:34,674 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:50:34,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:50:34,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:50:34,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:50:34,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:50:34,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:50:34,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:50:34,676 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:50:34,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:50:34,677 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:50:34,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:50:34,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:50:34,678 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:50:34,678 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:50:34,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:50:34,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:50:34,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:50:34,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:50:34,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:50:34,679 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:50:35,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:50:35,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:50:35,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:50:35,106 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:50:35,107 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:50:35,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-10-23 23:50:35,184 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3065968/1b00519325754bd2b97626eae977a51f/FLAG99ba3d486 [2020-10-23 23:50:35,885 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:50:35,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-10-23 23:50:35,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3065968/1b00519325754bd2b97626eae977a51f/FLAG99ba3d486 [2020-10-23 23:50:36,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3065968/1b00519325754bd2b97626eae977a51f [2020-10-23 23:50:36,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:50:36,176 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:50:36,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:50:36,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:50:36,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:50:36,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:50:36" (1/1) ... [2020-10-23 23:50:36,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671a465f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:50:36, skipping insertion in model container [2020-10-23 23:50:36,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:50:36" (1/1) ... [2020-10-23 23:50:36,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:50:36,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:50:36,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:50:36,686 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:50:36,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:50:36,882 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:50:36,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:50:36 WrapperNode [2020-10-23 23:50:36,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:50:36,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:50:36,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:50:36,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:50:36,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:50:36" (1/1) ... [2020-10-23 23:50:36,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:50:36" (1/1) ... [2020-10-23 23:50:36,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:50:36" (1/1) ... [2020-10-23 23:50:36,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:50:36" (1/1) ... [2020-10-23 23:50:36,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:50:36" (1/1) ... [2020-10-23 23:50:36,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:50:36" (1/1) ... [2020-10-23 23:50:36,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:50:36" (1/1) ... [2020-10-23 23:50:36,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:50:36,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:50:36,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:50:36,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:50:36,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:50:36" (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 23:50:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:50:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:50:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:50:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:50:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-10-23 23:50:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-10-23 23:50:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:50:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:50:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:50:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:50:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:50:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:50:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:50:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:50:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:50:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 23:50:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:50:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:50:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:50:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:50:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:50:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 23:50:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:50:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:50:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:50:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:50:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:50:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:50:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 23:50:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:50:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:50:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:50:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:50:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:50:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:50:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:50:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:50:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:50:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:50:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:50:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:50:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:50:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:50:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:50:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:50:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:50:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:50:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:50:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:50:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-10-23 23:50:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-10-23 23:50:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:50:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:50:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:50:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:50:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:50:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:50:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:50:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:50:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:50:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:50:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:50:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:50:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:50:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:50:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:50:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:50:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:50:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 23:50:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:50:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:50:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:50:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:50:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:50:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:50:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 23:50:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 23:50:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:50:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:50:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:50:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:50:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:50:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:50:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:50:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:50:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:50:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:50:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:50:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:50:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:50:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:50:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:50:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:50:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:50:38,800 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:50:38,800 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:50:38,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:50:38 BoogieIcfgContainer [2020-10-23 23:50:38,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:50:38,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:50:38,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:50:38,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:50:38,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:50:36" (1/3) ... [2020-10-23 23:50:38,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9dbae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:50:38, skipping insertion in model container [2020-10-23 23:50:38,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:50:36" (2/3) ... [2020-10-23 23:50:38,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9dbae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:50:38, skipping insertion in model container [2020-10-23 23:50:38,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:50:38" (3/3) ... [2020-10-23 23:50:38,813 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2020-10-23 23:50:38,826 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:50:38,832 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:50:38,846 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:50:38,871 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:50:38,871 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:50:38,871 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:50:38,871 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:50:38,871 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:50:38,872 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:50:38,872 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:50:38,872 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:50:38,895 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-10-23 23:50:38,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-23 23:50:38,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:50:38,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:50:38,917 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 23:50:38,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:50:38,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1636153419, now seen corresponding path program 1 times [2020-10-23 23:50:38,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:50:38,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703779900] [2020-10-23 23:50:38,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:50:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:39,897 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:50:39,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:50:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:40,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:50:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:40,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:50:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:40,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:50:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:40,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:50:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:40,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:50:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:40,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 23:50:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:40,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 23:50:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:40,142 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 23:50:40,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703779900] [2020-10-23 23:50:40,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:50:40,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:50:40,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300422294] [2020-10-23 23:50:40,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:50:40,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:50:40,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:50:40,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:50:40,169 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 4 states. [2020-10-23 23:50:41,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:50:41,669 INFO L93 Difference]: Finished difference Result 478 states and 563 transitions. [2020-10-23 23:50:41,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 23:50:41,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-23 23:50:41,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:50:41,688 INFO L225 Difference]: With dead ends: 478 [2020-10-23 23:50:41,689 INFO L226 Difference]: Without dead ends: 306 [2020-10-23 23:50:41,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:50:41,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-10-23 23:50:41,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 259. [2020-10-23 23:50:41,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-10-23 23:50:41,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 280 transitions. [2020-10-23 23:50:41,875 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 280 transitions. Word has length 154 [2020-10-23 23:50:41,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:50:41,878 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 280 transitions. [2020-10-23 23:50:41,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:50:41,878 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 280 transitions. [2020-10-23 23:50:41,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-23 23:50:41,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:50:41,894 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] [2020-10-23 23:50:41,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:50:41,895 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 23:50:41,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:50:41,896 INFO L82 PathProgramCache]: Analyzing trace with hash -79345194, now seen corresponding path program 1 times [2020-10-23 23:50:41,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:50:41,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792041080] [2020-10-23 23:50:41,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:50:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:42,358 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:50:42,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:50:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:42,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:50:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:42,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:50:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:42,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:50:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:42,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:50:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:42,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:50:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:42,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 23:50:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:42,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 23:50:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:42,499 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 23:50:42,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792041080] [2020-10-23 23:50:42,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:50:42,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 23:50:42,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857418811] [2020-10-23 23:50:42,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 23:50:42,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:50:42,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 23:50:42,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:50:42,503 INFO L87 Difference]: Start difference. First operand 259 states and 280 transitions. Second operand 5 states. [2020-10-23 23:50:43,190 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:50:44,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:50:44,112 INFO L93 Difference]: Finished difference Result 404 states and 454 transitions. [2020-10-23 23:50:44,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 23:50:44,112 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-23 23:50:44,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:50:44,122 INFO L225 Difference]: With dead ends: 404 [2020-10-23 23:50:44,122 INFO L226 Difference]: Without dead ends: 295 [2020-10-23 23:50:44,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 23:50:44,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-23 23:50:44,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 249. [2020-10-23 23:50:44,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-23 23:50:44,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-10-23 23:50:44,221 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 155 [2020-10-23 23:50:44,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:50:44,221 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-10-23 23:50:44,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 23:50:44,222 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-10-23 23:50:44,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-23 23:50:44,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:50:44,224 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] [2020-10-23 23:50:44,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:50:44,225 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 23:50:44,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:50:44,226 INFO L82 PathProgramCache]: Analyzing trace with hash -187807046, now seen corresponding path program 1 times [2020-10-23 23:50:44,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:50:44,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041080042] [2020-10-23 23:50:44,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:50:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:44,614 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:50:44,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:50:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:44,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:50:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:44,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:50:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:44,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:50:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:44,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:50:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:44,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:50:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:44,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 23:50:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:44,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 23:50:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:44,822 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 23:50:44,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041080042] [2020-10-23 23:50:44,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:50:44,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:50:44,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043720871] [2020-10-23 23:50:44,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:50:44,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:50:44,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:50:44,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:50:44,828 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 10 states. [2020-10-23 23:50:45,492 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:50:45,843 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:50:46,141 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:50:46,435 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:46,773 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:50:47,066 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:48,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:50:48,642 INFO L93 Difference]: Finished difference Result 424 states and 480 transitions. [2020-10-23 23:50:48,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:50:48,643 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-23 23:50:48,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:50:48,650 INFO L225 Difference]: With dead ends: 424 [2020-10-23 23:50:48,650 INFO L226 Difference]: Without dead ends: 295 [2020-10-23 23:50:48,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 23:50:48,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-23 23:50:48,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 249. [2020-10-23 23:50:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-23 23:50:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 266 transitions. [2020-10-23 23:50:48,787 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 266 transitions. Word has length 164 [2020-10-23 23:50:48,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:50:48,789 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 266 transitions. [2020-10-23 23:50:48,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:50:48,790 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 266 transitions. [2020-10-23 23:50:48,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 23:50:48,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:50:48,792 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 23:50:48,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:50:48,793 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 23:50:48,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:50:48,794 INFO L82 PathProgramCache]: Analyzing trace with hash -971602027, now seen corresponding path program 1 times [2020-10-23 23:50:48,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:50:48,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202531793] [2020-10-23 23:50:48,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:50:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:49,167 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:50:49,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:50:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:49,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:50:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:49,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:50:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:49,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:50:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:49,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:50:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:49,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:50:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:49,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:50:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:49,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:50:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:49,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-23 23:50:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:49,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 23:50:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:49,346 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 23:50:49,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202531793] [2020-10-23 23:50:49,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:50:49,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 23:50:49,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035001980] [2020-10-23 23:50:49,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 23:50:49,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:50:49,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 23:50:49,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 23:50:49,349 INFO L87 Difference]: Start difference. First operand 249 states and 266 transitions. Second operand 7 states. [2020-10-23 23:50:49,854 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:50:51,350 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:50:52,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:50:52,035 INFO L93 Difference]: Finished difference Result 556 states and 637 transitions. [2020-10-23 23:50:52,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 23:50:52,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-10-23 23:50:52,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:50:52,042 INFO L225 Difference]: With dead ends: 556 [2020-10-23 23:50:52,042 INFO L226 Difference]: Without dead ends: 427 [2020-10-23 23:50:52,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-23 23:50:52,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-23 23:50:52,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 354. [2020-10-23 23:50:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-10-23 23:50:52,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 383 transitions. [2020-10-23 23:50:52,229 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 383 transitions. Word has length 172 [2020-10-23 23:50:52,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:50:52,230 INFO L481 AbstractCegarLoop]: Abstraction has 354 states and 383 transitions. [2020-10-23 23:50:52,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 23:50:52,230 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 383 transitions. [2020-10-23 23:50:52,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-23 23:50:52,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:50:52,232 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] [2020-10-23 23:50:52,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:50:52,233 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 23:50:52,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:50:52,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1803162612, now seen corresponding path program 1 times [2020-10-23 23:50:52,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:50:52,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696788252] [2020-10-23 23:50:52,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:50:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,579 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:50:52,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:50:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:50:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:50:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:50:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:50:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:50:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:50:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:50:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:50:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:50:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 23:50:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 23:50:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:52,811 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 23:50:52,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696788252] [2020-10-23 23:50:52,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:50:52,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:50:52,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619574157] [2020-10-23 23:50:52,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:50:52,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:50:52,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:50:52,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:50:52,815 INFO L87 Difference]: Start difference. First operand 354 states and 383 transitions. Second operand 10 states. [2020-10-23 23:50:53,335 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:50:54,439 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:54,756 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:50:55,075 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:50:55,360 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:55,697 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-23 23:50:55,979 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:50:57,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:50:57,820 INFO L93 Difference]: Finished difference Result 883 states and 1040 transitions. [2020-10-23 23:50:57,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-23 23:50:57,826 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-10-23 23:50:57,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:50:57,834 INFO L225 Difference]: With dead ends: 883 [2020-10-23 23:50:57,835 INFO L226 Difference]: Without dead ends: 649 [2020-10-23 23:50:57,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-23 23:50:57,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2020-10-23 23:50:58,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 545. [2020-10-23 23:50:58,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-10-23 23:50:58,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 601 transitions. [2020-10-23 23:50:58,089 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 601 transitions. Word has length 196 [2020-10-23 23:50:58,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:50:58,090 INFO L481 AbstractCegarLoop]: Abstraction has 545 states and 601 transitions. [2020-10-23 23:50:58,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:50:58,090 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 601 transitions. [2020-10-23 23:50:58,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-23 23:50:58,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:50:58,094 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] [2020-10-23 23:50:58,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:50:58,094 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 23:50:58,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:50:58,095 INFO L82 PathProgramCache]: Analyzing trace with hash 327960079, now seen corresponding path program 1 times [2020-10-23 23:50:58,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:50:58,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367875682] [2020-10-23 23:50:58,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:50:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,417 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:50:58,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:50:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:50:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:50:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:50:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:50:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:50:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:50:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:50:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:50:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:50:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 23:50:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 23:50:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,583 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 23:50:58,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367875682] [2020-10-23 23:50:58,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:50:58,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:50:58,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574671407] [2020-10-23 23:50:58,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:50:58,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:50:58,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:50:58,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:50:58,586 INFO L87 Difference]: Start difference. First operand 545 states and 601 transitions. Second operand 10 states. [2020-10-23 23:50:59,114 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:00,444 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:51:00,748 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:51:01,088 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:01,406 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:51:02,069 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:51:02,353 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:51:02,646 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:51:03,021 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:04,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:51:04,163 INFO L93 Difference]: Finished difference Result 1471 states and 1729 transitions. [2020-10-23 23:51:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 23:51:04,163 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-10-23 23:51:04,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:51:04,171 INFO L225 Difference]: With dead ends: 1471 [2020-10-23 23:51:04,171 INFO L226 Difference]: Without dead ends: 1046 [2020-10-23 23:51:04,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-23 23:51:04,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2020-10-23 23:51:04,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 893. [2020-10-23 23:51:04,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 893 states. [2020-10-23 23:51:04,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 991 transitions. [2020-10-23 23:51:04,585 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 991 transitions. Word has length 196 [2020-10-23 23:51:04,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:51:04,585 INFO L481 AbstractCegarLoop]: Abstraction has 893 states and 991 transitions. [2020-10-23 23:51:04,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:51:04,586 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 991 transitions. [2020-10-23 23:51:04,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-23 23:51:04,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:51:04,590 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] [2020-10-23 23:51:04,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:51:04,590 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 23:51:04,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:51:04,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1066611404, now seen corresponding path program 1 times [2020-10-23 23:51:04,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:51:04,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924553729] [2020-10-23 23:51:04,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:51:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:04,908 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:51:04,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:51:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:04,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:51:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:04,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:51:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:04,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:51:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:04,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:51:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:04,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:51:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:04,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 23:51:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:04,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 23:51:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:04,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:04,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:51:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:05,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:51:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:05,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 23:51:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:05,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 23:51:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:05,080 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 23:51:05,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924553729] [2020-10-23 23:51:05,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:51:05,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 23:51:05,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771810778] [2020-10-23 23:51:05,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 23:51:05,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:51:05,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 23:51:05,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:51:05,091 INFO L87 Difference]: Start difference. First operand 893 states and 991 transitions. Second operand 11 states. [2020-10-23 23:51:05,670 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:07,476 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:07,790 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:51:08,169 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:09,371 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:51:09,671 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:51:10,007 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:51:10,317 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:51:10,609 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:51:11,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:51:11,059 INFO L93 Difference]: Finished difference Result 1941 states and 2261 transitions. [2020-10-23 23:51:11,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-23 23:51:11,060 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 201 [2020-10-23 23:51:11,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:51:11,073 INFO L225 Difference]: With dead ends: 1941 [2020-10-23 23:51:11,073 INFO L226 Difference]: Without dead ends: 1168 [2020-10-23 23:51:11,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2020-10-23 23:51:11,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2020-10-23 23:51:11,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 889. [2020-10-23 23:51:11,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 889 states. [2020-10-23 23:51:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 983 transitions. [2020-10-23 23:51:11,577 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 983 transitions. Word has length 201 [2020-10-23 23:51:11,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:51:11,578 INFO L481 AbstractCegarLoop]: Abstraction has 889 states and 983 transitions. [2020-10-23 23:51:11,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 23:51:11,579 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 983 transitions. [2020-10-23 23:51:11,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-23 23:51:11,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:51:11,588 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:51:11,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 23:51:11,588 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 23:51:11,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:51:11,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1888302541, now seen corresponding path program 1 times [2020-10-23 23:51:11,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:51:11,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446209637] [2020-10-23 23:51:11,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:51:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,929 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:51:11,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:51:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:51:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:51:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:51:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:51:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:51:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 23:51:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 23:51:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:51:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:51:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 23:51:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 23:51:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-23 23:51:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:12,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 23:51:12,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446209637] [2020-10-23 23:51:12,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:51:12,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 23:51:12,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550910232] [2020-10-23 23:51:12,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 23:51:12,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:51:12,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 23:51:12,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:51:12,250 INFO L87 Difference]: Start difference. First operand 889 states and 983 transitions. Second operand 11 states. [2020-10-23 23:51:13,608 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:51:13,903 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:51:14,239 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 23:51:14,539 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:14,853 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:15,145 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:16,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:51:16,675 INFO L93 Difference]: Finished difference Result 1967 states and 2326 transitions. [2020-10-23 23:51:16,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:51:16,675 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 224 [2020-10-23 23:51:16,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:51:16,686 INFO L225 Difference]: With dead ends: 1967 [2020-10-23 23:51:16,686 INFO L226 Difference]: Without dead ends: 1198 [2020-10-23 23:51:16,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 23:51:16,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2020-10-23 23:51:17,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 921. [2020-10-23 23:51:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-10-23 23:51:17,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1015 transitions. [2020-10-23 23:51:17,036 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1015 transitions. Word has length 224 [2020-10-23 23:51:17,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:51:17,037 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1015 transitions. [2020-10-23 23:51:17,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 23:51:17,037 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1015 transitions. [2020-10-23 23:51:17,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-23 23:51:17,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:51:17,043 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:51:17,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 23:51:17,043 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 23:51:17,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:51:17,044 INFO L82 PathProgramCache]: Analyzing trace with hash -722556563, now seen corresponding path program 1 times [2020-10-23 23:51:17,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:51:17,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709462114] [2020-10-23 23:51:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:51:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,356 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:51:17,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:51:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:51:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:51:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:51:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:51:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:51:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 23:51:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 23:51:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:51:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:51:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 23:51:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 23:51:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-23 23:51:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 23:51:17,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709462114] [2020-10-23 23:51:17,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:51:17,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 23:51:17,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458764232] [2020-10-23 23:51:17,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 23:51:17,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:51:17,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 23:51:17,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 23:51:17,592 INFO L87 Difference]: Start difference. First operand 921 states and 1015 transitions. Second operand 14 states. [2020-10-23 23:51:18,280 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:51:18,600 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:51:18,914 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:19,212 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:19,499 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:20,372 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:20,643 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:20,940 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:21,234 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:21,513 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:23,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:51:23,050 INFO L93 Difference]: Finished difference Result 1732 states and 2011 transitions. [2020-10-23 23:51:23,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 23:51:23,050 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 224 [2020-10-23 23:51:23,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:51:23,056 INFO L225 Difference]: With dead ends: 1732 [2020-10-23 23:51:23,057 INFO L226 Difference]: Without dead ends: 931 [2020-10-23 23:51:23,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 23:51:23,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2020-10-23 23:51:23,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 738. [2020-10-23 23:51:23,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2020-10-23 23:51:23,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 797 transitions. [2020-10-23 23:51:23,395 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 797 transitions. Word has length 224 [2020-10-23 23:51:23,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:51:23,396 INFO L481 AbstractCegarLoop]: Abstraction has 738 states and 797 transitions. [2020-10-23 23:51:23,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 23:51:23,396 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 797 transitions. [2020-10-23 23:51:23,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-23 23:51:23,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:51:23,401 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:51:23,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 23:51:23,401 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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 23:51:23,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:51:23,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1239083327, now seen corresponding path program 1 times [2020-10-23 23:51:23,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:51:23,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865065962] [2020-10-23 23:51:23,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:51:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:23,726 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:51:23,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:51:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:23,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:51:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:23,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:51:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:23,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:51:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:23,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:51:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:23,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:51:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:23,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:51:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:23,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:51:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:23,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 23:51:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:23,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:23,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:51:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:23,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:51:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:24,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:24,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:24,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 23:51:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:24,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-23 23:51:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:24,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-23 23:51:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:24,224 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 23:51:24,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865065962] [2020-10-23 23:51:24,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-23 23:51:24,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-23 23:51:24,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604296206] [2020-10-23 23:51:24,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-23 23:51:24,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:51:24,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-23 23:51:24,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2020-10-23 23:51:24,226 INFO L87 Difference]: Start difference. First operand 738 states and 797 transitions. Second operand 21 states. [2020-10-23 23:51:24,839 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:25,257 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:51:25,575 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-23 23:51:25,909 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:26,207 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:51:26,502 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:27,525 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:28,878 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:29,231 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 23:51:29,630 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:29,952 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:30,275 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 23:51:30,598 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 23:51:30,895 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:31,221 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 23:51:31,555 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:31,957 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 23:51:32,280 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:32,657 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 23:51:33,349 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-10-23 23:51:34,060 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2020-10-23 23:51:34,703 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-10-23 23:51:36,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:51:36,709 INFO L93 Difference]: Finished difference Result 1514 states and 1711 transitions. [2020-10-23 23:51:36,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-23 23:51:36,710 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 229 [2020-10-23 23:51:36,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:51:36,716 INFO L225 Difference]: With dead ends: 1514 [2020-10-23 23:51:36,716 INFO L226 Difference]: Without dead ends: 896 [2020-10-23 23:51:36,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=726, Invalid=3056, Unknown=0, NotChecked=0, Total=3782 [2020-10-23 23:51:36,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2020-10-23 23:51:37,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 699. [2020-10-23 23:51:37,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-23 23:51:37,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 747 transitions. [2020-10-23 23:51:37,075 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 747 transitions. Word has length 229 [2020-10-23 23:51:37,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:51:37,076 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 747 transitions. [2020-10-23 23:51:37,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-23 23:51:37,076 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 747 transitions. [2020-10-23 23:51:37,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-23 23:51:37,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:51:37,083 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:51:37,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 23:51:37,083 INFO L429 AbstractCegarLoop]: === Iteration 11 === [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 23:51:37,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:51:37,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1213691347, now seen corresponding path program 1 times [2020-10-23 23:51:37,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:51:37,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817964064] [2020-10-23 23:51:37,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:51:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,361 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:51:37,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:51:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:51:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:51:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:51:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:51:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:51:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:51:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 23:51:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:51:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:51:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 23:51:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-23 23:51:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-23 23:51:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-23 23:51:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-10-23 23:51:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-23 23:51:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-23 23:51:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:37,663 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-23 23:51:37,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1817964064] [2020-10-23 23:51:37,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-23 23:51:37,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-23 23:51:37,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011897373] [2020-10-23 23:51:37,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:51:37,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:51:37,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:51:37,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:51:37,668 INFO L87 Difference]: Start difference. First operand 699 states and 747 transitions. Second operand 10 states. [2020-10-23 23:51:38,844 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:40,728 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:41,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:51:41,638 INFO L93 Difference]: Finished difference Result 1659 states and 1940 transitions. [2020-10-23 23:51:41,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-23 23:51:41,639 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 276 [2020-10-23 23:51:41,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:51:41,651 INFO L225 Difference]: With dead ends: 1659 [2020-10-23 23:51:41,651 INFO L226 Difference]: Without dead ends: 1247 [2020-10-23 23:51:41,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=184, Invalid=518, Unknown=0, NotChecked=0, Total=702 [2020-10-23 23:51:41,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2020-10-23 23:51:42,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 957. [2020-10-23 23:51:42,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 957 states. [2020-10-23 23:51:42,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1048 transitions. [2020-10-23 23:51:42,081 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1048 transitions. Word has length 276 [2020-10-23 23:51:42,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:51:42,082 INFO L481 AbstractCegarLoop]: Abstraction has 957 states and 1048 transitions. [2020-10-23 23:51:42,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:51:42,082 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1048 transitions. [2020-10-23 23:51:42,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-23 23:51:42,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:51:42,090 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:51:42,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-23 23:51:42,090 INFO L429 AbstractCegarLoop]: === Iteration 12 === [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 23:51:42,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:51:42,091 INFO L82 PathProgramCache]: Analyzing trace with hash 145654854, now seen corresponding path program 1 times [2020-10-23 23:51:42,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:51:42,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162831722] [2020-10-23 23:51:42,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:51:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,429 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:51:42,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:51:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:51:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:51:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:51:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:51:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:51:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:51:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 23:51:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:51:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:51:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 23:51:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-23 23:51:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-23 23:51:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-23 23:51:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-23 23:51:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2020-10-23 23:51:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2020-10-23 23:51:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-23 23:51:42,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162831722] [2020-10-23 23:51:42,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-23 23:51:42,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-23 23:51:42,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906882093] [2020-10-23 23:51:42,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:51:42,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:51:42,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:51:42,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:51:42,628 INFO L87 Difference]: Start difference. First operand 957 states and 1048 transitions. Second operand 9 states. [2020-10-23 23:51:43,168 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:45,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:51:45,538 INFO L93 Difference]: Finished difference Result 1868 states and 2184 transitions. [2020-10-23 23:51:45,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 23:51:45,538 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 277 [2020-10-23 23:51:45,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:51:45,548 INFO L225 Difference]: With dead ends: 1868 [2020-10-23 23:51:45,548 INFO L226 Difference]: Without dead ends: 1864 [2020-10-23 23:51:45,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-10-23 23:51:45,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2020-10-23 23:51:46,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1472. [2020-10-23 23:51:46,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1472 states. [2020-10-23 23:51:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1614 transitions. [2020-10-23 23:51:46,329 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1614 transitions. Word has length 277 [2020-10-23 23:51:46,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:51:46,329 INFO L481 AbstractCegarLoop]: Abstraction has 1472 states and 1614 transitions. [2020-10-23 23:51:46,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:51:46,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1614 transitions. [2020-10-23 23:51:46,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-23 23:51:46,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:51:46,339 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:51:46,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-23 23:51:46,340 INFO L429 AbstractCegarLoop]: === Iteration 13 === [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 23:51:46,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:51:46,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1029463447, now seen corresponding path program 1 times [2020-10-23 23:51:46,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:51:46,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510755322] [2020-10-23 23:51:46,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:51:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,686 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:51:46,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:51:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:51:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:51:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:51:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:51:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:51:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:51:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 23:51:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:51:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:51:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 23:51:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-23 23:51:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-23 23:51:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-23 23:51:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:51:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 23:51:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 23:51:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 23:51:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-10-23 23:51:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-10-23 23:51:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-23 23:51:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:46,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2020-10-23 23:51:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:47,040 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 58 proven. 27 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-23 23:51:47,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510755322] [2020-10-23 23:51:47,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-23 23:51:47,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-23 23:51:47,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121408130] [2020-10-23 23:51:47,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 23:51:47,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:51:47,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 23:51:47,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-23 23:51:47,042 INFO L87 Difference]: Start difference. First operand 1472 states and 1614 transitions. Second operand 12 states. [2020-10-23 23:51:47,604 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:48,306 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:51,137 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:52,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:51:52,861 INFO L93 Difference]: Finished difference Result 3812 states and 4455 transitions. [2020-10-23 23:51:52,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-23 23:51:52,861 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 335 [2020-10-23 23:51:52,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:51:52,881 INFO L225 Difference]: With dead ends: 3812 [2020-10-23 23:51:52,881 INFO L226 Difference]: Without dead ends: 2627 [2020-10-23 23:51:52,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 76 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=337, Invalid=1069, Unknown=0, NotChecked=0, Total=1406 [2020-10-23 23:51:52,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2020-10-23 23:51:54,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2015. [2020-10-23 23:51:54,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2015 states. [2020-10-23 23:51:54,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2231 transitions. [2020-10-23 23:51:54,022 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2231 transitions. Word has length 335 [2020-10-23 23:51:54,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:51:54,023 INFO L481 AbstractCegarLoop]: Abstraction has 2015 states and 2231 transitions. [2020-10-23 23:51:54,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 23:51:54,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2231 transitions. [2020-10-23 23:51:54,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-10-23 23:51:54,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:51:54,029 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:51:54,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-23 23:51:54,029 INFO L429 AbstractCegarLoop]: === Iteration 14 === [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 23:51:54,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:51:54,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1270442750, now seen corresponding path program 1 times [2020-10-23 23:51:54,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:51:54,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314239192] [2020-10-23 23:51:54,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:51:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:51:54,119 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:51:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:51:54,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:51:54,749 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:51:54,749 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:51:54,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-23 23:51:55,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:51:55 BoogieIcfgContainer [2020-10-23 23:51:55,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:51:55,193 INFO L168 Benchmark]: Toolchain (without parser) took 79020.19 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 853.5 MB). Free memory was 125.6 MB in the beginning and 524.7 MB in the end (delta: -399.1 MB). Peak memory consumption was 455.5 MB. Max. memory is 8.0 GB. [2020-10-23 23:51:55,194 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:51:55,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.17 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 103.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:51:55,198 INFO L168 Benchmark]: Boogie Preprocessor took 87.29 ms. Allocated memory is still 151.0 MB. Free memory was 103.6 MB in the beginning and 99.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:51:55,199 INFO L168 Benchmark]: RCFGBuilder took 1832.26 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 99.5 MB in the beginning and 136.8 MB in the end (delta: -37.2 MB). Peak memory consumption was 34.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:51:55,200 INFO L168 Benchmark]: TraceAbstraction took 76383.28 ms. Allocated memory was 187.7 MB in the beginning and 1.0 GB in the end (delta: 816.8 MB). Free memory was 136.2 MB in the beginning and 524.7 MB in the end (delta: -388.5 MB). Peak memory consumption was 427.8 MB. Max. memory is 8.0 GB. [2020-10-23 23:51:55,203 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 702.17 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 103.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 87.29 ms. Allocated memory is still 151.0 MB. Free memory was 103.6 MB in the beginning and 99.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1832.26 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 99.5 MB in the beginning and 136.8 MB in the end (delta: -37.2 MB). Peak memory consumption was 34.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 76383.28 ms. Allocated memory was 187.7 MB in the beginning and 1.0 GB in the end (delta: 816.8 MB). Free memory was 136.2 MB in the beginning and 524.7 MB in the end (delta: -388.5 MB). Peak memory consumption was 427.8 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: [L45] int methAndRunningLastTime ; VAL [\old(cleanupTimeShifts)=180, \old(head)=167, \old(head)=183, \old(methAndRunningLastTime)=172, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=180, head={183:167}, methAndRunningLastTime=0, methaneLevelCritical=149, pumpRunning=139, systemActive=138, waterLevel=142] [L253] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=167, \old(head)=183, \old(methAndRunningLastTime)=172, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=180, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=149, pumpRunning=139, systemActive=138, waterLevel=142] [L457] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=183, \old(head)=167, \old(methAndRunningLastTime)=172, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=180, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=149, pumpRunning=0, systemActive=138, waterLevel=142] [L458] int systemActive = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=167, \old(head)=183, \old(methAndRunningLastTime)=172, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=180, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=142] [L630] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=183, \old(head)=167, \old(methAndRunningLastTime)=172, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=180, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=1] [L631] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=167, \old(head)=183, \old(methAndRunningLastTime)=172, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=180, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L837] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=180, \old(head)=183, \old(head)=167, \old(methAndRunningLastTime)=172, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L911] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L912] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L916] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L917] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L918] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L819] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L822] retValue_acc = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L823] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L918] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L918] tmp = valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L920] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L922] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L923] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L50] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L726] int splverifierCounter ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L727] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L728] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L729] int tmp___1 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L730] int tmp___2 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L733] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L735] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L737] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L743] tmp = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L745] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L747] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L648] COND TRUE waterLevel < 2 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L649] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L747] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L753] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L755] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L763] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L765] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L778] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L464] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L471] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L473] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L493] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L608] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L609] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L610] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L614] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L710] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L713] COND FALSE !(waterLevel < 2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L717] retValue_acc = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L718] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L614] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L614] tmp = isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L616] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L619] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L621] retValue_acc = tmp___0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L622] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L498] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] tmp = isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L500] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L502] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L527] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L531] CALL, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L552] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L556] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L669] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L672] retValue_acc = methaneLevelCritical VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L673] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L556] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L556] retValue_acc = isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L558] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L531] RET, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L531] tmp = isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L533] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L537] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L521] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L537] RET activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L502] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L473] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L479] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L55] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L56] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L60] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L669] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L672] retValue_acc = methaneLevelCritical VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L673] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L60] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L60] tmp = isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L62] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L78] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L479] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L778] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L735] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L737] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L743] tmp = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L745] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L753] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L755] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L757] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L660] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L663] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L757] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L763] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L765] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L778] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L464] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L466] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L636] COND TRUE waterLevel > 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L637] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L466] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L473] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L493] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L496] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L511] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L473] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L479] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L55] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L56] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L60] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L669] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L672] retValue_acc = methaneLevelCritical VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L673] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L60] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L60] tmp = isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L62] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L64] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L563] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L566] retValue_acc = pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L567] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L64] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L64] tmp___0 = isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L66] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L67] COND FALSE !(\read(methAndRunningLastTime)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L72] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L479] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L778] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L735] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L737] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L743] tmp = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L745] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L753] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L755] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L763] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L765] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L778] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L464] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L466] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L636] COND TRUE waterLevel > 0 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L637] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L466] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L471] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L473] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L493] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L496] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L511] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L473] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L479] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L55] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L56] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L60] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L669] int retValue_acc ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L672] retValue_acc = methaneLevelCritical VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L673] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L60] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L60] tmp = isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L62] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L64] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L563] int retValue_acc ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L566] retValue_acc = pumpRunning VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L567] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L64] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L64] tmp___0 = isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L66] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L67] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L69] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L832] CALL reach_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec2_product41.cil.c", 3, "reach_error") VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 637 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 75.8s, OverallIterations: 14, TraceHistogramMax: 4, AutomataDifference: 61.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3442 SDtfs, 10430 SDslu, 7761 SDs, 0 SdLazy, 14918 SolverSat, 2953 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 785 GetRequests, 479 SyntacticMatches, 12 SemanticMatches, 294 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2018 ImplicationChecksByTransitivity, 28.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2015occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 2709 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 3139 NumberOfCodeBlocks, 3139 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2790 ConstructedInterpolants, 0 QuantifiedInterpolants, 1505537 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 212/247 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...