/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_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:44:51,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:44:51,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:44:51,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:44:51,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:44:51,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:44:51,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:44:51,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:44:51,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:44:51,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:44:51,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:44:51,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:44:51,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:44:51,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:44:51,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:44:51,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:44:51,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:44:51,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:44:51,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:44:51,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:44:51,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:44:51,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:44:51,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:44:51,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:44:51,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:44:51,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:44:51,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:44:51,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:44:51,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:44:51,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:44:51,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:44:51,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:44:51,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:44:51,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:44:51,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:44:51,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:44:51,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:44:51,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:44:51,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:44:51,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:44:51,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:44:51,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 23:44:51,405 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:44:51,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:44:51,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:44:51,410 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:44:51,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:44:51,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:44:51,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:44:51,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:44:51,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:44:51,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:44:51,412 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:44:51,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:44:51,413 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:44:51,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:44:51,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:44:51,414 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:44:51,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:44:51,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:44:51,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:44:51,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:44:51,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:44:51,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:44:51,416 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:44:51,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:44:51,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:44:51,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:44:51,863 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:44:51,864 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:44:51,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-10-23 23:44:51,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f360f4d55/77ec0a30af724d5581e3f0e4afbb989f/FLAG3b0815c2c [2020-10-23 23:44:52,640 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:44:52,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-10-23 23:44:52,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f360f4d55/77ec0a30af724d5581e3f0e4afbb989f/FLAG3b0815c2c [2020-10-23 23:44:52,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f360f4d55/77ec0a30af724d5581e3f0e4afbb989f [2020-10-23 23:44:52,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:44:52,983 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:44:52,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:44:52,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:44:52,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:44:52,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:44:52" (1/1) ... [2020-10-23 23:44:52,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c8d652e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:52, skipping insertion in model container [2020-10-23 23:44:52,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:44:52" (1/1) ... [2020-10-23 23:44:53,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:44:53,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:44:53,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:44:53,375 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:44:53,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:44:53,514 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:44:53,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:53 WrapperNode [2020-10-23 23:44:53,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:44:53,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:44:53,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:44:53,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:44:53,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:53" (1/1) ... [2020-10-23 23:44:53,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:53" (1/1) ... [2020-10-23 23:44:53,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:53" (1/1) ... [2020-10-23 23:44:53,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:53" (1/1) ... [2020-10-23 23:44:53,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:53" (1/1) ... [2020-10-23 23:44:53,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:53" (1/1) ... [2020-10-23 23:44:53,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:53" (1/1) ... [2020-10-23 23:44:53,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:44:53,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:44:53,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:44:53,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:44:53,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:44:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:44:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:44:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:44:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:44:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:44:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:44:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:44:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:44:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:44:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:44:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:44:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:44:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:44:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 23:44:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 23:44:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:44:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:44:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:44:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:44:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:44:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:44:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 23:44:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 23:44:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 23:44:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 23:44:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:44:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:44:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:44:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:44:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:44:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:44:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:44:53,760 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:44:53,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:44:53,760 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:44:53,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:44:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:44:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:44:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:44:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:44:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:44:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:44:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 23:44:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 23:44:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:44:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:44:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:44:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:44:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:44:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:44:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:44:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:44:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:44:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:44:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:44:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:44:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:44:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:44:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:44:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:44:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:44:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:44:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:44:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:44:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:44:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:44:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:44:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 23:44:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 23:44:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:44:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:44:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:44:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:44:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:44:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:44:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 23:44:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 23:44:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:44:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:44:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:44:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:44:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:44:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:44:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:44:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 23:44:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 23:44:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 23:44:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 23:44:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:44:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:44:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:44:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:44:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:44:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:44:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:44:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:44:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:44:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:44:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:44:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:44:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:44:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:44:55,081 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:44:55,081 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:44:55,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:44:55 BoogieIcfgContainer [2020-10-23 23:44:55,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:44:55,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:44:55,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:44:55,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:44:55,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:44:52" (1/3) ... [2020-10-23 23:44:55,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1046eb25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:44:55, skipping insertion in model container [2020-10-23 23:44:55,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:53" (2/3) ... [2020-10-23 23:44:55,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1046eb25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:44:55, skipping insertion in model container [2020-10-23 23:44:55,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:44:55" (3/3) ... [2020-10-23 23:44:55,092 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-10-23 23:44:55,104 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:44:55,109 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:44:55,131 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:44:55,154 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:44:55,154 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:44:55,154 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:44:55,154 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:44:55,155 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:44:55,155 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:44:55,155 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:44:55,155 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:44:55,179 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-10-23 23:44:55,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 23:44:55,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:55,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:55,201 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:44:55,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:55,208 INFO L82 PathProgramCache]: Analyzing trace with hash 713148475, now seen corresponding path program 1 times [2020-10-23 23:44:55,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:55,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543952213] [2020-10-23 23:44:55,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:55,967 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:55,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:44:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:44:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:44:56,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543952213] [2020-10-23 23:44:56,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:56,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:44:56,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089509938] [2020-10-23 23:44:56,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:44:56,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:56,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:44:56,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:44:56,192 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 3 states. [2020-10-23 23:44:58,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:58,165 INFO L93 Difference]: Finished difference Result 564 states and 673 transitions. [2020-10-23 23:44:58,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:44:58,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 23:44:58,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:58,186 INFO L225 Difference]: With dead ends: 564 [2020-10-23 23:44:58,186 INFO L226 Difference]: Without dead ends: 343 [2020-10-23 23:44:58,192 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 [2020-10-23 23:44:58,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-10-23 23:44:58,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 297. [2020-10-23 23:44:58,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-23 23:44:58,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 326 transitions. [2020-10-23 23:44:58,413 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 326 transitions. Word has length 148 [2020-10-23 23:44:58,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:58,414 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 326 transitions. [2020-10-23 23:44:58,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:44:58,415 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 326 transitions. [2020-10-23 23:44:58,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 23:44:58,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:58,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:58,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:44:58,421 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:44:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:58,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1621768087, now seen corresponding path program 1 times [2020-10-23 23:44:58,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:58,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [773265816] [2020-10-23 23:44:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:58,919 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:58,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:58,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:58,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:58,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:58,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:58,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:44:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:58,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:44:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:44:59,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [773265816] [2020-10-23 23:44:59,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:59,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:44:59,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594377755] [2020-10-23 23:44:59,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:44:59,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:59,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:44:59,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:44:59,043 INFO L87 Difference]: Start difference. First operand 297 states and 326 transitions. Second operand 4 states. [2020-10-23 23:44:59,813 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:01,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:01,292 INFO L93 Difference]: Finished difference Result 468 states and 532 transitions. [2020-10-23 23:45:01,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:45:01,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 23:45:01,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:01,300 INFO L225 Difference]: With dead ends: 468 [2020-10-23 23:45:01,300 INFO L226 Difference]: Without dead ends: 326 [2020-10-23 23:45:01,302 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 [2020-10-23 23:45:01,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-23 23:45:01,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 287. [2020-10-23 23:45:01,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-10-23 23:45:01,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 313 transitions. [2020-10-23 23:45:01,440 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 313 transitions. Word has length 149 [2020-10-23 23:45:01,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:01,441 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 313 transitions. [2020-10-23 23:45:01,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:45:01,441 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 313 transitions. [2020-10-23 23:45:01,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 23:45:01,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:01,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:45:01,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:45:01,445 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:45:01,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:01,446 INFO L82 PathProgramCache]: Analyzing trace with hash 787453312, now seen corresponding path program 1 times [2020-10-23 23:45:01,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:01,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112552387] [2020-10-23 23:45:01,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:02,077 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:45:02,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:45:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:02,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:45:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:02,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:45:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:02,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:45:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:02,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:45:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:02,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 23:45:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:02,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 23:45:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:02,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 23:45:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:02,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:45:02,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112552387] [2020-10-23 23:45:02,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:45:02,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:45:02,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251436922] [2020-10-23 23:45:02,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:45:02,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:45:02,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:45:02,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:45:02,329 INFO L87 Difference]: Start difference. First operand 287 states and 313 transitions. Second operand 10 states. [2020-10-23 23:45:02,943 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:03,417 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:03,810 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:45:04,202 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:04,581 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:45:04,957 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:06,031 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:09,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:09,397 INFO L93 Difference]: Finished difference Result 791 states and 926 transitions. [2020-10-23 23:45:09,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:45:09,398 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 23:45:09,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:09,404 INFO L225 Difference]: With dead ends: 791 [2020-10-23 23:45:09,404 INFO L226 Difference]: Without dead ends: 619 [2020-10-23 23:45:09,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 23:45:09,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2020-10-23 23:45:09,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 518. [2020-10-23 23:45:09,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-10-23 23:45:09,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 584 transitions. [2020-10-23 23:45:09,691 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 584 transitions. Word has length 162 [2020-10-23 23:45:09,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:09,692 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 584 transitions. [2020-10-23 23:45:09,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:45:09,692 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 584 transitions. [2020-10-23 23:45:09,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 23:45:09,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:09,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:45:09,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:45:09,697 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:45:09,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:09,698 INFO L82 PathProgramCache]: Analyzing trace with hash -35183950, now seen corresponding path program 1 times [2020-10-23 23:45:09,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:09,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476697748] [2020-10-23 23:45:09,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:10,107 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:45:10,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:45:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:10,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:45:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:10,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:45:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:10,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:45:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:10,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:45:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:10,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 23:45:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:10,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 23:45:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:10,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 23:45:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:10,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:45:10,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476697748] [2020-10-23 23:45:10,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:45:10,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:45:10,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999592160] [2020-10-23 23:45:10,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:45:10,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:45:10,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:45:10,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:45:10,260 INFO L87 Difference]: Start difference. First operand 518 states and 584 transitions. Second operand 9 states. [2020-10-23 23:45:10,884 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:12,333 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:12,753 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:45:13,298 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:13,704 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:14,118 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:14,650 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:45:15,082 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:15,919 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:17,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:17,721 INFO L93 Difference]: Finished difference Result 1449 states and 1741 transitions. [2020-10-23 23:45:17,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:45:17,721 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-10-23 23:45:17,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:17,730 INFO L225 Difference]: With dead ends: 1449 [2020-10-23 23:45:17,730 INFO L226 Difference]: Without dead ends: 1046 [2020-10-23 23:45:17,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-23 23:45:17,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2020-10-23 23:45:18,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 881. [2020-10-23 23:45:18,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-10-23 23:45:18,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1008 transitions. [2020-10-23 23:45:18,201 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1008 transitions. Word has length 167 [2020-10-23 23:45:18,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:18,202 INFO L481 AbstractCegarLoop]: Abstraction has 881 states and 1008 transitions. [2020-10-23 23:45:18,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:45:18,202 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1008 transitions. [2020-10-23 23:45:18,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 23:45:18,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:18,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:45:18,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:45:18,207 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:45:18,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:18,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1498010514, now seen corresponding path program 1 times [2020-10-23 23:45:18,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:18,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241456336] [2020-10-23 23:45:18,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:18,609 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:45:18,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:45:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:18,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:45:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:18,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:45:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:18,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:45:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:18,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:45:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:18,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:45:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:18,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 23:45:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:18,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 23:45:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:18,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 23:45:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:18,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:45:18,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241456336] [2020-10-23 23:45:18,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:45:18,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:45:18,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924605877] [2020-10-23 23:45:18,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:45:18,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:45:18,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:45:18,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:45:18,849 INFO L87 Difference]: Start difference. First operand 881 states and 1008 transitions. Second operand 10 states. [2020-10-23 23:45:19,527 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:21,091 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:21,470 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:45:21,882 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:22,285 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:45:22,655 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:23,648 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:24,027 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:24,555 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:26,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:26,451 INFO L93 Difference]: Finished difference Result 2257 states and 2788 transitions. [2020-10-23 23:45:26,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 23:45:26,452 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-10-23 23:45:26,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:26,462 INFO L225 Difference]: With dead ends: 2257 [2020-10-23 23:45:26,463 INFO L226 Difference]: Without dead ends: 1491 [2020-10-23 23:45:26,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 23:45:26,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2020-10-23 23:45:26,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1223. [2020-10-23 23:45:26,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-10-23 23:45:26,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1415 transitions. [2020-10-23 23:45:26,946 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1415 transitions. Word has length 172 [2020-10-23 23:45:26,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:26,947 INFO L481 AbstractCegarLoop]: Abstraction has 1223 states and 1415 transitions. [2020-10-23 23:45:26,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:45:26,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1415 transitions. [2020-10-23 23:45:26,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-23 23:45:26,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:26,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:45:26,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:45:26,952 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:45:26,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:26,953 INFO L82 PathProgramCache]: Analyzing trace with hash 622146200, now seen corresponding path program 1 times [2020-10-23 23:45:26,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:26,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [916917537] [2020-10-23 23:45:26,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,315 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:45:27,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:45:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:45:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:45:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:45:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:45:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:45:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 23:45:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 23:45:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:45:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:45:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 23:45:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-23 23:45:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:27,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:45:27,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [916917537] [2020-10-23 23:45:27,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:45:27,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 23:45:27,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538572962] [2020-10-23 23:45:27,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 23:45:27,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:45:27,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 23:45:27,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:45:27,542 INFO L87 Difference]: Start difference. First operand 1223 states and 1415 transitions. Second operand 11 states. [2020-10-23 23:45:29,353 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:29,742 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:45:30,218 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:45:30,665 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:31,074 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:31,442 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:33,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:33,983 INFO L93 Difference]: Finished difference Result 2948 states and 3690 transitions. [2020-10-23 23:45:33,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 23:45:33,983 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 210 [2020-10-23 23:45:33,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:33,996 INFO L225 Difference]: With dead ends: 2948 [2020-10-23 23:45:33,996 INFO L226 Difference]: Without dead ends: 1840 [2020-10-23 23:45:34,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 23:45:34,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2020-10-23 23:45:34,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1261. [2020-10-23 23:45:34,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1261 states. [2020-10-23 23:45:34,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1455 transitions. [2020-10-23 23:45:34,527 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1455 transitions. Word has length 210 [2020-10-23 23:45:34,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:34,528 INFO L481 AbstractCegarLoop]: Abstraction has 1261 states and 1455 transitions. [2020-10-23 23:45:34,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 23:45:34,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1455 transitions. [2020-10-23 23:45:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-23 23:45:34,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:34,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:45:34,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:45:34,533 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:45:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:34,534 INFO L82 PathProgramCache]: Analyzing trace with hash 559817464, now seen corresponding path program 1 times [2020-10-23 23:45:34,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:34,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375675321] [2020-10-23 23:45:34,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,925 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:45:34,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:45:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:45:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:45:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:45:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:34,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:45:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:35,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:45:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:35,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 23:45:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:35,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 23:45:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:35,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:35,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:35,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:35,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:45:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:35,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:45:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:35,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 23:45:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:35,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-23 23:45:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:35,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:45:35,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375675321] [2020-10-23 23:45:35,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:45:35,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 23:45:35,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983556421] [2020-10-23 23:45:35,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 23:45:35,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:45:35,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 23:45:35,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 23:45:35,193 INFO L87 Difference]: Start difference. First operand 1261 states and 1455 transitions. Second operand 14 states. [2020-10-23 23:45:35,974 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:36,350 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:45:36,715 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:37,080 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:37,430 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:38,741 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:39,115 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:39,519 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:39,935 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:40,331 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:43,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:43,455 INFO L93 Difference]: Finished difference Result 3030 states and 3849 transitions. [2020-10-23 23:45:43,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 23:45:43,456 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 210 [2020-10-23 23:45:43,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:43,467 INFO L225 Difference]: With dead ends: 3030 [2020-10-23 23:45:43,467 INFO L226 Difference]: Without dead ends: 1884 [2020-10-23 23:45:43,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 23:45:43,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2020-10-23 23:45:44,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1285. [2020-10-23 23:45:44,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1285 states. [2020-10-23 23:45:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1479 transitions. [2020-10-23 23:45:44,046 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1479 transitions. Word has length 210 [2020-10-23 23:45:44,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:44,047 INFO L481 AbstractCegarLoop]: Abstraction has 1285 states and 1479 transitions. [2020-10-23 23:45:44,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 23:45:44,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1479 transitions. [2020-10-23 23:45:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-23 23:45:44,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:44,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:45:44,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 23:45:44,051 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:45:44,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:44,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1595243915, now seen corresponding path program 1 times [2020-10-23 23:45:44,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:44,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581707395] [2020-10-23 23:45:44,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,473 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:45:44,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:45:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:45:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:45:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:45:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:45:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:45:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 23:45:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 23:45:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:45:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:45:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 23:45:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-23 23:45:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:44,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:45:44,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581707395] [2020-10-23 23:45:44,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:45:44,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 23:45:44,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210153560] [2020-10-23 23:45:44,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 23:45:44,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:45:44,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 23:45:44,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 23:45:44,760 INFO L87 Difference]: Start difference. First operand 1285 states and 1479 transitions. Second operand 8 states. [2020-10-23 23:45:45,412 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:46,147 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:51,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:51,840 INFO L93 Difference]: Finished difference Result 4601 states and 5891 transitions. [2020-10-23 23:45:51,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-23 23:45:51,840 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 210 [2020-10-23 23:45:51,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:51,861 INFO L225 Difference]: With dead ends: 4601 [2020-10-23 23:45:51,861 INFO L226 Difference]: Without dead ends: 3431 [2020-10-23 23:45:51,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-10-23 23:45:51,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3431 states. [2020-10-23 23:45:53,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3431 to 2505. [2020-10-23 23:45:53,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2505 states. [2020-10-23 23:45:53,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 2911 transitions. [2020-10-23 23:45:53,071 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 2911 transitions. Word has length 210 [2020-10-23 23:45:53,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:53,072 INFO L481 AbstractCegarLoop]: Abstraction has 2505 states and 2911 transitions. [2020-10-23 23:45:53,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 23:45:53,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 2911 transitions. [2020-10-23 23:45:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-23 23:45:53,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:53,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:45:53,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 23:45:53,077 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:45:53,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:53,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1703597288, now seen corresponding path program 1 times [2020-10-23 23:45:53,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:53,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361028825] [2020-10-23 23:45:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:45:53,146 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:45:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:45:53,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:45:53,475 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:45:53,476 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:45:53,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 23:45:53,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:45:53 BoogieIcfgContainer [2020-10-23 23:45:53,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:45:53,710 INFO L168 Benchmark]: Toolchain (without parser) took 60734.88 ms. Allocated memory was 161.5 MB in the beginning and 914.4 MB in the end (delta: 752.9 MB). Free memory was 137.5 MB in the beginning and 411.3 MB in the end (delta: -273.8 MB). Peak memory consumption was 479.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:45:53,711 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory was 105.7 MB in the beginning and 105.6 MB in the end (delta: 71.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:45:53,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.01 ms. Allocated memory is still 161.5 MB. Free memory was 137.0 MB in the beginning and 115.4 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:45:53,712 INFO L168 Benchmark]: Boogie Preprocessor took 131.02 ms. Allocated memory is still 161.5 MB. Free memory was 115.2 MB in the beginning and 142.9 MB in the end (delta: -27.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. [2020-10-23 23:45:53,713 INFO L168 Benchmark]: RCFGBuilder took 1436.64 ms. Allocated memory is still 161.5 MB. Free memory was 142.9 MB in the beginning and 77.7 MB in the end (delta: 65.2 MB). Peak memory consumption was 67.1 MB. Max. memory is 8.0 GB. [2020-10-23 23:45:53,714 INFO L168 Benchmark]: TraceAbstraction took 58622.77 ms. Allocated memory was 161.5 MB in the beginning and 914.4 MB in the end (delta: 752.9 MB). Free memory was 77.2 MB in the beginning and 411.3 MB in the end (delta: -334.1 MB). Peak memory consumption was 418.7 MB. Max. memory is 8.0 GB. [2020-10-23 23:45:53,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory was 105.7 MB in the beginning and 105.6 MB in the end (delta: 71.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 530.01 ms. Allocated memory is still 161.5 MB. Free memory was 137.0 MB in the beginning and 115.4 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 131.02 ms. Allocated memory is still 161.5 MB. Free memory was 115.2 MB in the beginning and 142.9 MB in the end (delta: -27.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1436.64 ms. Allocated memory is still 161.5 MB. Free memory was 142.9 MB in the beginning and 77.7 MB in the end (delta: 65.2 MB). Peak memory consumption was 67.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 58622.77 ms. Allocated memory was 161.5 MB in the beginning and 914.4 MB in the end (delta: 752.9 MB). Free memory was 77.2 MB in the beginning and 411.3 MB in the end (delta: -334.1 MB). Peak memory consumption was 418.7 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)=178, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=178, head={0:0}, methaneLevelCritical=147, pumpRunning=138, systemActive=137, waterLevel=140] [L492] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=178, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=178, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=137, waterLevel=140] [L493] int systemActive = 1; VAL [\old(cleanupTimeShifts)=178, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=178, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=140] [L813] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=178, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=140] [L910] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=1] [L911] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=178, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L886] 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] [L887] 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] [L891] 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] [L892] 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] [L893] 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] [L768] 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] [L771] 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] [L772] 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] [L893] 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] [L893] 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] [L895] 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] [L897] 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] [L898] 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] [L880] 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] [L415] 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] [L416] 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] [L417] 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] [L418] 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] [L419] 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] [L422] 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] [L424] 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] [L426] 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] [L432] 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] [L434] 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] [L436] 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] [L928] 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] [L929] 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] [L436] 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] [L442] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L444] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L446] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L940] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L943] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L446] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L452] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L454] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L456] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L734] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L456] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L471] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L500] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L507] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L509] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L581] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L584] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L599] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L555] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L573] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L529] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L534] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L678] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L679] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L680] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L684] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L990] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L993] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L997] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L998] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L684] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L684] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L686] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L689] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L691] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L692] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L534] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L534] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L536] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L538] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L609] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L538] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L573] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L509] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L515] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L779] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L780] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L784] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L949] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L952] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L953] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L784] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L784] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L786] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L788] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L633] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L636] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L637] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L788] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L788] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L790] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L792] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L808] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product56.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 672 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 58.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 48.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2297 SDtfs, 5053 SDslu, 4587 SDs, 0 SdLazy, 10303 SolverSat, 1721 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 211 SyntacticMatches, 4 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 19.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2505occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 2723 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 1643 NumberOfCodeBlocks, 1643 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1420 ConstructedInterpolants, 0 QuantifiedInterpolants, 643253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...