/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 03:55:37,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 03:55:37,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 03:55:37,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 03:55:37,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 03:55:37,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 03:55:37,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 03:55:37,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 03:55:37,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 03:55:37,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 03:55:37,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 03:55:37,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 03:55:37,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 03:55:37,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 03:55:37,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 03:55:37,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 03:55:37,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 03:55:37,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 03:55:37,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 03:55:37,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 03:55:37,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 03:55:37,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 03:55:37,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 03:55:37,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 03:55:37,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 03:55:37,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 03:55:37,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 03:55:37,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 03:55:37,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 03:55:37,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 03:55:37,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 03:55:37,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 03:55:37,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 03:55:37,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 03:55:37,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 03:55:37,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 03:55:37,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 03:55:37,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 03:55:37,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 03:55:37,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 03:55:37,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 03:55:37,730 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 03:55:37,756 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 03:55:37,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 03:55:37,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 03:55:37,761 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 03:55:37,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 03:55:37,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 03:55:37,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 03:55:37,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 03:55:37,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 03:55:37,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 03:55:37,764 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 03:55:37,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 03:55:37,764 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 03:55:37,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 03:55:37,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 03:55:37,765 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 03:55:37,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 03:55:37,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 03:55:37,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 03:55:37,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 03:55:37,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 03:55:37,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 03:55:37,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 03:55:38,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 03:55:38,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 03:55:38,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 03:55:38,244 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 03:55:38,244 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 03:55:38,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-11-07 03:55:38,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e012672d0/22ccda1659764211845d43f1ae50e578/FLAG4e03c6353 [2020-11-07 03:55:39,134 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 03:55:39,141 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-11-07 03:55:39,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e012672d0/22ccda1659764211845d43f1ae50e578/FLAG4e03c6353 [2020-11-07 03:55:39,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e012672d0/22ccda1659764211845d43f1ae50e578 [2020-11-07 03:55:39,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 03:55:39,403 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 03:55:39,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 03:55:39,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 03:55:39,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 03:55:39,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:55:39" (1/1) ... [2020-11-07 03:55:39,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335feab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:39, skipping insertion in model container [2020-11-07 03:55:39,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:55:39" (1/1) ... [2020-11-07 03:55:39,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 03:55:39,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 03:55:39,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 03:55:39,877 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 03:55:40,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 03:55:40,091 INFO L208 MainTranslator]: Completed translation [2020-11-07 03:55:40,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:40 WrapperNode [2020-11-07 03:55:40,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 03:55:40,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 03:55:40,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 03:55:40,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 03:55:40,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:40" (1/1) ... [2020-11-07 03:55:40,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:40" (1/1) ... [2020-11-07 03:55:40,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:40" (1/1) ... [2020-11-07 03:55:40,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:40" (1/1) ... [2020-11-07 03:55:40,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:40" (1/1) ... [2020-11-07 03:55:40,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:40" (1/1) ... [2020-11-07 03:55:40,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:40" (1/1) ... [2020-11-07 03:55:40,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 03:55:40,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 03:55:40,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 03:55:40,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 03:55:40,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:40" (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 [2020-11-07 03:55:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 03:55:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 03:55:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 03:55:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 03:55:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 03:55:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 03:55:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 03:55:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 03:55:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 03:55:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 03:55:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 03:55:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 03:55:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 03:55:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 03:55:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 03:55:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 03:55:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 03:55:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 03:55:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 03:55:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 03:55:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 03:55:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-11-07 03:55:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 03:55:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 03:55:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 03:55:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 03:55:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 03:55:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 03:55:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 03:55:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 03:55:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-11-07 03:55:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 03:55:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 03:55:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 03:55:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 03:55:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 03:55:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 03:55:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 03:55:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 03:55:40,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 03:55:40,312 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 03:55:40,312 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 03:55:40,312 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 03:55:40,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 03:55:40,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 03:55:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 03:55:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 03:55:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 03:55:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 03:55:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 03:55:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 03:55:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 03:55:40,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 03:55:40,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 03:55:40,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 03:55:40,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 03:55:40,314 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 03:55:40,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 03:55:40,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 03:55:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 03:55:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 03:55:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 03:55:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 03:55:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 03:55:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 03:55:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 03:55:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 03:55:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 03:55:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 03:55:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 03:55:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 03:55:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 03:55:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 03:55:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 03:55:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 03:55:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 03:55:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-11-07 03:55:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 03:55:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 03:55:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 03:55:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-11-07 03:55:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 03:55:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 03:55:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 03:55:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 03:55:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 03:55:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 03:55:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 03:55:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 03:55:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 03:55:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 03:55:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 03:55:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 03:55:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 03:55:41,970 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 03:55:41,971 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 03:55:41,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:41 BoogieIcfgContainer [2020-11-07 03:55:41,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 03:55:41,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 03:55:41,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 03:55:41,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 03:55:41,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:55:39" (1/3) ... [2020-11-07 03:55:41,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c40ee66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:41, skipping insertion in model container [2020-11-07 03:55:41,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:40" (2/3) ... [2020-11-07 03:55:41,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c40ee66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:41, skipping insertion in model container [2020-11-07 03:55:41,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:41" (3/3) ... [2020-11-07 03:55:41,987 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2020-11-07 03:55:42,004 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 03:55:42,009 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 03:55:42,022 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 03:55:42,048 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 03:55:42,048 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 03:55:42,048 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 03:55:42,048 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 03:55:42,049 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 03:55:42,049 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 03:55:42,049 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 03:55:42,049 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 03:55:42,073 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-11-07 03:55:42,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-07 03:55:42,094 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:42,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:42,096 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]=== [2020-11-07 03:55:42,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:42,103 INFO L82 PathProgramCache]: Analyzing trace with hash 710347960, now seen corresponding path program 1 times [2020-11-07 03:55:42,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:42,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770718368] [2020-11-07 03:55:42,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:42,913 WARN L194 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:42,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:43,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:43,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:43,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:43,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:43,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:55:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:43,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 03:55:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:43,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:43,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770718368] [2020-11-07 03:55:43,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:43,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 03:55:43,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177645470] [2020-11-07 03:55:43,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 03:55:43,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:43,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 03:55:43,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 03:55:43,151 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 3 states. [2020-11-07 03:55:44,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:44,947 INFO L93 Difference]: Finished difference Result 474 states and 562 transitions. [2020-11-07 03:55:44,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 03:55:44,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-07 03:55:44,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:44,973 INFO L225 Difference]: With dead ends: 474 [2020-11-07 03:55:44,973 INFO L226 Difference]: Without dead ends: 296 [2020-11-07 03:55:44,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 03:55:45,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-11-07 03:55:45,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 254. [2020-11-07 03:55:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-11-07 03:55:45,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 274 transitions. [2020-11-07 03:55:45,164 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 274 transitions. Word has length 148 [2020-11-07 03:55:45,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:45,166 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 274 transitions. [2020-11-07 03:55:45,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 03:55:45,166 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 274 transitions. [2020-11-07 03:55:45,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-07 03:55:45,171 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:45,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:45,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 03:55:45,172 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]=== [2020-11-07 03:55:45,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:45,172 INFO L82 PathProgramCache]: Analyzing trace with hash -249559115, now seen corresponding path program 1 times [2020-11-07 03:55:45,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:45,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620886708] [2020-11-07 03:55:45,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,714 WARN L194 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:45,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 03:55:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 03:55:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:45,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620886708] [2020-11-07 03:55:45,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:45,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 03:55:45,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261552798] [2020-11-07 03:55:45,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 03:55:45,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:45,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 03:55:45,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 03:55:45,804 INFO L87 Difference]: Start difference. First operand 254 states and 274 transitions. Second operand 4 states. [2020-11-07 03:55:46,648 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:47,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:47,788 INFO L93 Difference]: Finished difference Result 384 states and 429 transitions. [2020-11-07 03:55:47,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 03:55:47,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-11-07 03:55:47,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:47,796 INFO L225 Difference]: With dead ends: 384 [2020-11-07 03:55:47,796 INFO L226 Difference]: Without dead ends: 279 [2020-11-07 03:55:47,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 03:55:47,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-11-07 03:55:47,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 244. [2020-11-07 03:55:47,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-11-07 03:55:47,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 261 transitions. [2020-11-07 03:55:47,905 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 261 transitions. Word has length 149 [2020-11-07 03:55:47,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:47,906 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 261 transitions. [2020-11-07 03:55:47,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 03:55:47,906 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 261 transitions. [2020-11-07 03:55:47,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-11-07 03:55:47,909 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:47,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:47,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 03:55:47,910 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]=== [2020-11-07 03:55:47,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:47,911 INFO L82 PathProgramCache]: Analyzing trace with hash 618696689, now seen corresponding path program 1 times [2020-11-07 03:55:47,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:47,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735805206] [2020-11-07 03:55:47,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:48,343 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:48,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:48,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:48,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:48,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:48,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:48,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 03:55:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:48,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 03:55:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:48,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-07 03:55:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:48,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735805206] [2020-11-07 03:55:48,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:48,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:55:48,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647338908] [2020-11-07 03:55:48,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:55:48,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:48,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:55:48,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:55:48,544 INFO L87 Difference]: Start difference. First operand 244 states and 261 transitions. Second operand 10 states. [2020-11-07 03:55:49,332 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:49,787 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:50,209 WARN L194 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:55:50,619 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:51,010 WARN L194 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:51,436 WARN L194 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:53,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:53,363 INFO L93 Difference]: Finished difference Result 430 states and 491 transitions. [2020-11-07 03:55:53,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 03:55:53,369 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-11-07 03:55:53,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:53,374 INFO L225 Difference]: With dead ends: 430 [2020-11-07 03:55:53,374 INFO L226 Difference]: Without dead ends: 301 [2020-11-07 03:55:53,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-11-07 03:55:53,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-11-07 03:55:53,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 244. [2020-11-07 03:55:53,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-11-07 03:55:53,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 260 transitions. [2020-11-07 03:55:53,486 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 260 transitions. Word has length 162 [2020-11-07 03:55:53,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:53,487 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 260 transitions. [2020-11-07 03:55:53,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:55:53,487 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 260 transitions. [2020-11-07 03:55:53,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-11-07 03:55:53,490 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:53,490 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] [2020-11-07 03:55:53,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 03:55:53,491 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]=== [2020-11-07 03:55:53,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:53,492 INFO L82 PathProgramCache]: Analyzing trace with hash -678949150, now seen corresponding path program 1 times [2020-11-07 03:55:53,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:53,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390451231] [2020-11-07 03:55:53,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:53,891 WARN L194 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:53,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:53,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:53,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:53,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:53,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:53,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 03:55:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:53,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 03:55:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:53,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:53,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 03:55:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:53,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-11-07 03:55:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:54,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:54,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390451231] [2020-11-07 03:55:54,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:54,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 03:55:54,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920078447] [2020-11-07 03:55:54,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 03:55:54,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:54,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 03:55:54,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 03:55:54,056 INFO L87 Difference]: Start difference. First operand 244 states and 260 transitions. Second operand 7 states. [2020-11-07 03:55:54,809 WARN L194 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:56,794 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:57,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:57,828 INFO L93 Difference]: Finished difference Result 603 states and 710 transitions. [2020-11-07 03:55:57,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 03:55:57,828 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-11-07 03:55:57,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:57,833 INFO L225 Difference]: With dead ends: 603 [2020-11-07 03:55:57,833 INFO L226 Difference]: Without dead ends: 474 [2020-11-07 03:55:57,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-11-07 03:55:57,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-11-07 03:55:57,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 345. [2020-11-07 03:55:57,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-11-07 03:55:57,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 371 transitions. [2020-11-07 03:55:57,994 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 371 transitions. Word has length 170 [2020-11-07 03:55:57,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:57,995 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 371 transitions. [2020-11-07 03:55:57,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 03:55:57,995 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 371 transitions. [2020-11-07 03:55:57,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-11-07 03:55:57,998 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:57,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:57,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 03:55:57,999 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]=== [2020-11-07 03:55:57,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:57,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1412713267, now seen corresponding path program 1 times [2020-11-07 03:55:58,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:58,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222517666] [2020-11-07 03:55:58,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,384 WARN L194 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:58,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 03:55:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 03:55:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 03:55:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-11-07 03:55:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:58,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222517666] [2020-11-07 03:55:58,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:58,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:55:58,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546095868] [2020-11-07 03:55:58,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:55:58,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:58,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:55:58,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:55:58,680 INFO L87 Difference]: Start difference. First operand 345 states and 371 transitions. Second operand 10 states. [2020-11-07 03:55:59,348 WARN L194 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:00,599 WARN L194 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:01,010 WARN L194 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:56:01,413 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:56:01,787 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:02,224 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 03:56:02,663 WARN L194 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:05,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:05,199 INFO L93 Difference]: Finished difference Result 984 states and 1198 transitions. [2020-11-07 03:56:05,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 03:56:05,200 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-11-07 03:56:05,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:05,210 INFO L225 Difference]: With dead ends: 984 [2020-11-07 03:56:05,210 INFO L226 Difference]: Without dead ends: 754 [2020-11-07 03:56:05,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-11-07 03:56:05,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2020-11-07 03:56:05,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 541. [2020-11-07 03:56:05,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-11-07 03:56:05,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 594 transitions. [2020-11-07 03:56:05,475 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 594 transitions. Word has length 194 [2020-11-07 03:56:05,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:05,475 INFO L481 AbstractCegarLoop]: Abstraction has 541 states and 594 transitions. [2020-11-07 03:56:05,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:56:05,475 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 594 transitions. [2020-11-07 03:56:05,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-11-07 03:56:05,479 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:05,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:56:05,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 03:56:05,479 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]=== [2020-11-07 03:56:05,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:05,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1621062038, now seen corresponding path program 1 times [2020-11-07 03:56:05,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:05,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826079788] [2020-11-07 03:56:05,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:05,884 WARN L194 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:05,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:05,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:05,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:05,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:05,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:06,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 03:56:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:06,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 03:56:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:06,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:06,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:56:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:06,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:56:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:06,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 03:56:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:06,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-11-07 03:56:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:56:06,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826079788] [2020-11-07 03:56:06,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:56:06,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:56:06,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010055859] [2020-11-07 03:56:06,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:56:06,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:06,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:56:06,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:56:06,156 INFO L87 Difference]: Start difference. First operand 541 states and 594 transitions. Second operand 10 states. [2020-11-07 03:56:06,780 WARN L194 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:08,426 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:08,845 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:09,285 WARN L194 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:09,668 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:10,469 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:10,877 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:11,237 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:11,698 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:13,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:13,183 INFO L93 Difference]: Finished difference Result 1715 states and 2101 transitions. [2020-11-07 03:56:13,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 03:56:13,187 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-11-07 03:56:13,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:13,197 INFO L225 Difference]: With dead ends: 1715 [2020-11-07 03:56:13,197 INFO L226 Difference]: Without dead ends: 1289 [2020-11-07 03:56:13,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-11-07 03:56:13,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2020-11-07 03:56:13,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 905. [2020-11-07 03:56:13,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-11-07 03:56:13,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1002 transitions. [2020-11-07 03:56:13,701 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1002 transitions. Word has length 194 [2020-11-07 03:56:13,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:13,702 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1002 transitions. [2020-11-07 03:56:13,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:56:13,702 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1002 transitions. [2020-11-07 03:56:13,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-11-07 03:56:13,706 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:13,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:56:13,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 03:56:13,707 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]=== [2020-11-07 03:56:13,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:13,707 INFO L82 PathProgramCache]: Analyzing trace with hash -946737515, now seen corresponding path program 1 times [2020-11-07 03:56:13,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:13,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240937396] [2020-11-07 03:56:13,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,111 WARN L194 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:14,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:56:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 03:56:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-07 03:56:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:56:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:56:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-11-07 03:56:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-11-07 03:56:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:14,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:56:14,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240937396] [2020-11-07 03:56:14,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:56:14,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-07 03:56:14,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131812600] [2020-11-07 03:56:14,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 03:56:14,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:14,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 03:56:14,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-07 03:56:14,327 INFO L87 Difference]: Start difference. First operand 905 states and 1002 transitions. Second operand 11 states. [2020-11-07 03:56:14,975 WARN L194 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:16,901 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:17,346 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:17,813 WARN L194 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:19,746 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:20,214 WARN L194 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:20,602 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:20,997 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:21,361 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:22,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:22,103 INFO L93 Difference]: Finished difference Result 1535 states and 1918 transitions. [2020-11-07 03:56:22,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-07 03:56:22,104 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-11-07 03:56:22,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:22,115 INFO L225 Difference]: With dead ends: 1535 [2020-11-07 03:56:22,115 INFO L226 Difference]: Without dead ends: 1531 [2020-11-07 03:56:22,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-11-07 03:56:22,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2020-11-07 03:56:22,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 905. [2020-11-07 03:56:22,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-11-07 03:56:22,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1000 transitions. [2020-11-07 03:56:22,468 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1000 transitions. Word has length 199 [2020-11-07 03:56:22,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:22,469 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1000 transitions. [2020-11-07 03:56:22,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 03:56:22,469 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1000 transitions. [2020-11-07 03:56:22,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-11-07 03:56:22,474 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:22,474 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] [2020-11-07 03:56:22,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 03:56:22,475 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]=== [2020-11-07 03:56:22,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:22,475 INFO L82 PathProgramCache]: Analyzing trace with hash -159330690, now seen corresponding path program 1 times [2020-11-07 03:56:22,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:22,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935316584] [2020-11-07 03:56:22,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:22,868 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:22,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:22,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:22,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:22,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:22,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:22,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:56:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:22,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 03:56:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:22,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-07 03:56:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:22,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:23,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:56:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:23,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:56:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:23,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:23,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:23,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 03:56:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:23,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-11-07 03:56:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:23,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-11-07 03:56:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-07 03:56:23,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935316584] [2020-11-07 03:56:23,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:56:23,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-07 03:56:23,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110122583] [2020-11-07 03:56:23,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 03:56:23,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:23,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 03:56:23,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-07 03:56:23,128 INFO L87 Difference]: Start difference. First operand 905 states and 1000 transitions. Second operand 11 states. [2020-11-07 03:56:24,704 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:25,089 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:56:25,540 WARN L194 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 03:56:25,959 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:26,342 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:26,696 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:28,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:28,551 INFO L93 Difference]: Finished difference Result 2351 states and 2911 transitions. [2020-11-07 03:56:28,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 03:56:28,552 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2020-11-07 03:56:28,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:28,562 INFO L225 Difference]: With dead ends: 2351 [2020-11-07 03:56:28,562 INFO L226 Difference]: Without dead ends: 1561 [2020-11-07 03:56:28,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-11-07 03:56:28,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2020-11-07 03:56:28,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 937. [2020-11-07 03:56:28,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 937 states. [2020-11-07 03:56:28,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1032 transitions. [2020-11-07 03:56:28,995 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1032 transitions. Word has length 222 [2020-11-07 03:56:28,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:28,996 INFO L481 AbstractCegarLoop]: Abstraction has 937 states and 1032 transitions. [2020-11-07 03:56:28,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 03:56:28,996 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1032 transitions. [2020-11-07 03:56:29,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-11-07 03:56:29,000 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:29,001 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] [2020-11-07 03:56:29,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 03:56:29,001 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]=== [2020-11-07 03:56:29,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:29,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1280468702, now seen corresponding path program 1 times [2020-11-07 03:56:29,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:29,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692557605] [2020-11-07 03:56:29,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,391 WARN L194 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:29,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:56:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 03:56:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-07 03:56:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:56:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:56:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 03:56:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-11-07 03:56:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-11-07 03:56:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:29,652 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-07 03:56:29,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692557605] [2020-11-07 03:56:29,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:56:29,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-07 03:56:29,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087743760] [2020-11-07 03:56:29,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 03:56:29,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:29,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 03:56:29,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-11-07 03:56:29,656 INFO L87 Difference]: Start difference. First operand 937 states and 1032 transitions. Second operand 14 states. [2020-11-07 03:56:30,436 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:30,821 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:56:31,212 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:31,612 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:31,975 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:33,046 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:33,422 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:33,798 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:34,181 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:34,539 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:36,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:36,843 INFO L93 Difference]: Finished difference Result 1977 states and 2382 transitions. [2020-11-07 03:56:36,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-07 03:56:36,844 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 222 [2020-11-07 03:56:36,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:36,850 INFO L225 Difference]: With dead ends: 1977 [2020-11-07 03:56:36,850 INFO L226 Difference]: Without dead ends: 1155 [2020-11-07 03:56:36,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-11-07 03:56:36,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2020-11-07 03:56:37,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 741. [2020-11-07 03:56:37,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-11-07 03:56:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 798 transitions. [2020-11-07 03:56:37,177 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 798 transitions. Word has length 222 [2020-11-07 03:56:37,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:37,178 INFO L481 AbstractCegarLoop]: Abstraction has 741 states and 798 transitions. [2020-11-07 03:56:37,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 03:56:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 798 transitions. [2020-11-07 03:56:37,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-11-07 03:56:37,180 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:37,181 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] [2020-11-07 03:56:37,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 03:56:37,181 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]=== [2020-11-07 03:56:37,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:37,182 INFO L82 PathProgramCache]: Analyzing trace with hash -2008380868, now seen corresponding path program 1 times [2020-11-07 03:56:37,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:37,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185206039] [2020-11-07 03:56:37,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,570 WARN L194 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:37,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-11-07 03:56:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-07 03:56:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 03:56:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 03:56:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:56:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:56:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:37,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:38,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 03:56:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:38,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-11-07 03:56:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:38,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-11-07 03:56:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-07 03:56:38,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185206039] [2020-11-07 03:56:38,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 03:56:38,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-11-07 03:56:38,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065217388] [2020-11-07 03:56:38,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-07 03:56:38,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:38,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-07 03:56:38,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2020-11-07 03:56:38,169 INFO L87 Difference]: Start difference. First operand 741 states and 798 transitions. Second operand 21 states. [2020-11-07 03:56:38,897 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:39,429 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:39,822 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 03:56:40,223 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:40,611 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:56:40,990 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:42,087 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:43,911 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:44,340 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:56:44,832 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:45,249 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:45,669 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:56:46,101 WARN L194 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:56:46,498 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:46,923 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:56:47,389 WARN L194 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:47,945 WARN L194 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:56:48,416 WARN L194 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:48,880 WARN L194 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:56:49,735 WARN L194 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-11-07 03:56:50,673 WARN L194 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 208 [2020-11-07 03:56:51,439 WARN L194 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-11-07 03:56:54,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:54,072 INFO L93 Difference]: Finished difference Result 1746 states and 2050 transitions. [2020-11-07 03:56:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-11-07 03:56:54,074 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 227 [2020-11-07 03:56:54,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:54,081 INFO L225 Difference]: With dead ends: 1746 [2020-11-07 03:56:54,081 INFO L226 Difference]: Without dead ends: 1120 [2020-11-07 03:56:54,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 951 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=737, Invalid=3169, Unknown=0, NotChecked=0, Total=3906 [2020-11-07 03:56:54,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2020-11-07 03:56:54,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 706. [2020-11-07 03:56:54,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-11-07 03:56:54,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 753 transitions. [2020-11-07 03:56:54,479 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 753 transitions. Word has length 227 [2020-11-07 03:56:54,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:54,480 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 753 transitions. [2020-11-07 03:56:54,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-07 03:56:54,480 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 753 transitions. [2020-11-07 03:56:54,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-11-07 03:56:54,484 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:54,484 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, 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] [2020-11-07 03:56:54,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 03:56:54,485 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]=== [2020-11-07 03:56:54,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:54,485 INFO L82 PathProgramCache]: Analyzing trace with hash 184003802, now seen corresponding path program 1 times [2020-11-07 03:56:54,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:54,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528154993] [2020-11-07 03:56:54,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:54,936 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:54,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:54,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:54,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:54,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:54,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:54,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-11-07 03:56:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:54,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 03:56:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-07 03:56:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:56:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:56:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 03:56:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 03:56:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-11-07 03:56:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-11-07 03:56:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-11-07 03:56:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-11-07 03:56:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-11-07 03:56:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-11-07 03:56:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:55,265 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-11-07 03:56:55,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528154993] [2020-11-07 03:56:55,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 03:56:55,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 03:56:55,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070752023] [2020-11-07 03:56:55,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:56:55,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:55,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:56:55,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:56:55,268 INFO L87 Difference]: Start difference. First operand 706 states and 753 transitions. Second operand 10 states. [2020-11-07 03:56:56,860 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:57:00,222 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:57:01,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:57:01,848 INFO L93 Difference]: Finished difference Result 2094 states and 2587 transitions. [2020-11-07 03:57:01,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-07 03:57:01,849 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 277 [2020-11-07 03:57:01,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:57:01,863 INFO L225 Difference]: With dead ends: 2094 [2020-11-07 03:57:01,863 INFO L226 Difference]: Without dead ends: 1675 [2020-11-07 03:57:01,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 61 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=206, Invalid=606, Unknown=0, NotChecked=0, Total=812 [2020-11-07 03:57:01,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2020-11-07 03:57:02,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 972. [2020-11-07 03:57:02,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 972 states. [2020-11-07 03:57:02,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1061 transitions. [2020-11-07 03:57:02,262 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1061 transitions. Word has length 277 [2020-11-07 03:57:02,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:57:02,263 INFO L481 AbstractCegarLoop]: Abstraction has 972 states and 1061 transitions. [2020-11-07 03:57:02,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:57:02,264 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1061 transitions. [2020-11-07 03:57:02,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-11-07 03:57:02,267 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:57:02,268 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, 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] [2020-11-07 03:57:02,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 03:57:02,268 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]=== [2020-11-07 03:57:02,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:57:02,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1040876257, now seen corresponding path program 1 times [2020-11-07 03:57:02,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:57:02,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545504390] [2020-11-07 03:57:02,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:57:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 03:57:02,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 03:57:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 03:57:02,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 03:57:02,735 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 03:57:02,735 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 03:57:02,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 03:57:03,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:57:03 BoogieIcfgContainer [2020-11-07 03:57:03,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 03:57:03,163 INFO L168 Benchmark]: Toolchain (without parser) took 83760.88 ms. Allocated memory was 156.2 MB in the beginning and 815.8 MB in the end (delta: 659.6 MB). Free memory was 132.0 MB in the beginning and 715.4 MB in the end (delta: -583.4 MB). Peak memory consumption was 489.1 MB. Max. memory is 8.0 GB. [2020-11-07 03:57:03,164 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 100.5 MB in the beginning and 100.4 MB in the end (delta: 67.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 03:57:03,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.47 ms. Allocated memory is still 156.2 MB. Free memory was 131.3 MB in the beginning and 134.2 MB in the end (delta: -2.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 8.0 GB. [2020-11-07 03:57:03,169 INFO L168 Benchmark]: Boogie Preprocessor took 121.76 ms. Allocated memory is still 156.2 MB. Free memory was 134.2 MB in the beginning and 130.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 03:57:03,173 INFO L168 Benchmark]: RCFGBuilder took 1762.58 ms. Allocated memory is still 156.2 MB. Free memory was 130.0 MB in the beginning and 108.2 MB in the end (delta: 21.8 MB). Peak memory consumption was 43.2 MB. Max. memory is 8.0 GB. [2020-11-07 03:57:03,175 INFO L168 Benchmark]: TraceAbstraction took 81178.23 ms. Allocated memory was 156.2 MB in the beginning and 815.8 MB in the end (delta: 659.6 MB). Free memory was 107.7 MB in the beginning and 715.4 MB in the end (delta: -607.7 MB). Peak memory consumption was 464.5 MB. Max. memory is 8.0 GB. [2020-11-07 03:57:03,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 100.5 MB in the beginning and 100.4 MB in the end (delta: 67.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 686.47 ms. Allocated memory is still 156.2 MB. Free memory was 131.3 MB in the beginning and 134.2 MB in the end (delta: -2.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 121.76 ms. Allocated memory is still 156.2 MB. Free memory was 134.2 MB in the beginning and 130.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1762.58 ms. Allocated memory is still 156.2 MB. Free memory was 130.0 MB in the beginning and 108.2 MB in the end (delta: 21.8 MB). Peak memory consumption was 43.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 81178.23 ms. Allocated memory was 156.2 MB in the beginning and 815.8 MB in the end (delta: 659.6 MB). Free memory was 107.7 MB in the beginning and 715.4 MB in the end (delta: -607.7 MB). Peak memory consumption was 464.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=169, \old(methaneLevelCritical)=148, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=141, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=148, pumpRunning=133, systemActive=132, waterLevel=141] [L415] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=141, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=148, pumpRunning=133, systemActive=132, waterLevel=1] [L416] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=169, \old(methaneLevelCritical)=148, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=141, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=133, systemActive=132, waterLevel=1] [L583] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=169, \old(methaneLevelCritical)=148, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=141, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=132, waterLevel=1] [L584] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=169, \old(methaneLevelCritical)=148, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=141, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L835] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=169, \old(methaneLevelCritical)=148, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L908] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L909] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L913] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L914] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L915] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L829] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L830] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L915] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L915] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L917] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L919] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L920] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L513] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L514] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L515] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L517] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L520] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L522] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L524] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L530] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L532] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L534] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L434] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L534] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L540] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L542] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L550] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L552] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L554] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L757] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L567] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L591] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L600] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L735] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L736] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L737] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L741] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L495] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L502] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L503] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L741] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L741] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L743] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L746] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L748] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L749] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L625] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L627] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L629] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L679] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L683] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L454] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L457] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L458] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L683] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L683] retValue_acc = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L685] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L658] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp = isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L660] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L664] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L648] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L664] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L629] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L600] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L606] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L772] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L773] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L777] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L454] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L457] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L458] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L777] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L777] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L779] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L606] RET __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L567] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L522] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L524] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L530] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L532] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L540] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L542] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L544] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L445] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L448] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L544] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L550] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L552] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L554] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L757] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L554] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L567] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L591] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L593] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L421] COND TRUE waterLevel > 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L422] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L593] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L598] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L600] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L620] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L623] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L638] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L600] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L606] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L772] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L773] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L777] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L454] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L457] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L458] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L777] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L777] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L779] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L781] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L690] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L693] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L694] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L781] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L781] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L783] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L785] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L766] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec1_product42.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 632 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 80.6s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 68.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2870 SDtfs, 8813 SDslu, 7470 SDs, 0 SdLazy, 14697 SolverSat, 3002 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 597 GetRequests, 359 SyntacticMatches, 5 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1550 ImplicationChecksByTransitivity, 34.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=972occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 3641 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 2442 NumberOfCodeBlocks, 2442 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2153 ConstructedInterpolants, 0 QuantifiedInterpolants, 1065044 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 58/64 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...